UI-TARS 7B

by ByteDance SeedChat

Multimodal model for analyzing text, images, documents, and rich media

Context
128K tokens
Max output
2,048 tokens
Parameters
8.3B total
Released
2025-07-22
Weights
Open
Licence
apache-2.0

Weights on Hugging Face

bytedance-seed/ui-tars-1-5-7b · also seen as bytedance/ui-tars-1.5-7b

Specifications

Full facts as recorded, incl. what is unknown.

Released
2025-07-22
Weights
Opennot gated
License
apache-2.0
Input
Image, Text
Output
Text
Context window
128,000 max across endpoints
Max output
2,048
Providers
1 + 2 gateways, not counted as providers
Epoch Capabilities Index
not evaluated
Direct price range
$0.10 in · $0.20 out per 1M tokens · from its one provider
More details
Last updated
2025-07-22
Knowledge cutoff
2025-01-31
Weights link
Hugging Face · ByteDance-Seed/UI-TARS-1.5-7B
Parameters
8.3B total

Capabilities

Across all endpoints: supported if any endpoint supports it.

  • Tool calling
  • Parallel toolsunknown
  • Structured output
  • Reasoning
  • Image input
  • PDF input
  • Audio input
  • Audio outputunknown
  • Video input
  • Prompt caching
  • Web searchunknown
  • Computer useunknown
  • System messagesunknown
  • Assistant prefillunknown
  • Temperature
  • Streamingunknown
  • Attachments

Endpoints

One row per provider and variant; gateways are listed separately.

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Price history

No change since 19 Oct 2026. The cheapest direct price has been $0.10 in / $0.20 out per 1M tokens at Parasail on every data refresh since then.

Tracked from 19 Oct 2026. Headline-eligible direct prices only, so a price the sanity check flags never draws a spike. Series as JSON

Cost calculator

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Blended rate per 1M tokens, each at its own cheapest provider (10M input : 2M output mix).

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Heads up: prices are indicative list rates scraped from provider pricing pages; verify with the provider before relying on them. Report incorrect data for this model