Unverified50% confidenceFactExact time
Above Opus 5.5 there is a fourth model, Fable 5.1, priced at 10.5 dollars for output, aimed at the most demanding reasoning needs.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
10/12/2026
First Seen
Valid until: 10/26/2026
Sources
Related Entities
Related Claims
VerifiedAccounting for real usage scenarios, the actual cost advantage of Opus 5 over Fable is approximately 20% to 25%, with Fable costing about $2.75 per task and Opus 5 about $2.03.72% similarUnverifiedOut of cost considerations, the author chose to have Fable delegate most tasks to the relatively economical Opus 5.0 for execution.69% similarUnverifiedAnthropic released its top flagship Fable 5.1 on September 1, also priced at $10/$50, and it was comprehensively outperformed by the subsequently released Opus 5.5.69% similar
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