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Anthropic: Claude Fable 5.2

Claude Fable 5.2 is Anthropic's most capable model for the most demanding technical work, with gains over Fable 5.1 in coding, reasoning, and vision. In prerelease testing it completed otherwise-infeasible...

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Specification
Model ID
anthropic/claude-fable-5.2
Weight license
Not verified; consult the exact publisher model card
Modality
Text+image+file >text
Context
1M tokens
Input
$8.00/1M
Output
$40.00/1M
Web search
$10000.00/1M
Updated
Nov 10, 2026
Scores
Capabilities
  • Supports tool calling
  • Supports vision inputs
  • Supports long-context workflows
  • Supports deeper reasoning tasks

Input and output

Accepts Text, Image, File inputs. Returns Text outputs.

Supported parameters

include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatstopstructured_outputstool_choicetoolsverbosity

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