// bytedance

UI-TARS 7B

bytedance/ui-tars-1.5-7b

image inputprompt caching
OpenRouter + LiveBenchAll modelsFull leaderboard

UI-TARS 7B costs $0.100 per 1M input tokens and $0.200 per 1M output tokens with a 128K-token context window.

A model from bytedance, released Jul 22, 2025. LiveBench hasn't published a run for it, so this page carries measured price and specs only — no benchmark numbers.

Input / 1M
$0.100
Output / 1M
$0.200
Context
128K
LiveBench overall
Not evaluated

Specs and pricing

Input price

USD per 1M prompt tokens

$0.100
Output price

USD per 1M completion tokens, reasoning included

$0.200
Blended price

3:1 input:output — #45 cheapest of 343 listed models

$0.125
Cached input read

Blank means not priced separately — not free

$0.100
Cache write
Context window128,000 tokens
Max output2,048 tokens
Input modalitiesimage, text
Tool callingNo
Extended reasoningNo
Knowledge cutoff2025-01-31
ListedJul 22, 2025

What UI-TARS 7B costs to run

Monthly list cost across five workload shapes, using the published cached-input rate where there is one. A floor, not a quote — batch discounts and cache writes aren't included.

WorkloadPer month
Support chatbot

1.2K in / 400 out × 200K requests

$40.00/mo
RAG assistant

8K in / 600 out × 100K requests

$92.00/mo
Coding agent

40K in / 4K out × 20K requests

$96.00/mo
Document extraction

20K in / 1.5K out × 50K requests

$115.00/mo
Bulk classification

500 in / 20 out × 5M requests

$270.00/mo
Price your own workload

Compare UI-TARS 7B with

Benchmarked models at a similar price.

UI-TARS 7B FAQ

How much does UI-TARS 7B cost?

UI-TARS 7B lists at $0.100 per 1M input tokens and $0.200 per 1M output tokens, with cached input reads at $0.100 per 1M. A RAG assistant handling 100K requests a month (8K tokens in, 600 out) comes to about $92.00 at list price.

What is the context window of UI-TARS 7B ?

UI-TARS 7B accepts up to 128,000 tokens of context and can return up to 2,048 output tokens per response.

Does UI-TARS 7B support tool calling?

UI-TARS 7B does not list tool (function) calling support. It accepts image, text input.

How does UI-TARS 7B score on benchmarks?

LiveBench has not published a run for UI-TARS 7B yet. Until it does, compare it on price and specs, or run your own evaluation on your own tasks.

What is the API model ID for UI-TARS 7B ?

On OpenRouter the model ID is "bytedance/ui-tars-1.5-7b". It was listed on Jul 22, 2025.

How these numbers are produced

  • Price and specs — provider list data from OpenRouter, refreshed every 15 minutes. “Blended” is a 3:1 input:output mix.
  • Scores and ranksLiveBench release 2026-06-25. Ranks count only models that have a published run; a blank means “not evaluated”, never “bad”.
  • Cost per point — the measured dollars LiveBench spent on the run, divided by the score it earned.

Published benchmarks rank models on someone else's tasks. Before committing, see LLM & agent evaluation for building an eval on your own.