Claude Fable 5.1 vs UI-TARS 7B : side-by-side summary

Claude Fable 5.1 and UI-TARS 7B are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Claude Fable 5.1, from Anthropic, has a 1,000,000-token context window and is priced at $10/M tokens input, $50/M tokens output on OpenRouter.

UI-TARS 7B , from bytedance, has a 128,000-token context window and is priced at $0.10/M tokens input, $0.20/M tokens output on OpenRouter.

Context window

• Claude Fable 5.1: 1,000,000 tokens
• UI-TARS 7B : 128,000 tokens

Price

• Claude Fable 5.1: $10/M tokens input, $50/M tokens output
• UI-TARS 7B : $0.10/M tokens input, $0.20/M tokens output

Provided by

• Claude Fable 5.1: Anthropic
• UI-TARS 7B : bytedance

• Claude Fable 5.1 model details, providers and pricing
• UI-TARS 7B model details, providers and pricing