Expired50% confidenceBenchmarkExact time
On long-horizon programming tasks such as the Frontier Code benchmark, Opus 5.5 may slightly outperform Astra
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
10/4/2026
First Seen
This claim has expired. It is kept for the record and no longer describes the current state.
Valid until: 10/18/2026(expired)
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Related Claims
UnverifiedOn the Frontier Code programming benchmark, Opus 5.5 beat Astra using the default tier, with a per-task cost of only one-fifth that of its competitor.75% similarUnverifiedIn that OZ world recreation test, Astra had the best overall impression, Opus 5.5 had the most detail, and Sol 6.1 noticeably fell behind.68% 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.66% similarUnverifiedA Twitter user expressed a preference for Opus 5.5 over Astra, but a preference for the Codex app over the Claude app.65% similarUnverifiedOn deep code review tasks, Grok 4.7 and Sol outperform Opus and Fable, but Opus's improvement on that bench from 5 to 5.5 is close to doubling.65% similar
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