Datasets:

OpenMobile-2
/

OpenMobile-Data-v2

pretty_name: OpenMobile-Data-v2
language:
  - en
  - zh
task_categories:
  - image-text-to-text
tags:
  - mobile
  - gui-agent
  - multimodal
  - emulator
  - simulator
size_categories:
  - 100K<n<1M
configs:
  - config_name: sft
    data_files:
      - split: train
        path:
          - emulator/train.json
          - simulator/gui-only/train.json
          - simulator/hybrid/train.json
  - config_name: rl
    data_files:
      - split: train
        path: RL/task.jsonl

OpenMobile-Data-v2

Two parts. SFT is one decision step per example: the model reads the remaining screenshots and the conversation history, then writes a Thought: followed by one tool call. Coordinates belong in the tool arguments. The screen space in the prompt is 999×999. RL is one task per line, with the instruction, the initial state, and the check for success.

SFT has 11,643 trajectories and 118,582 steps, about 59.2 GB. Trajectory folders contain only screenshot_step{K}.png. RL has 2,475 tasks in one JSONL file.

Splits

Split	File	Trajectories	Steps	Tools
Emulator	`emulator/train.json`	7,725	83,631	`mobile_use` only. 3,202 cross-app, 4,523 single-app
Simulator, GUI-only	`simulator/gui-only/train.json`	2,144	22,857	`mobile_use` only
Simulator, hybrid	`simulator/hybrid/train.json`	1,774	12,094	`mobile_use`, plus extra app tools listed in the current tool message

dataset_info.json registers these files as emulator_qwen35_last3_noloop_notitle_nocoord_think_thought, mobilegym_qwen35_last3_noloop_notitle_nocoord_think_thought, and gui_mcp_qwen35_last3_noloop_notitle_nocoord_think_thought.

Record format

Each train.json is a list of objects with id, messages, and images.

images holds at most the last three screenshots, oldest first. Paths are relative to that JSON file.
Earlier screenshots are replaced in the text by This screenshot has been collapsed. The remaining <image> placeholders line up with images.
History assistant turns are marked "loss": false. Supervise the last assistant turn.
Hybrid tool messages may include a foreground-app tool catalog. Those tools are valid only while that app stays in front.

RL tasks

RL/tasks.jsonl is one JSON object per line. Each line has task, init, and verify together.

task.instruction is the user goal. task.apps lists the apps involved.
init is the starting state, including assertion_initials.
verify is the success check: assertions and optional extra_checks.

Use with ms-swift

Download the full repository so the screenshot paths resolve. The dataset viewer table stores those paths as strings and does not replace this download.

hf download OpenMobile-2/OpenMobile-Data-v2 --repo-type dataset --local-dir OpenMobile-Data-v2

swift sft \
  --custom_dataset_info OpenMobile-Data-v2/dataset_info.json \
  --dataset emulator_qwen35_last3_noloop_notitle_nocoord_think_thought \
            mobilegym_qwen35_last3_noloop_notitle_nocoord_think_thought \
            gui_mcp_qwen35_last3_noloop_notitle_nocoord_think_thought

Adjust model, batch size, and output paths for your local ms-swift setup and hardware.