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Datasets:
VideoMemBench
/
data

Tasks:
Video-Text-to-Text
Visual Question Answering
Modalities:
Text
Video
Formats:
json
Languages:
English
Size:
< 1K
ArXiv:
Tags:
video
multi-turn
memory
benchmark
Libraries:
Datasets
pandas
Polars
License:
Dataset card Data Studio Files
xet
 Community
1
data
File size: 42,183 Bytes
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---
license: cc-by-nc-sa-4.0
language:
- en
pretty_name: VideoMemBench
task_categories:
- video-text-to-text
- visual-question-answering
size_categories:
- n<1K
tags:
- video
- multi-turn
- memory
- benchmark
configs:
- config_name: default
  data_files:
  - split: test
    path: annotations.jsonl
---

<p align="center">
  <img src="https://raw.githubusercontent.com/Oliiveralien/VideoMemBench/main/assets/readme-banner.svg" width="100%" alt="VideoMemBench: How Well Do MLLMs Remember in Video Conversations?" />
</p>

<p align="center">
  <a href="https://videomembench.github.io/"><img src="https://img.shields.io/badge/%F0%9F%8D%8E%20Project-VideoMemBench-e58ab5?style=flat-square" alt="🍎 Project: VideoMemBench" height="26" /></a>
  <a href="https://arxiv.org/abs/2610.40131"><img src="https://img.shields.io/badge/cs.CV-arXiv%3A2610.40131-b31b1b?style=flat-square&logo=arxiv&logoColor=white" alt="cs.CV: arXiv:2610.40131" height="26" /></a>
  <a href="https://github.com/Oliiveralien/VideoMemBench"><img src="https://img.shields.io/badge/GitHub-VideoMemBench-2855d9?style=flat-square&logo=github&logoColor=white" alt="GitHub: VideoMemBench" height="26" /></a>
  <a href="https://videomembench.github.io/#results"><img src="https://img.shields.io/badge/%F0%9F%8F%86%20Leaderboard-Rank-e6b000?style=flat-square" alt="🏆 Leaderboard: Rank" height="26" /></a>
</p>

## 🎬 Benchmark

VideoMemBench evaluates **in-context video memory**: the ability to retrieve and reuse information established earlier in a multi-turn conversation about a video. Each sample pairs one video with an ordered dialogue, reference answers, and typed dependencies between turns.

- **Episodic dependency:** a later question revisits a visual episode, entity, or event established in an earlier turn.
- **Answer dependency:** a later question builds on an earlier answer, requiring information carried through the conversation.

Dependencies are checked for necessity and non-leakage, and answers must be visually grounded. A planner, generator, and judger construct and check dialogues, followed by human expert review. See the [paper](https://arxiv.org/abs/2610.40131) for construction and collection details.

