Models›ByteDance›UI-TARS 7B

UI-TARS 7B

by ByteDance · released Jul 22, 2025 · 1 provider
Model IDbytedance/ui-tars-1.5-7b
Free plan eligibleVisionStructured outputsOpen weights · Apache 2.0

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 PRICING

Standard pricing

Run this model at its standard rate. Cheap mode currently has no separate discount.

Input tokens$0.105per 1 million tokens
Output tokens$0.21per 1 million tokens

API routing ceilings, including your 5% Free-plan fee. Included usage applies first, then prepaid credits. Cached tokens and tools can have separate charges.

Looking for lower rates? Browse models with verified discounts →
Context
128k
tokens
Max output
2k
tokens per reply
Input
$0.1
provider baseline / 1M; fee applies
Output
$0.2
provider baseline / 1M; fee applies

Choose how to use UI-TARS 7B

Playground

Try prompts in your browser, create an agent, and see the cost of each reply. Your selected model carries into setup.

Model capabilities below describe the underlying model. Available playground features depend on its provider.

API

Connect your app with a Gizmo API key. Choose fastest or cheapest, stream text responses, and inspect timing, tokens, and charges in request logs.

A current API route is listed for this exact model. Gateway configuration is required for live calls.

Provider price + a transparent platform fee

RateProvider baselineFree plan · 5% feePaid plan · 4% fee
Input / 1M tokens$0.1$0.105$0.104
Output / 1M tokens$0.2$0.21$0.208
API input / 1M tokens$0.1$0.105$0.104
API output / 1M tokens$0.2$0.21$0.208

Legacy chat image rates use the catalog baseline. The dedicated image playground shows separate estimates and settles the provider’s metered usage. API rates are current routing ceilings; final API charges use provider-reported cost plus your fee. Cheapest routing compares eligible OpenRouter and Cheaper Inference rates for the same model; savings are not guaranteed. Cached input or other provider charges may differ. Compare all model rates and verified discounts →

How your plan pays for usage

API and playground share one included allowance. Usage including the fee draws from that allowance first, then your prepaid credits. Plans bill monthly; included usage resets weekly: Free $1, Starter $5, Growth $25, Scale $50.

A $1 provider charge becomes $1.05 on Free or $1.04 on a paid plan before included usage is applied. Plan eligibility still applies in the playground.

Free models and limits

Zero-cost models stay $0, including the fee, and do not consume your dollar allowance. Free accounts can make 1,000 free-model API requests per calendar month, resetting in UTC. Admitted requests count even if the provider fails.

Free includes 20 API requests/minute and 6 playground messages/minute. Paid plans raise these limits. See plan limits.

Before a text API request, Gizmo temporarily reserves included usage and, if necessary, prepaid credit for the model’s full context plus your maximum output. Image jobs reserve twice their displayed estimate. Unused funds return after metering. This hold can exceed the final charge; unconfirmed usage remains marked pending.

Overview

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 learning-based reasoning, enabling robust action planning and execution across virtual interfaces.

This model achieves state-of-the-art results on a range of interactive and grounding benchmarks, including OSworld, WebVoyager, AndroidWorld, and ScreenSpot. It also demonstrates perfect task completion across diverse Poki games and outperforms prior models in Minecraft agent tasks. UI-TARS-1.5 supports thought decomposition during inference and shows strong scaling across variants, with the 1.5 version notably exceeding the performance of earlier 72B and 7B checkpoints.

Benchmarks

Performance from the model card

Benchmark typeBenchmarkUI-TARS-1.5OpenAI CUAClaude 3.7Previous SOTA
Computer UseOSworld (100 steps)42.536.42838.1 (200 step)
Windows Agent Arena (50 steps)42.1--29.8
Browser UseWebVoyager84.88784.187
Online-Mind2web75.87162.971
Phone UseAndroid World64.2--59.5

Performance from the model card

BenchmarkUI-TARS-1.5OpenAI CUAClaude 3.7Previous SOTA
ScreensSpot-V294.287.987.691.6
ScreenSpotPro61.623.427.743.6

Model Scale Comparison from the model card

Benchmark TypeBenchmarkUI-TARS-72B-DPOUI-TARS-1.5-7BUI-TARS-1.5
Computer UseOSWorld24.627.542.5
GUI GroundingScreenSpotPro38.149.661.6

Capabilities

Input
🖼️ Images✍️ Text
Output
✍️ Text
✓ Structured outputs✓ Seeded sampling✓ Log probabilities✓ Stop sequences✓ Logit bias

Sampling controls: temperature, top_p, top_k, max_tokens, frequency_penalty, presence_penalty, repetition_penalty.

Pricing on Gizmo

These are provider baseline rates before Gizmo’s 5% Free-plan or 4% paid-plan fee. Your included usage covers charges first; overage uses prepaid credits. See the fee-inclusive comparison above.

Provider baseline rates

Input
$0.1 / 1M
Cached input
$0.1 / 1M
Output
$0.2 / 1M

Examples before the platform fee

Typical chat turn
$0.0003 2k in · 500 out
$1 of input
≈ 1M tokens
$1 of output
≈ 5M tokens
Full context, once
$0.0128
Free plan eligible. This model sits at or below the free tier’s price ceiling: $1 of usage covered every week, no card needed. Paid plans cover $5 to $50 weekly and add $25 in bonus credits.

Providers and pricing

One way to run UI-TARS 7B on Gizmo.

ProviderRouteInput / 1MOutput / 1MContextUptime 24h
Parasail · bf16Lowest priceOpenRouter$0.1$0.20128k100%

Rates are each provider’s, per million tokens, before Gizmo’s 5% (Free) or 4% (paid) fee. “Cheapest” routing starts at the top of this list; “Fastest” starts with the model’s maker.

Run UI-TARS 7B in under a minute

1

Create your account

Sign up with just an email. Start on the free tier with no card, or pick a paid plan for a bigger weekly allowance and $25 in bonus credits.

2

Your agent is ready

UI-TARS 7B is preselected as the brain of your first agent. Give it a name and a system prompt, or keep the defaults.

3

Chat, research, create

Live web research and image generation are built in. Every reply shows what it cost, and you can switch models anytime.

Sources. OpenRouter · Hugging Face · ByteDance documentation. Verified Sep 9, 2026. Baseline prices are the provider’s list prices at sync time. Gizmo adds a 5% fee on Free or 4% on paid plans; included usage is applied before overage credits.