UI-TARS 7B
UI-TARS-1.5 is a multimodal vision-language agent optimized for GUI-based environments, including desktop interfaces, web browsers, mobile systems, and games.
Model by ByteDance
Chalk Labs
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Install
Pick your client. Read the repository before you give any tool access to your data.
{
"model": "bytedance/ui-tars-1.5-7b",
"baseURL": "https://openrouter.ai/api/v1"
}OpenAI-compatible API: point any OpenAI SDK at the base URL and use this model id.
Settings it needs
OPENROUTER_API_KEYrequiredsecret
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About
Use cases: browser-automation
Reviews
Write a reviewNo reviews yet. Installed it? Reviews come from verified installers only. How reviews work
Price and limits
| Variant | Input $/M tokens | Output $/M tokens | Cached input $/M |
|---|---|---|---|
| Standard | $0.1 | $0.2 | $0.1 |
Price as of Oct 26, 2026 from OpenRouter. Prices change often; check before you rely on one.
- Provider
- ByteDance
- Model id
bytedance/ui-tars-1.5-7b- Context window
- 128,000 tokens (128K)
- Max output
- 2,048 tokens
- Input
- image, text
- Output
- text
- Tool calling
- Not listed
- Structured outputs
- Yes
- Reasoning
- No
- Weights
- Open: ByteDance-Seed/UI-TARS-1.5-7B
- Released
- Jul 22, 2025
- Knowledge cutoff
- 2025-01-31
Details
- Auth
- API key
- License
- License unknown
- First seen
- Oct 24, 2026
- Last checked
- Oct 26, 2026
- Source
- OpenRouter
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Done for you
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Chalk Labs scopes, builds and runs agents for your team: the task audit, the eval harness, the integrations and the weekly ops report. Fixed scope, priced before we start.
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Chalk Labs is a two-founder AI and growth studio. We build AI agents, CRMs and MVPs for Web3 and AI companies, and have shipped 50+ product and token launches.
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Rahil Jain, Co-founder, Chalk Labs. Ex-Goldman Sachs engineer. You talk to the person who builds it.
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Cite this page
UI-TARS 7B: price, context window, tool use. Agent Mart. https://agentmart.dev/models/bytedance-ui-tars-1-5-7b (last updated 2026-10-26)