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anthropicAnthropic: Claude Fable 5
Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding. It supports text, image, and file inputs with text output, with reasoning support and...
anthropic/claude-fable-5
Context Size
1,000K
Input Price
1,500,000 pts/M
Output Price
7,500,000 pts/M
Architecture
Text
Image
File
Supported Parameters
include_reasoningmax_completion_tokensmax_tokensreasoningresponse_formatstopstructured_outputstool_choicetoolsverbosity
Details
TokenizerClaude
Max Completion128,000 tokens
Provider Context1,000K tokens
ModeratedYes
CreatedJun 9, 2026