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The closest rivals to Claude Opus 5, then the top two on each kind of board.
- Claude Opus 5 vs GPT-6 AstraClose on shared boards
- Claude Opus 5 vs Claude Fable 5Close on shared boards
- Claude Opus 5 vs GPT-5.6 SolClose on shared boards
- Claude Opus 5.5 vs Claude Sonnet 5.5Top two on Artificial Analysis Intelligence Index
- Claude Fable 5.1 vs GPT-5.6 SolTop two on Artificial Analysis Coding Index
- Claude Opus 5.5 vs GPT-6 AstraTop two on Humanity's Last Exam
- GPT Image 2.5 Sunburst vs GPT Image 2.5 FlareTop two on Text-to-image arena
- Wan 3.0 vs MiniMax H3Top two on Text-to-video arena
- Eleven v4 Turbo vs Eleven v4Top two on Speech arena
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