Code Arena WebDev: Astra ranks first but loses head-to-head to Fable 5.1
Astra tops the Code Arena WebDev leaderboard with 1800 points and wins 72.5% against GPT-5.6 Sol, yet in direct matchups with Fable 5.1 it trails, 29.0% to 43.5%.
In the Code Arena: WebDev, @OpenAI's GPT-6 Astra (Max) is ranked #1 (1800 pts), and Claude Fable 5.1 (Max) is ranked #2 (1758 pts). Here is a look at win rates for these models. Win rate measures how often people prefer one model’s response in Arena’s anonymous head-to-head battles. Against the other models shown, Astra clearly wins most battles, including 72.5% against GPT-5.6 Sol (xHigh). @AnthropicAI's Claude Fable 5.1 is the exception. Fable 5.1 wins 43.5% of battles, Astra wins 29.0%, and 27.4% of battles between them end in ties. Despite Astra's #1 ranking, Fable 5.1 is the preferred model when their outputs are compared head-to-head by Arena's users.