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Claude Fable 5.1

anthropic/claude-fable-5.1

Current Pricing

Calculate Cost

Input ($/1M)

$10.00

Output ($/1M)

$50.00

Cache Read ($/1M)

$0.2500

Cache Write ($/1M)

$12.50

Web Search ($/call)

$0.0100

Last updated: Sep 2, 2026 · Source: openrouter_api

Specifications

Context Window

1M

Max Output

128K

Release Date

Sep 1, 2026

Modalities

textimagefile
Function Calling
Streaming
Batch
Structured Output