Unverified50% confidenceFactExact time
Opus 5.5 cache reads are 5% of the base input price, Haiku 5.5 is 10%, and Fable 5.1 is 2.5%.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
10/14/2026
First Seen
Valid until: 10/28/2026
Sources
Related Entities
Related Claims
UnverifiedClaude Fable 5.1 launched with a cache price of 2.5%, Claude Opus 5.5 and GPT-6.1 Sol both at 5%, and by October 7 Anthropic also halved the Sonnet 5.5 cache price to 5%.72% similarUnverifiedOpus 5.5 has already reached the level of the previous flagship Faber 5.1 on most tasks.69% similarUnverifiedOpus 5.5 is less token-efficient than Opus 5: Opus 5's max tier uses 73k tokens per task, Fable uses 78k, Opus 5.5's max tier approaches 120k tokens, while GPT-6 Astra only requires 27k.68% similarUnverifiedOn Terminal-Bench 4.0, Haiku 5.5 scores 39.2% versus Opus 5.5's 70.6%.68% similarVerifiedOn Terminal Bench 4.0, Opus 5.5 scored 66.4%, Astra scored 57.9%, Fable 5.1 scored 55.8%, and the previous generation Opus 5 scored 52.3%.66% similar
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