## 🏆 Leaderboard

<div style="overflow-x: auto;">
<table style="display: table; width: 100%; min-width: 760px; font-size: 14px; color: #20202c; background-color: white;">
<thead>
<tr style="background-color: #f3f3f5;">
<th style="text-align: center; padding: 14px 10px;">Rank</th>
<th style="text-align: left; padding: 14px 18px; width: 30%;">Model</th>
<th style="text-align: center; padding: 14px 10px; white-space: nowrap;">TurnAcc<br><small style="font-weight: normal; font-size: 12px; color: #666;">All turns</small></th>
<th style="text-align: center; padding: 14px 10px; white-space: nowrap;">EpiDepAcc<br><small style="font-weight: normal; font-size: 12px; color: #666;">Episodic dependency</small></th>
<th style="text-align: center; padding: 14px 10px; white-space: nowrap;">AnsDepAcc<br><small style="font-weight: normal; font-size: 12px; color: #666;">Answer dependency</small></th>
<th style="text-align: center; padding: 14px 10px; white-space: nowrap;">Overall ↓<br><small style="font-weight: normal; font-size: 12px; color: #666;">Mean score</small></th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">1</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/claude-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Claude Opus 5</strong></td>
<td style="text-align: center; padding: 12px 10px;">52.3</td>
<td style="text-align: center; padding: 12px 10px;">49.1</td>
<td style="text-align: center; padding: 12px 10px;">35.7</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">45.7</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">2</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/gemini-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Gemini 3.8 Flash</strong></td>
<td style="text-align: center; padding: 12px 10px;">50.4</td>
<td style="text-align: center; padding: 12px 10px;">46.6</td>
<td style="text-align: center; padding: 12px 10px;">30.3</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">42.4</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">3</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/kimi-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Kimi K3</strong></td>
<td style="text-align: center; padding: 12px 10px;">50.5</td>
<td style="text-align: center; padding: 12px 10px;">49.0</td>
<td style="text-align: center; padding: 12px 10px;">27.1</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">42.2</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">4</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/openai.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">GPT-5.6-sol</strong></td>
<td style="text-align: center; padding: 12px 10px;">50.0</td>
<td style="text-align: center; padding: 12px 10px;">47.8</td>
<td style="text-align: center; padding: 12px 10px;">27.1</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">41.7</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">5</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/gemini-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Gemini 3.5 Flash</strong></td>
<td style="text-align: center; padding: 12px 10px;">49.6</td>
<td style="text-align: center; padding: 12px 10px;">45.5</td>
<td style="text-align: center; padding: 12px 10px;">29.7</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">41.6</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">6</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/openai.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">GPT-5.5</strong></td>
<td style="text-align: center; padding: 12px 10px;">48.0</td>
<td style="text-align: center; padding: 12px 10px;">46.5</td>
<td style="text-align: center; padding: 12px 10px;">27.0</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">40.5</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">7</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/claude-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Claude Sonnet 5</strong></td>
<td style="text-align: center; padding: 12px 10px;">47.8</td>
<td style="text-align: center; padding: 12px 10px;">45.3</td>
<td style="text-align: center; padding: 12px 10px;">27.3</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">40.2</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">8</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/gemini-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Gemini 3.1 Pro Preview</strong></td>
<td style="text-align: center; padding: 12px 10px;">45.7</td>
<td style="text-align: center; padding: 12px 10px;">44.8</td>
<td style="text-align: center; padding: 12px 10px;">27.0</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">39.1</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">9</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/openai.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">GPT-5.4</strong></td>
<td style="text-align: center; padding: 12px 10px;">44.4</td>
<td style="text-align: center; padding: 12px 10px;">42.6</td>
<td style="text-align: center; padding: 12px 10px;">21.9</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">36.3</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">10</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3-VL-235B-A22B</strong></td>
<td style="text-align: center; padding: 12px 10px;">43.1</td>
<td style="text-align: center; padding: 12px 10px;">41.6</td>
<td style="text-align: center; padding: 12px 10px;">18.6</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">34.4</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">11</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3.5-27B</strong></td>
<td style="text-align: center; padding: 12px 10px;">42.2</td>
