UI-TARS 7B pricing and routing profile
UI-TARS 7B from Bytedance lists at $0.10 per million input tokens and $0.20 per million output tokens, with a 128,000-token context window. Prices from OpenRouter's catalogue on 2026-09-28.
Structured outputLog probabilities
Cost per 1,000 requests
| Request shape | List cost |
|---|---|
| Classification or routing (600 tokens in, 10 out) | $0.062 |
| Chat reply (2,000 in, 400 out) | $0.28 |
| Retrieval-augmented answer (8,000 in, 500 out) | $0.90 |
Before prompt caching. Try your own shape in the cost calculator.
Can Gimbix route to it first?
Yes. At least one host return token log probabilities for UI-TARS 7B , which is the confidence signal Gimbix uses to let a cheaper model answer first.
Cheaper models that can answer first
Models priced below UI-TARS 7B that expose a confidence signal. Whether they answer your traffic as well is what a Gimbix pilot measures.
| Model | Input / output per 1M | Cheaper on a chat reply |
|---|---|---|
| Nemotron 3.5 Lightning | $0.08 / $0.20 | 14% |
| Nemotron 3 Nano 30B A3B | $0.05 / $0.20 | 36% |
| Llama 3.1 8B Instruct | $0.05 / $0.08 | 53% |
| Qwen3.7 Flash | $0.03 / $0.13 | 60% |
| Granite 4.0 Micro | $0.017 / $0.112 | 72% |
| gpt-oss-20b | $0.018 / $0.09 | 74% |
Questions
How much does UI-TARS 7B cost?
UI-TARS 7B lists at $0.10 per million input tokens and $0.20 per million output tokens on OpenRouter as of 2026-09-28. A typical chat reply of 2,000 input and 400 output tokens costs about $0.28 per 1,000 requests.
What is the context window of UI-TARS 7B ?
128,000 tokens.
Can a cheaper model replace UI-TARS 7B ?
Sometimes. Gimbix proves it on your own traffic before routing: the cheaper model must match UI-TARS 7B on one half of your requests and make at most three answers worse on the other.