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Anthropic: Claude Fable 5.1anthropic

Bottom Line

Anthropic: Claude Fable 5.1: $10.00/1M input, $50.00/1M output, 1.0M context, CPS grade B. Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work: long code refactors, front-end and visual...

API Pricing (per 1M tokens)

Input$10.00
Output$50.00
Cache Read—
Cache Write—
Blended (3:1)$20.00

Specs & Performance

Context Length1.0M
Max Output128K
Intelligence53
Coding82
Math—
Speed70 tok/s
TTFT130.62s
CPS GradeB
Input / Output Modalitiestext, image, file → text

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FAQ

How much does the Anthropic: Claude Fable 5.1 API cost?

Anthropic: Claude Fable 5.1 costs $10.00/1M input tokens and $50.00/1M output tokens. Blended cost at a 3:1 ratio is about $20.00/1M tokens.

What is the context window of Anthropic: Claude Fable 5.1?

Anthropic: Claude Fable 5.1 supports a 1.0M token context window with up to 128K output tokens.

Is Anthropic: Claude Fable 5.1 worth it?

Anthropic: Claude Fable 5.1 has a CPS grade of B (score 53), intelligence index 53, coding index 82. Use the compare page to benchmark against rivals.