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Anthropic

Claude Fable 5.1

Claude Fable 5.1 - Anthropic's frontier reasoner. Deep synthesis, long-horizon planning, sharper than Fable 5. 1M-token context.

MainstreamThe big labs' models with their own safety filters. Best for work, code and research.
Brilliant
Intelligence
~30.55 credits
Price per message
1M tokens
Context window
Text, Images
Reads

The facts

Made by
Anthropic
Content tier
MainstreamThe big labs' models with their own safety filters. Best for work, code and research.
Intelligence
Brilliant
Price per message
~30.55 credits≈ 3 messages for $1
Context window
1M tokens≈ 1,538 pages of text in one go
Reads
Text, Images
Writes
Text
Tool use
Yes - search, memory, code and more
Served via
OpenRouter, Unbottled AI
Status
Current

A typical message: 16K tokens in, 1.5K out. Short replies cost less. 1 credit = $0.01.

Try Claude Fable 5.1 now.

No subscription. Free credits to start. The chat opens with Claude Fable 5.1 selected and a prompt ready - just send.