Benchmark vs Real-World Coding: Why SWE-Bench Scores Lie to Developers
Claude Opus 4.5 owns the SWE-Bench leaderboard at 80.9%, but Reddit developers report Gemini 3 Pro solves their production bugs faster — and GPT-5.2 costs one-sixth as much at scale. The gap between benchmark vs real-world coding performance is not a rounding error. It is a structural problem: SWE-Bench tests public GitHub issues with predictable,