<td style="text-align: center; padding: 12px 10px;">39.8</td>
<td style="text-align: center; padding: 12px 10px;">20.9</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">34.3</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">12</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3.5-397B-A17B</strong></td>
<td style="text-align: center; padding: 12px 10px;">42.3</td>
<td style="text-align: center; padding: 12px 10px;">40.1</td>
<td style="text-align: center; padding: 12px 10px;">20.3</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">34.2</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">13</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3.5-122B-A10B</strong></td>
<td style="text-align: center; padding: 12px 10px;">42.4</td>
<td style="text-align: center; padding: 12px 10px;">39.5</td>
<td style="text-align: center; padding: 12px 10px;">19.9</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">33.9</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">14</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3.5-35B-A3B</strong></td>
<td style="text-align: center; padding: 12px 10px;">38.2</td>
<td style="text-align: center; padding: 12px 10px;">36.3</td>
<td style="text-align: center; padding: 12px 10px;">18.0</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">30.8</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">15</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3-VL-32B</strong></td>
<td style="text-align: center; padding: 12px 10px;">39.3</td>
<td style="text-align: center; padding: 12px 10px;">35.9</td>
<td style="text-align: center; padding: 12px 10px;">17.2</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">30.8</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">16</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3-VL-30B-A3B</strong></td>
<td style="text-align: center; padding: 12px 10px;">36.4</td>
<td style="text-align: center; padding: 12px 10px;">35.1</td>
<td style="text-align: center; padding: 12px 10px;">15.8</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">29.1</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">17</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3.5-9B</strong></td>
<td style="text-align: center; padding: 12px 10px;">34.6</td>
<td style="text-align: center; padding: 12px 10px;">33.4</td>
<td style="text-align: center; padding: 12px 10px;">12.9</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">27.0</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">18</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3-VL-8B</strong></td>
<td style="text-align: center; padding: 12px 10px;">34.8</td>
<td style="text-align: center; padding: 12px 10px;">32.1</td>
<td style="text-align: center; padding: 12px 10px;">12.3</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">26.4</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">19</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3.5-4B</strong></td>
<td style="text-align: center; padding: 12px 10px;">33.8</td>
<td style="text-align: center; padding: 12px 10px;">32.6</td>
<td style="text-align: center; padding: 12px 10px;">12.5</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">26.3</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">20</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3-VL-4B</strong></td>
<td style="text-align: center; padding: 12px 10px;">32.4</td>
<td style="text-align: center; padding: 12px 10px;">29.4</td>
<td style="text-align: center; padding: 12px 10px;">12.9</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">24.9</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">21</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen2.5-VL-32B</strong></td>
<td style="text-align: center; padding: 12px 10px;">31.7</td>
<td style="text-align: center; padding: 12px 10px;">32.6</td>
<td style="text-align: center; padding: 12px 10px;">9.6</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">24.6</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">22</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen2.5-VL-7B</strong></td>
<td style="text-align: center; padding: 12px 10px;">26.2</td>
<td style="text-align: center; padding: 12px 10px;">24.9</td>
<td style="text-align: center; padding: 12px 10px;">8.4</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">19.8</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">23</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/keye.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Keye-VL-1.5-8B</strong></td>
<td style="text-align: center; padding: 12px 10px;">25.4</td>
<td style="text-align: center; padding: 12px 10px;">24.5</td>
<td style="text-align: center; padding: 12px 10px;">8.2</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">19.4</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">24</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen2.5-VL-3B</strong></td>
<td style="text-align: center; padding: 12px 10px;">23.5</td>
<td style="text-align: center; padding: 12px 10px;">24.4</td>
<td style="text-align: center; padding: 12px 10px;">5.7</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">17.9</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">25</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3.5-0.8B</strong></td>
<td style="text-align: center; padding: 12px 10px;">21.6</td>
<td style="text-align: center; padding: 12px 10px;">21.3</td>
<td style="text-align: center; padding: 12px 10px;">5.7</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">16.2</strong></td>
</tr>
</tbody>
</table>
</div>

