Text Generation Model
Claude 5.1 Fable
Text by Anthropic
Publisher
Anthropic
AnthropicTypeText
Context Window1,000,000 tokens
ReleasedSeptember 2026
Input$10.00/MTok
Output$50.00/MTok
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Documentation & links
Configuration
Parameters & options
Max Temperature1
Max Response Size128,000 tokens
EffortSelect
Controls reasoning depth. Higher effort improves quality but uses more tokens and is slower. Recommended: High for most tasks, Extra High or Max for the hardest coding and agentic work, Medium or Low for routine, latency-sensitive tasks.
ToolsTools
Web SearchAllow models to search the web for the latest information before generating a response.
MCP ServersMCP Servers
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