GPT-6 Astra tops Code Arena WebDev leaderboard

Rohan Paul @rohanpaul_aiOriginally posted 2026.09.06

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GPT-6 Astra (Max) leads Code Arena: WebDev at 1,797, 35 points above Claude Fable 5.1 (Max). This benchmark tests web-app building: models need to plan with tools, build a live app, and users compare paired outputs. But more interestingly the huge gap GPT-6 Astra has with GPT-5.6 Sol (xHigh), its now at 180 points above GPT-5.6 Sol (xHigh), OpenAI's previous entry, which now ranks #13.

This post quotes another post: “GPT-6 Astra Max takes #1 on Code Arena with 1797 points”