### 🎞️ Evaluation with fewer frames

13 open-weight models evaluated with 64 or 32 fixed frames per video.

<details open>
<summary><strong>64 frames</strong></summary>

<div style="overflow-x: auto;">
<table style="display: table; width: 100%; min-width: 760px; font-size: 14px; color: #20202c; background-color: white;">
<thead>
<tr style="background-color: #f3f3f5;">
<th style="text-align: center; padding: 14px 10px;">Rank</th>
<th style="text-align: left; padding: 14px 18px; width: 30%;">Model</th>
<th style="text-align: center; padding: 14px 10px; white-space: nowrap;">TurnAcc<br><small style="font-weight: normal; font-size: 12px; color: #666;">All turns</small></th>
<th style="text-align: center; padding: 14px 10px; white-space: nowrap;">EpiDepAcc<br><small style="font-weight: normal; font-size: 12px; color: #666;">Episodic dependency</small></th>
<th style="text-align: center; padding: 14px 10px; white-space: nowrap;">AnsDepAcc<br><small style="font-weight: normal; font-size: 12px; color: #666;">Answer dependency</small></th>
<th style="text-align: center; padding: 14px 10px; white-space: nowrap;">Overall ↓<br><small style="font-weight: normal; font-size: 12px; color: #666;">Mean score</small></th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">1</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3-VL-235B-A22B</strong></td>
<td style="text-align: center; padding: 12px 10px;">40.3</td>
<td style="text-align: center; padding: 12px 10px;">39.3</td>
<td style="text-align: center; padding: 12px 10px;">15.6</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">31.7</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">2</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3.5-122B-A10B</strong></td>
<td style="text-align: center; padding: 12px 10px;">37.8</td>
<td style="text-align: center; padding: 12px 10px;">36.5</td>
<td style="text-align: center; padding: 12px 10px;">15.2</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">29.8</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">3</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3.5-27B</strong></td>
<td style="text-align: center; padding: 12px 10px;">37.9</td>
<td style="text-align: center; padding: 12px 10px;">36.7</td>
<td style="text-align: center; padding: 12px 10px;">14.8</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">29.8</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">4</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3-VL-32B</strong></td>
<td style="text-align: center; padding: 12px 10px;">37.8</td>
<td style="text-align: center; padding: 12px 10px;">36.1</td>
<td style="text-align: center; padding: 12px 10px;">14.5</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">29.5</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">5</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3.5-35B-A3B</strong></td>
<td style="text-align: center; padding: 12px 10px;">37.0</td>
<td style="text-align: center; padding: 12px 10px;">36.7</td>
<td style="text-align: center; padding: 12px 10px;">13.5</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">29.1</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">6</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3-VL-30B-A3B</strong></td>
<td style="text-align: center; padding: 12px 10px;">33.6</td>
<td style="text-align: center; padding: 12px 10px;">32.9</td>
<td style="text-align: center; padding: 12px 10px;">11.5</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">26.0</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">7</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3-VL-8B</strong></td>
<td style="text-align: center; padding: 12px 10px;">32.7</td>
<td style="text-align: center; padding: 12px 10px;">32.0</td>
<td style="text-align: center; padding: 12px 10px;">11.9</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">25.5</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">8</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3.5-9B</strong></td>
<td style="text-align: center; padding: 12px 10px;">33.4</td>
<td style="text-align: center; padding: 12px 10px;">33.2</td>
<td style="text-align: center; padding: 12px 10px;">9.6</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">25.4</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">9</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3-VL-4B</strong></td>
<td style="text-align: center; padding: 12px 10px;">31.3</td>
<td style="text-align: center; padding: 12px 10px;">30.3</td>
<td style="text-align: center; padding: 12px 10px;">12.1</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">24.5</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">10</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/keye.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Keye-VL-1.5-8B</strong></td>
<td style="text-align: center; padding: 12px 10px;">24.5</td>
<td style="text-align: center; padding: 12px 10px;">24.9</td>
<td style="text-align: center; padding: 12px 10px;">6.3</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">18.5</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">11</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen2.5-VL-7B</strong></td>
<td style="text-align: center; padding: 12px 10px;">24.1</td>
<td style="text-align: center; padding: 12px 10px;">22.7</td>
<td style="text-align: center; padding: 12px 10px;">6.4</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">17.7</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">12</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen2.5-VL-3B</strong></td>
<td style="text-align: center; padding: 12px 10px;">22.5</td>
<td style="text-align: center; padding: 12px 10px;">22.5</td>
<td style="text-align: center; padding: 12px 10px;">5.1</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">16.7</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">13</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3.5-0.8B</strong></td>
<td style="text-align: center; padding: 12px 10px;">21.0</td>
<td style="text-align: center; padding: 12px 10px;">21.1</td>
<td style="text-align: center; padding: 12px 10px;">4.7</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">15.6</strong></td>
</tr>
</tbody>
</table>
</div>

