DeepSWE v1.1 Leaderboard 2026: AI Models Ranked by Long-Horizon Engineering
Interactive DeepSWE v1.1 leaderboard updated with Muse Spark 1.3 at 75.4%, GPT-6 Astra at 74.1%, and Claude Fable 5.1 at 67.4%. 28+ models ranked by long-horizon software engineering ability. Updated September 2026.
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· Abdeladim Fadheli