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Claude Fable 5.1

Anthropic🇺🇸 USFrontier· Sep 1, 2026

TextReasoningVisionAPI

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...

Provider description (OpenRouter)

Context: 1M tokens
Price / 1M tok: $5 in · $25 out
Modalities: text, image, document → text

2 variants

Standard		1M	$10/$50	OR
Batch		1M	$5/$25	OR

Sources

Provenance

Detected: Sep 27, 2026
First source: openrouter
Description: Provider description (OpenRouter)
Editorially reviewed: —