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Mercor @mercor · 01 Sep 2026

Claude Fable 5.1 debuts as the new leader on APEX-Agents and #2 on APEX-SWE. APEX-Agents: 🥇62.0% Mean score (#1) 🥇47.5% Pass@1 (#1) APEX-SWE: 🥈63.6% Pass@1 (#2) Congratulations to @AnthropicAI @claudeai. https://t.co/Gkj3cWgkTQ
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