Unverified50% confidenceBenchmarkExact time
On Terminal Bench, Mythos 5.2, released the same day, narrowly beat Fable 5.2 with 75.3 points versus 74.6.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
11/9/2026
First Seen
Valid until: 11/23/2026
Sources
Related Entities
Related Claims
UnverifiedClaude Fable 5.1 scored 73.4 on CursiveBench 3.2.0 and comprehensively surpassed its predecessor on benchmarks including OS World 2.0.73% similarUnverifiedFable 5.1 scored 74/80 (92.5%) in the KingBench 3 small-scale test, which is 2 points higher than Astra.72% similarUnverifiedFable 5.2 scored 74.2 on the Humanity's Last Exam (HLE) benchmark, about 10 points higher than Fable 5.1.68% similar
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