FrontierCode 1.1 shows Opus 5 can score lower under stricter reasoning settings
andrew_n_carr · x · 2026-07-25
- A repost says Opus 5 actually scores lower on FrontierCode 1.1 when using xhigh and max reasoning settings.
- The poster’s investigation claims the benchmark’s scope metric penalizes Opus 5 for making changes that are unrelated to the task.
- The attached chart compares models on FrontierCode 1.1 Main with score vs. cost, showing Opus 5 near the top but not clearly dominant across all settings.
- The takeaway is that the headline benchmark number may be sensitive to rubric details, especially how “scope” is judged.
Related event: Opus 5 Coding Paradox: Higher Reasoning Leads to Lower Scores(13 posts)→
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