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Anthropic: Claude Fable 5.1

Anthropic: Claude Fable 5.1 is anthropic's model. It is not yet scored on the meo first-party benchmark; aggregated third-party results and OpenRouter metadata are shown below.

Model details

Released
2026-09-01
Weights
—
Context
1M
Max output
128K
Knowledge cutoff
—
Price in
$10.00/M
Price out
$50.00/M
Modality
text+image+file->text

Sources: openrouter

FAQ

Is Anthropic: Claude Fable 5.1 open weights?

Open-weights status for Anthropic: Claude Fable 5.1 is not recorded.

Related: all Anthropic models · best Effective Value · biggest movers · methodology · full leaderboard.