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ByteDanceOpen-weight·128K context·— params

UI-TARS 7Bbytedance/ui-tars-1-5-7b

UI-TARS-1.5 is a multimodal vision-language agent optimized for GUI-based environments, including desktop interfaces, web browsers, mobile systems, and games. Built by ByteDance, it builds upon the UI-TARS framework with reinforcement...

Cheapest blended:$0.13 / 1M tokenson ByteDance Doubao (Volcengine) · 1 provider listed

Pricing across providers

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ProviderInput /1MOutput /1MBlended /1MLatency p50FormatFreshnessAction

1 hosting hidden — prices older than 60 days are pending re-verification.

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Works with

Point any of these clients at a hosting's base URL — they all speak at least one of this model's endpoint protocols (OPENAI_COMPATIBLE).

Capabilities

Code samples

Example using ByteDance Doubao (Volcengine) — the cheapest hosting for this model as of last verification. Swap base_url and model to use a different provider from the matrix above.

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://ark.cn-beijing.volces.com/api/v3",
)

response = client.chat.completions.create(
    model="ui-tars-1.5-7b",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)

Technical specs

Context
128K
Max output
2K
Parameters
—
Release
—
Training cutoff
—
License
—
Hugging Face →

Similar models

Compare with

  • UI-TARS 7B vs GLM 4.5V
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  • UI-TARS 7B vs GLM 4.6V
    Comparison planned — not yet published
  • UI-TARS 7B vs GLM 5V Turbo
    Comparison planned — not yet published

Frequently asked

How much does UI-TARS 7B cost?+
The cheapest public hosting is $0.13 per 1M blended tokens on ByteDance Doubao (Volcengine). 1 total providers are listed above with per-input / per-output / cached pricing.
How do I access UI-TARS 7B from outside China?+
All hostings listed above support global access. The official API (e.g. api.deepseek.com, dashscope-intl.aliyuncs.com) accepts international credit cards and does not require a Chinese mobile number. For privacy-sensitive workloads, third-party aggregators like Together.ai host the model on US/EU infrastructure.
Is UI-TARS 7B open-source? Can I fine-tune it?+
Yes. UI-TARS 7B is open-weight under the unspecified license. Weights are available on Hugging Face for local inference, fine-tuning, and commercial use (see license for specific terms).
Is UI-TARS 7B OpenAI-compatible?+
Most listed hostings expose an OpenAI-compatible API, so you can point an existing openai SDK client at the Provider's base_url and use the Provider's model name. See the Code Samples above for a copy-pasteable example.
What's the maximum context window for UI-TARS 7B?+
The model supports up to 128,000 tokens of context (input + output). Some hosted versions may impose a smaller limit — check the "Context" column in the pricing matrix for each provider.