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UI-TARS-1.5
Model family: ui-tars
An open-weightA model where the trained weights are freely downloadable — you can run it yourself without contacting the creator. Llama, Mistral, Qwen, and Gemma are open-weight. Open-weight does not mean open-source: the training data and code often stay private. The license still governs what you can do with the weights, including whether you can use them commercially. "GUI agent" model that sees a screen and operates software like a person — clicking, typing, navigating — for computer-use automation. 7B, runnable locally, with a larger 72B variant available.
Listing Notes
Specialized for on-screen agent tasks rather than general chat — it reads screenshots and emits UI actions. Pairs with ByteDance's open-sourceA stricter standard than open-weight: the weights, the training code, and the training data are all released publicly. Very few large language models meet the full open-source bar — most "open" models in the AI world are actually open-weight. When in doubt, check the license file and the creator's documentation. UI-TARS Desktop app for end-to-end computer-use automation.
Identity
- Creator
- ByteDance
- Model family
- ui-tars
- Release date
- 2025-04-16
Technical specs
- Parameter count
- 7B
- Context window
- 128K tokens
- Modalities
- Image Input
- Text
- Primary capabilities
- Function Calling
- Instruction Following
- Reasoning
- Tool Use
- Vision
License
- License
- Apache License 2.0
- Commercial use
- Allowed
- Terms
- Modification ✓
- Redistribution ✓
- Attribution ✓
Access
- Openness
- Open Weight
- Access methods
- Local Runtime Vllm
- Weights Download Hf
- Cost tier
- Self Hosted Only
- open-weight
- agent
- computer-use
- vision
- small
- china-based
- apache-2-0