Unverified50% confidenceBenchmarkExact time
Opus 5.5 is not first across the board: on Automation Bench it scored 40, slightly below Astra's 41.4, and on Terminal Bench Science it trails GPT-6 Astra.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
9/25/2026
First Seen
Valid until: 12/24/2026
Sources
Related Entities
Related Claims
UnverifiedOn 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%.75% 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.72% similarUnverifiedIn the Terminal Bench 2.1 test, GPT-5.6 Ultra scored close to 92%, Fable 5 scored 88%, which are essentially on par considering the margin of error.65% similarUnverifiedIn the Automation Bench test, GPT-6 Sol's extra high tier achieved first place 33% of the time, while 5.6's max effort scored 28.8.65% similarUnverifiedOpus 5在Frontier-Bench上的表现超过Opus 4.8的两倍63% similar
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