ByteDance: UI-TARS 7B
UI-TARS 7B is a language model from ByteDance released on Jul 22, 2025. It reads text and images and writes text, with a 128K token context window and up to 2K tokens per reply.
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It costs $0.10 per million input tokens and $0.20 per million output tokens. Cached input bills at $0.10, 0% less than fresh input.
It supports structured JSON output and prompt caching.
- Modalities
- In / out price
- $0.10 / $0.20 per 1M
- Context
- 128K
- Max output
- 2K
- Released
- Jul 22, 2025
- Knowledge cutoff
- n/a
- Tool calling
- Structured output
- Reasoning
- Prompt caching
- Open weights
- Free to use
UI-TARS 7B pricing
USD, as listed on Oct 15, 2026. Most bills are input heavy, so the cached input rate matters as much as the headline price.
| Input | $0.10 / 1M tokens | |
|---|---|---|
| Output | $0.20 / 1M tokens | |
| Cached input (read) | $0.10 / 1M tokens | 0% off input |
What UI-TARS 7B costs per month
Pick a workload close to yours or type your own volumes.
Supported request parameters
What you can set when you call UI-TARS 7B through an OpenAI compatible API.
- Structured outputs
structured_outputs - Temperature
temperature
Alternatives to UI-TARS 7B
Models that take the same inputs, closest in price, cheaper ones first.
- Index 4.8
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by metaAug 5, 2026$0.10/M input tokens$0.20/M output tokens6 providers
- 33K context
Reads text, images, audio and video, writes text and audio. Tool calling. Served by 2 providers.
by qwenJan 19, 2025$0.07/M input tokens$0.27/M output tokens2 providers
- 262K context
Reads text and images. Tool calling, structured output, reasoning.
by nex-agiSep 8, 2026$0.075/M input tokens$0.25/M output tokens
- 1M context
Reads text, images and video. Tool calling, structured output, reasoning. Served by 11 providers.
by qwenFeb 23, 2026$0.065/M input tokens$0.26/M output tokens11 providers
More from ByteDance
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UI-TARS 7B questions
How much does the UI-TARS 7B API cost?
$0.10 per million input tokens and $0.20 per million output tokens, with cached input at $0.10. The estimator on this page turns that into a monthly bill for your own workload.
What is the context window of UI-TARS 7B?
128,000 tokens of input, and it can write up to 2,048 tokens in one reply. As a rough guide, a million tokens is around 750,000 English words.
Does UI-TARS 7B support tool calling?
Not through the standard tools parameter. For an agent that calls your APIs, pick a model from the alternatives below that does.
Is UI-TARS 7B open source?
No. ByteDance serves it through an API only, so you cannot download the weights or host it yourself.
When was UI-TARS 7B released?
Jul 22, 2025.
Catalog data from models.dev (MIT licensed), refreshed daily, last on Oct 15, 2026. The summary is written from these facts.