Models / Anthropic
Claude Fable 5
by Anthropic ·
anthropic/claude-fable-5Claude 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...
reasoningtool-usevisionreleased 2026-06-09
Legal score · raw
-
not yet benchmarked
Context
1M
max output 128K
Input
$12.50
per 1M tokens
Output
$62.50
per 1M tokens
Suite cost
-
no run recorded
Prompt caching
Grounded answers re-send the same retrieved authority every turn, so a cached read is what a long matter actually costs. Prices are per 1M tokens, from the provider’s own catalog.
Cache read
$1.25
10x cheaper than uncached
Cache write
$15.63
per 1M tokens, charged once
Uncached input
$12.50
per 1M tokens
Capabilities
Modalities
in textimagefile
out text
Request parameters it accepts
include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatstopstructured_outputstool_choicetoolsverbosity
Benchmark results
This model has not been run through the suite yet. See Humanity's Last Lawsuit for the benchmark models are ranked on.