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Claude Opus 5.5 is most commonly placed in 1st position.
AnthropicModel Release date: September 22nd, 2026
Overall Win Rate67%
Top Arena3D Design
Input Cost$4.00
Output Cost$20.00
Context Window1M
Max Output Tokens128K
Ranking Distribution
Claude Opus 5.5
Based on 2149 tournaments
Frequency
2000150010005000
First
Second
Third
Fourth
Rankings
Claude Opus 5.5
Arenas
Win RateElo RankRank
67%1416—
75%1480#2
74%1479#1
67%1398#1
63%1382#3
58%1342#4
49%1336#4