Claude Fable 5.1
Claude model for demanding reasoning and long-horizon agentic work
Context
1,000,000
Max output
128,000
Input / 1M
$10.00
Output / 1M
$50.00
Providers
25
01Profile
Profile
Released
2026-09-01
Last updated
2026-09-01
Knowledge cutoff
2026-06
Weights
Closed
02Capabilities
Capabilities
Input
text · image · pdf
Output
text
Reasoning
Yes
Tool calling
Yes
Structured output
Yes
Attachments
Yes
Cache read
$0.25
Cache write
$12.50
03Pricing
Pricing across 29 providers
Per 1M tokens, USD. Sorted by input price. First-party row highlighted.
04History
Change history
12+ recent events since 2026-09-01
2026-09-10Addedllmgateway-providersoffering→ new
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