Anthropic: Claude Fable 5.1
Vendor: anthropic|
claude-fable-5-1Modalities
TextImagesText
Model multiplier
×8
Context
200K
Released
Sep 10, 2026
Overview
An update to Claude Fable 5 from Anthropic: the top price tier . Improved reasoning, coding and long agentic chains.
Context
200K
Max output
64,000
Released
Sep 10, 2026
Step-by-step reasoning
Yes
NewTop tier
Consumption multiplier
The model coefficient is a usage multiplier. Actual reference-token deductions are available in request logs.
Model multiplier
×8
Performance
Gateway metrics for the last 24 hours.
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FAQ
Are there any rate limits?
The default limit is request rate per key. Each key can be restricted by models, spend and IP in your dashboard.
How is billing calculated?
Usage is deducted per request, accounting for model, output and cache coefficients. The final reference-token usage is available in request logs.
Is streaming supported?
Yes, stream: true behaves exactly like in the OpenAI API — tokens arrive as they are generated.