Unverified50% confidenceBenchmarkExact time
Claude Sonnet 5 had a rock-paper-scissors win rate of only 33.3% under the neutral control condition, but its win rate surged to 86.1% under persuasion and deception conditions (31 wins and 5 draws out of 36 rounds).
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/12/2026
First Seen
Valid until: 1/10/2027
Sources
Related Entities
Related Claims
UnverifiedThe Tiny AI Arena leaderboard shows Claude Sonnet 5 leading with a 43% win rate across 21 matches, followed closely by Fable 5.1 with a 32% win rate and an average rank of 1.88.79% similarUnverifiedClaude Sonnet 5.5 had a fidelity rate of 93.2% and Claude Haiku 5.5 had a fidelity rate of 94.6%, with the smaller model performing better.73% similar
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