</details>

<details>
<summary><strong>32 frames</strong></summary>

<div style="overflow-x: auto;">
<table style="display: table; width: 100%; min-width: 760px; font-size: 14px; color: #20202c; background-color: white;">
<thead>
<tr style="background-color: #f3f3f5;">
<th style="text-align: center; padding: 14px 10px;">Rank</th>
<th style="text-align: left; padding: 14px 18px; width: 30%;">Model</th>
<th style="text-align: center; padding: 14px 10px; white-space: nowrap;">TurnAcc<br><small style="font-weight: normal; font-size: 12px; color: #666;">All turns</small></th>
<th style="text-align: center; padding: 14px 10px; white-space: nowrap;">EpiDepAcc<br><small style="font-weight: normal; font-size: 12px; color: #666;">Episodic dependency</small></th>
<th style="text-align: center; padding: 14px 10px; white-space: nowrap;">AnsDepAcc<br><small style="font-weight: normal; font-size: 12px; color: #666;">Answer dependency</small></th>
<th style="text-align: center; padding: 14px 10px; white-space: nowrap;">Overall ↓<br><small style="font-weight: normal; font-size: 12px; color: #666;">Mean score</small></th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">1</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3-VL-235B-A22B</strong></td>
<td style="text-align: center; padding: 12px 10px;">36.3</td>
<td style="text-align: center; padding: 12px 10px;">37.8</td>
<td style="text-align: center; padding: 12px 10px;">14.5</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">29.5</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">2</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3.5-122B-A10B</strong></td>
<td style="text-align: center; padding: 12px 10px;">35.0</td>
<td style="text-align: center; padding: 12px 10px;">35.2</td>
<td style="text-align: center; padding: 12px 10px;">10.7</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">27.0</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">3</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3.5-35B-A3B</strong></td>
<td style="text-align: center; padding: 12px 10px;">34.5</td>
<td style="text-align: center; padding: 12px 10px;">34.1</td>
<td style="text-align: center; padding: 12px 10px;">12.3</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">27.0</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">4</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3.5-27B</strong></td>
<td style="text-align: center; padding: 12px 10px;">34.9</td>
<td style="text-align: center; padding: 12px 10px;">34.2</td>
<td style="text-align: center; padding: 12px 10px;">11.7</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">26.9</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">5</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3-VL-32B</strong></td>
<td style="text-align: center; padding: 12px 10px;">34.1</td>
<td style="text-align: center; padding: 12px 10px;">32.6</td>
<td style="text-align: center; padding: 12px 10px;">13.1</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">26.6</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">6</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3-VL-30B-A3B</strong></td>
<td style="text-align: center; padding: 12px 10px;">32.1</td>
<td style="text-align: center; padding: 12px 10px;">32.5</td>
<td style="text-align: center; padding: 12px 10px;">8.0</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">24.2</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">7</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3.5-9B</strong></td>
<td style="text-align: center; padding: 12px 10px;">29.8</td>
<td style="text-align: center; padding: 12px 10px;">30.4</td>
<td style="text-align: center; padding: 12px 10px;">8.6</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">22.9</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">8</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3-VL-8B</strong></td>
<td style="text-align: center; padding: 12px 10px;">29.4</td>
<td style="text-align: center; padding: 12px 10px;">29.4</td>
<td style="text-align: center; padding: 12px 10px;">9.2</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">22.7</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">9</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3-VL-4B</strong></td>
<td style="text-align: center; padding: 12px 10px;">29.0</td>
<td style="text-align: center; padding: 12px 10px;">29.0</td>
<td style="text-align: center; padding: 12px 10px;">8.8</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">22.3</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">10</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen2.5-VL-7B</strong></td>
<td style="text-align: center; padding: 12px 10px;">23.2</td>
<td style="text-align: center; padding: 12px 10px;">23.7</td>
<td style="text-align: center; padding: 12px 10px;">4.9</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">17.3</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">11</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/keye.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Keye-VL-1.5-8B</strong></td>
<td style="text-align: center; padding: 12px 10px;">23.3</td>
<td style="text-align: center; padding: 12px 10px;">23.1</td>
<td style="text-align: center; padding: 12px 10px;">5.1</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">17.2</strong></td>
</tr>
<tr style="background-color: #f8f8f8;">
<td style="text-align: center; padding: 12px 10px; color: #777;">12</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen2.5-VL-3B</strong></td>
<td style="text-align: center; padding: 12px 10px;">22.6</td>
<td style="text-align: center; padding: 12px 10px;">23.4</td>
<td style="text-align: center; padding: 12px 10px;">4.7</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">16.9</strong></td>
</tr>
<tr>
<td style="text-align: center; padding: 12px 10px; color: #777;">13</td>
<td style="text-align: left; padding: 12px 18px; white-space: nowrap;"><img src="https://videomembench.github.io/assets/icons/qwen-color.svg" width="20" height="20" alt="" style="display: inline-block; vertical-align: middle; margin: 0 8px 0 0;" /> <strong style="color: inherit;">Qwen3.5-0.8B</strong></td>
<td style="text-align: center; padding: 12px 10px;">20.1</td>
<td style="text-align: center; padding: 12px 10px;">21.8</td>
<td style="text-align: center; padding: 12px 10px;">4.7</td>
<td style="text-align: center; padding: 12px 10px;"><strong style="color: inherit;">15.5</strong></td>
</tr>
</tbody>
</table>
</div>

</details>

For download and evaluation instructions, see the [GitHub documentation](https://github.com/Oliiveralien/VideoMemBench#readme).

## 📜 License and terms of use

- Dataset annotations: [CC BY-NC-SA 4.0](https://creativecommons.org/licenses/by-nc-sa/4.0/).
- For non-commercial academic research and evaluation only. Not for model training.
- Source videos are not covered by this license; their original rights and terms apply.

## 📚 Citation

```bibtex
@misc{hu2026videomembenchmllmsremembervideo,
  title={VideoMemBench: How Well Do MLLMs Remember in Video Conversations?},
  author={Zhengdong Hu and Chao Wang and Kaituo Feng and Huanjin Yao and Mingfei Lu and Hehe Fan and Yi Yang},
  year={2026},
  eprint={2610.40131},
  archivePrefix={arXiv},
  primaryClass={cs.CV},
  url={https://arxiv.org/abs/2610.40131},
}
```