Verified70% confidenceBenchmarkExact time
Claude Opus 5.5 generates output more than 30% faster than Opus 5.
4
Sources
70%
Confidence
Medium-term (~90 days)
Relevance
9/22/2026
First Seen
Valid until: 12/21/2026
Sources
Related Entities
Related Claims
UnverifiedThe previous-generation Claude OPUS had a success rate of only 1.4% on a certain high-difficulty leaderboard, whereas Fable 5 reached approximately 30%, an improvement of more than 20 times.76% similarUnverifiedOpus 5 achieved a 26% pass rate on the enterprise automation benchmark, higher than Fable's 17.4%.74% similar
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