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Claude Fable 5.1

Also accepted:claude-fable-5-1claude-fable-5.1anthropic/claude-fable-5-1
Anthropic
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Anthropic's Claude Fable 5.1 is the successor to Claude Fable 5 for long-running agentic coding, knowledge work, and research. Same $10/$50 list rates as Fable 5, with cache reads at $0.25 per million tokens and a 1M-token context window.

Providers
Capabilities
Anthropic
anthropic-byok
$0
$0
$0
$0
Unavailable
AIHubMix
aihubmix-byok
$0
$0
—
—
Unavailable
OpenRouter
openrouter-byok
$0
$0
$0
—
Unavailable
Experiential
experiential-byok
$0
$0
—
—
Unavailable
Usage analytics

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API & code
Uptime & Health
No uptime data yet

These providers haven't been health-probed for this model yet. The router still routes around upstreams that fail live requests — uptime fills in once probe history accrues.

Share cards
Claude Fable 5.1 share card
Claude Fable 5.1
Anthropic upstream share card
Anthropic upstream
AIHubMix upstream share card
AIHubMix upstream
OpenRouter upstream share card
OpenRouter upstream
Experiential upstream share card
Experiential upstream
Credits
Use your own key

Run Claude Fable 5.1 on your own key — your requests are billed by the provider. Pool callers pay AnyRouter credits.

No BYOK keys configured for this model yet.

Share a key with the pool to earn credits for every request it serves, covering your plan cost.

Text generation
Context length1,000,000 tokens
Max output128,000 tokens
ArchitectureTransformer
Categorytext
ReleasedSep 1, 2026
Modalities
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Capabilities
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