S Stealth OpenAI Anthropic Head to head on 21 boards: Anthropic places best on 13 , OpenAI places best on 8 and Stealth places best on 0 . All 3 ranked on 2 of 26 boards.
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S Stealth OpenAI Anthropic Board Read S Stealth OpenAI Anthropic 2 MultiChallenge Score 1d yesterday Nov 11 1d yesterday #1 82.0% best of the picked GPT-6.1 Sol #10 67.7% Claude Haiku 5.5 Text Arena Arena rating 1d yesterday Nov 11 1d yesterday #19 1,485 GPT-5.6 Sol #4 1,506 best of the picked Claude Opus 5.5 7 LiveBench Global average 1d yesterday Nov 11 1d yesterday #54 69.2% ox-alpha-max #4 82.2% GPT-6 Astra #1 83.4% best of the picked Claude Fable 5.1 AA Intelligence Index 1d yesterday Nov 11 1d yesterday #4 56.9 GPT-6 Astra #1 64.6 best of the picked Claude Fable 5.2 HLE Accuracy 1d yesterday Nov 11 1d yesterday #1 54.8% best of the picked GPT-6 Astra #2 46.5% Claude Fable 5.1 Epoch ECI ECI 1d yesterday Nov 11 1d yesterday #2 169.2 GPT-6 Astra #1 174.2 best of the picked Claude Fable 5.2 ARC-AGI-2 Score 1d yesterday Nov 11 1d yesterday #1 95.0% best of the picked GPT-6 Astra #4 93.8% Claude Fable 5.2 GPQA Diamond Accuracy 1d yesterday Nov 11 1d yesterday #3 95.8% best of the picked GPT-6 Astra #4 95.6% Claude Sonnet 5.5 MMLU-Pro Accuracy · stale 1d yesterday Nov 11 1d yesterday #3 89.3% best of the picked o1 #4 89.1% Claude Opus 4.6 4 WebDev Arena Arena rating 1d yesterday Nov 11 1d yesterday #5 1,764 GPT-6 Astra #1 1,836 best of the picked Claude Fable 5.2 SWE-Bench Pro Resolved 1d yesterday Nov 11 1d yesterday #4 90.2% GPT-6 Astra #1 98.0% best of the picked Claude Opus 5 SWE-bench Verified Resolved · stale 1d yesterday Nov 11 1d yesterday #6 72.8% GPT-5.2 #1 76.8% best of the picked Claude Opus 4.5 Aider Polyglot Pass rate · stale 1d yesterday Nov 11 1d yesterday #1 88.0% best of the picked GPT-5 #10 72.0% Claude Opus 4 3 BFCL Overall accuracy · stale 1d yesterday Nov 11 1d yesterday #7 63.0% o3 #1 77.5% best of the picked Claude Opus 4.5 Search Arena Arena rating 1d yesterday Nov 11 1d yesterday #1 1,255 best of the picked GPT-5.6 Sol #5 1,229 Claude Fable 5 MCP Atlas Pass rate 1d yesterday Nov 11 1d yesterday #14 81.8% GPT-5.6 #3 87.2% best of the picked Claude Fable 5.1 2 Vision Arena Arena rating 1d yesterday Nov 11 1d yesterday #10 1,293 GPT-6.1 Sol #1 1,309 best of the picked Claude Fable 5 Document Arena Arena rating 1d yesterday Nov 11 1d yesterday #5 1,486 GPT-5.6 Sol #1 1,500 best of the picked Claude Fable 5 2 Text-to-Image Arena rating 1d yesterday Nov 11 1d yesterday #1 1,429 GPT Image 2.5 Sunburst Image Edit Arena rating 1d yesterday Nov 11 1d yesterday #1 1,520 GPT Image 2.5 Sunburst 1 Text-to-Video Arena rating 1d yesterday Nov 11 1d yesterday #13 1,367 Sora 2 Pro 2 Open ASR Average WER 1d yesterday Nov 11 1d yesterday #19 6.80 WER gpt-transcribe (openai) Speech Arena Arena rating 1d yesterday Nov 11 1d yesterday #41 1,106 TTS 1 Hd 1 AA Speed Output speed 1d yesterday Nov 11 1d yesterday #16 23 tok/s GPT-6 Astra #4 44 tok/s best of the picked Claude Fable 5.2 1 AA Price Blended price 1d yesterday Nov 11 1d yesterday #7 $2.00 GPT-6.1 Terra #1 $0.20 best of the picked Claude Haiku 5.5 1 OpenRouter Weekly tokens 1d yesterday Nov 11 1d yesterday #7 5.1T tok Crouton Alpha #4 7.0T tok best of the picked GPT-6 Luna #6 6.8T tok Claude Opus 5.5
Green marks the best placing among the picked where two or more are ranked; ties are marked for each. Ranks are each board's own order (lower is better), scores as the board published them. Dash: not on that board.
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