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Description
Claude Fable 5 is Anthropic's Mythos-class reasoning model, built for autonomous knowledge work and complex coding tasks with support for text, image, and file inputs.
OpenAI's frontier model for complex professional workloads. 1M token context, text + image input, native computer use.
I/O price /1M
$5.00/$25.00
$5.00/$30.00
Input /1M
$5.00
$5.00
Output /1M
$25.00
$30.00
Cached in /1M
$0.5
$0.5
Context
1M
1M
Δ input since launch
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—
Δ output since launch
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Released
Jun 2026
Apr 2026
Status
—
—
Provider
Anthropic
OpenAI