Add pipeline tag and link to paper
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by nielsr HF Staff - opened
README.md
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license: apache-2.0
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datasets:
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- open-r1/OpenR1-Math-220k
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base_model:
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- Qwen/Qwen3-1.7B
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tags:
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- math
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- trimkv
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- Compression
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> TRIM-KV is an efficient and learnable key–value eviction strategy designed to improve the efficiency of large language models (LLMs) in long-horizon inference.
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The core idea behind TRIM-KV is to learn the intrinsic importance of each key–value pair at creation time, which we call *token retention*, and then decay this importance exponentially over time to mimic the standard inference running with eviction.
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The retention score is query-agnostic and captures the long-term utility of tokens. This is different from attention scores, which are query-dependent: they capture the short-term utility for predicting the next token and are recomputed at every step, making them local, myopic, and highly dependent on the transient decoding state.
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<a href="https://arxiv.org/pdf/2512.03324"><img src="https://img.shields.io/badge/arxiv-2512.03324-red?style=for-the-badge"></a>
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### Why TRIM-KV?
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It's fast
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<div align="center">
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<img width="1000" alt="teaser" src="https://github.com/ngocbh/trimkv/blob/main/assets/speed.png?raw=true"/>
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</div>
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It's smart
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<div align="center">
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<img width="1000" alt="teaser" src="https://github.com/ngocbh/trimkv/blob/main/assets/performance.png?raw=true"/>
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</div>
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And it's interpretable
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<div align="center">
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<img width="1000" alt="teaser" src="https://github.com/ngocbh/trimkv/blob/main/assets/eviction.png?raw=true"/>
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</div>
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<div align="center">
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<img width="1000" alt="teaser" src="https://github.com/ngocbh/trimkv/blob/main/assets/vis.png?raw=true"/>
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</div>
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---
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##
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### Requirements
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- Python 3.11 or higher (tested with 3.12)
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- PyTorch 2.7.0 or higher (tested with 2.8.0)
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- FlashAttention 2.7.2.post1 or higher (tested with 2.8.0)
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- Transformers 4.57.1
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```sh
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pip install -r requirements.txt
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```
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This is a minimal set of requirements for training purposes. Additional dependencies may be needed for running specific experiments. We provided a full example of the environment used in our experiments in [`examples/env.yaml`](examples/env.yaml).
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### Installation
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From the root of the repo:
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```sh
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pip install -e .
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````
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---
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##
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```python
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import torch
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from trimkv.models.qwen3 import TrimKVQwen3ForCausalLM
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from trimkv.cache_utils import
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from transformers import AutoTokenizer
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model_path = "
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download_from = "huggingface" # options: "wandb", "local", "huggingface"
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model = TrimKVQwen3ForCausalLM.from_pretrained(
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model_path,
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torch_dtype=torch.bfloat16,
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load_trimkv_weights=True,
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download_from=download_from,
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use_cache=True,
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device_map="cuda",
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)
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# Configure TRIM-KV settings
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model.config._attn_implementation = "flash_attention_2"
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model.config.compress_memory = True
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model.config.memory_size = 512
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model.config.buffer_size = 128
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tokenizer = AutoTokenizer.from_pretrained(
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model.config.base_model,
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use_fast=True,
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padding_side="left",
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)
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#
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#
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#
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|------------------------------|-----------------------------------------------|--------------------------|-------------------------|--------------|
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| Qwen3-1.7B | [TRIM-KV-Qwen3-1.7B-Math](https://huggingface.co/ngocbh/TrimKV-Qwen3-1.7B-Math) | OpenR1-Math-220k | 16K | 256 |
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| Qwen3-4B | [TRIM-KV-Qwen3-4B-Math](https://huggingface.co/ngocbh/TrimKV-Qwen3-4B-Math) | OpenR1-Math-220k | 16K | 256 |
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| Qwen3-8B | [TRIM-KV-Qwen3-8B-Math](https://huggingface.co/ngocbh/TrimKV-Qwen3-8B-Math) | OpenR1-Math-220k | 16K | 256 |
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| Qwen3-14B | [TRIM-KV-Qwen3-14B-Math](https://huggingface.co/ngocbh/TrimKV-Qwen3-14B-Math) | OpenR1-Math-220k | 16K | 256 |
