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ByteDance: UI-TARS 7B

Source description (English)

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...

Overview

Model specifications

Context
128,000 tokens
Maximum output
2,048 tokens
Architecture
text+image->text
Tokenizer
Other
Knowledge cutoff
2025-01-31
Moderated
No
OPENROUTER

Complete pricing

Synchronized OpenRouter rates. Token prices are shown per one million tokens.

Input
$0.1
per 1M tokens
Output
$0.2
per 1M tokens
Cache read
$0.1
per 1M tokens
API

Quick start

Set OPENROUTER_API_KEY locally. Python requires requests; JavaScript runs in Node.js. Keep the key on the server.

API documentation

curl --fail-with-body https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"bytedance/ui-tars-1.5-7b","messages":[{"role":"user","content":"Hello!"}]}'
Capabilities

InputOutput

Input
imagetext
Output
text
API

Supported API parameters

frequency_penaltylogit_biaslogprobsmax_tokenspresence_penaltyrepetition_penaltyseedstopstructured_outputstemperaturetop_ktop_logprobstop_p
Available providers

1 Provider

Checked: September 7, 2026

Live providers on OpenRouter

Provider availability, latency, throughput and routing can change continuously. Open the source page for current operational data.

OpenRouter

Parasail

bf16
Context
128K
Maximum output
2K
Input
$0.1
Output
$0.2
Cache read
$0.1
Cache write
Not provided
bytedance

4 models

All models
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ByteDance: Seedance 2.0 Mini

Seedance 2.0 Mini is a video generation model from ByteDance. It supports text-to-video, image-to-video with first and last frame control, and multimodal reference-to-video with image, video, and audio inputs. It...

Context
Not provided
Input
text · image · video · audio
Output
video
Video (with audio): $0.0302 per secondVideo (no audio): $0.0302 per second
View model details
bytedance logobytedance

ByteDance: Seedance 2.5

Seedance 2.5 is a video generation model from ByteDance. It is suited for long-form storytelling, multimodal reference-based generation, video editing, and video extension. It supports first-frame and first-and-last-frame control, up...

Context
Not provided
Input
text · image · video · audio
Output
video
Video (with audio): $0.2311 per secondVideo (no audio): $0.2311 per second
View model details
bytedance logobytedance

ByteDance: Seedance 2.0

Seedance 2.0 is a video generation model from ByteDance. It supports text-to-video, image-to-video with first and last frame control, and multimodal reference-to-video. It is particularly strong at preserving character consistency,...

Context
Not provided
Input
text · image · video · audio
Output
video
Video (with audio): $0.1512 per secondVideo (no audio): $0.1512 per second
View model details
bytedance logobytedance

ByteDance: Seedance 2.0 Fast

Seedance 2.0 Fast is a video generation model from ByteDance. It supports text-to-video, image-to-video with first and last frame control, and multimodal reference-to-video. It prioritizes generation speed and lower cost...

Context
Not provided
Input
text · image · video · audio
Output
video
Video (with audio): $0.0907 per secondVideo (no audio): $0.0907 per second
View model details