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+ ---
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+ pretty_name: OpenMobile-Data-v2
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+ language:
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+ - en
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+ - zh
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+ task_categories:
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+ - image-text-to-text
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+ tags:
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+ - mobile
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+ - gui-agent
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+ - multimodal
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+ - emulator
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+ - simulator
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+ size_categories:
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+ - 100K<n<1M
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+ ---
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+
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+ # OpenMobile-Data
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+
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+ Supervised fine-tuning data for mobile GUI agents. Each example is one decision step from a trajectory: 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**.
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+
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+ The release contains **11,643** trajectories and **118,582** steps, about **59.2 GB**. Trajectory folders contain only `screenshot_step{K}.png`.
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+
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+ ## Splits
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+
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+ | Split | File | Trajectories | Steps | Tools |
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+ | --- | --- | ---: | ---: | --- |
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+ | Emulator | `emulator/train.json` | 7,725 | 83,631 | `mobile_use` only. 3,202 cross-app, 4,523 single-app |
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+ | Simulator, GUI-only | `simulator/gui-only/train.json` | 2,144 | 22,857 | `mobile_use` only |
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+ | Simulator, hybrid | `simulator/hybrid/train.json` | 1,774 | 12,094 | `mobile_use`, plus extra app tools listed in the current tool message |
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+
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+ `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`.
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+
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+ ## Record format
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+
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+ Each `train.json` is a list of objects with `id`, `messages`, and `images`.
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+
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+ - `images` holds at most the last three screenshots, oldest first. Paths are relative to that JSON file.
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+ - Earlier screenshots are replaced in the text by `This screenshot has been collapsed.` The remaining `<image>` placeholders line up with `images`.
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+ - History `assistant` turns are marked `"loss": false`. Supervise the last `assistant` turn.
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+ - Hybrid `tool` messages may include a foreground-app tool catalog. Those tools are valid only while that app stays in front.
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+
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+ ## Use with ms-swift
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+
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+ Download the full repository so the screenshot paths resolve. The dataset viewer table stores those paths as strings and does not replace this download.
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+
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+ ```bash
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+ hf download OpenMobile-2/OpenMobile-Data --repo-type dataset --local-dir OpenMobile-Data
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+
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+ swift sft \
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+ --custom_dataset_info OpenMobile-Data/dataset_info.json \
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+ --dataset emulator_qwen35_last3_noloop_notitle_nocoord_think_thought \
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+ mobilegym_qwen35_last3_noloop_notitle_nocoord_think_thought \
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+ gui_mcp_qwen35_last3_noloop_notitle_nocoord_think_thought
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+ ```
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+
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+ Adjust `model`, batch size, and output paths for your local [ms-swift](https://github.com/modelscope/ms-swift) setup and hardware.