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| Qwen3-4B-Instruct-2507 | [TrimKV-Qwen3-4B-Instruct-2507](https://huggingface.co/ngocbh/TrimKV-Qwen3-4B-Instruct-2507) | Synth-Long, BookSum, Buddhi | 128K | 1024 |
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| Phi-3-mini-128k-instruct | [TrimKV-Phi-3-mini-128k-instruct](https://huggingface.co/ngocbh/TrimKV-Phi-3-mini-128k-instruct) | LongAlpaca | 128K | 512 |
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| DeepSeek-R1-Distill-Llama-8B | [TrimKV-DeepSeek-R1-Distill-Llama-8B](https://huggingface.co/ngocbh/TrimKV-DeepSeek-R1-Distill-Llama-8B) | OpenR1-Math-220k | 32K | 256 |
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---
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base_model:
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- Qwen/Qwen3-1.7B
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datasets:
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- open-r1/OpenR1-Math-220k
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license: apache-2.0
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pipeline_tag: text-generation
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tags:
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- math
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- trimkv
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- Compression
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# TrimKV: Token Retention for Memory-Bounded Key-Value Eviction
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This repository contains the weights for **TRIM-KV-Qwen3-1.7B-Math**, presented in the paper [Make Each Token Count: Towards Improving Long-Context Performance with KV Cache Eviction](https://huggingface.co/papers/2605.09649).
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The official implementation and training code can be found at [https://github.com/ngocbh/trimkv](https://github.com/ngocbh/trimkv).
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> TRIM-KV is an efficient and learnable key–value eviction strategy designed to improve the efficiency of large language models (LLMs) in long-horizon inference.
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The core idea behind TRIM-KV is to learn the intrinsic importance of each key–value pair at creation time, which we call *token retention*, and then decay this importance exponentially over time to mimic the standard inference running with eviction.
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The retention score is query-agnostic and captures the long-term utility of tokens. This is different from attention scores, which are query-dependent: they capture the short-term utility for predicting the next token and are recomputed at every step, making them local, myopic, and highly dependent on the transient decoding state.
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### Why TRIM-KV?
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It's fast
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<div align="center">
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<img width="1000" alt="teaser" src="https://github.com/ngocbh/trimkv/blob/main/assets/speed.png?raw=true"/>
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</div>
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It's smart
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<div align="center">
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<img width="1000" alt="teaser" src="https://github.com/ngocbh/trimkv/blob/main/assets/performance.png?raw=true"/>
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</div>
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And it's interpretable
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<div align="center">
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<img width="1000" alt="teaser" src="https://github.com/ngocbh/trimkv/blob/main/assets/eviction.png?raw=true"/>
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</div>
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---
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## Quick Start
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### Installation
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```sh
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pip install trimkv
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```
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### Usage
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```python
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import torch
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from trimkv.models.qwen3 import TrimKVQwen3ForCausalLM
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from trimkv.cache_utils import PagedTrimKVCache
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from transformers import AutoTokenizer
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model_path = "ngocbh/TrimKV-Qwen3-1.7B-Math"
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model = TrimKVQwen3ForCausalLM.from_pretrained(
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model_path,
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torch_dtype=torch.bfloat16,
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load_trimkv_weights=True,
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use_cache=True,
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device_map="cuda",
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)
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model.config._attn_implementation = "flash_attention_2"
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tokenizer = AutoTokenizer.from_pretrained(
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model.config.base_model, use_fast=True, padding_side="left"
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)
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# PagedTrimKVCache is the inference-time cache used by TRIM-KV.
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# It allocates a global pool of blocks and reassigns them to heads on the fly.
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past_key_values = PagedTrimKVCache(
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num_layers=model.config.num_hidden_layers,
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num_heads=model.config.num_key_value_heads,
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max_seq_len=32768,
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memory_size=128,
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num_blocks_ratio=1.0,
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buffer_size=32,
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strategy="fixed_budget",
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device="cuda",
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)
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# Use model.generate as normal — pass past_key_values to enable TrimKV eviction.
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```
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## Citation
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```bibtex
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@article{bui2025make,
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title={Make Each Token Count: Towards Improving Long-Context Performance with KV Cache Eviction},
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author={Bui, Ngoc and Nguyen, Hieu Trung and Cohan, Arman and Ying, Rex},
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journal={arXiv preprint arXiv:2512.03324},
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year={2025}
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}
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```
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