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Matt Maher tested frontier models in Cursor v. other harnesses. Cursor boosted model performance by 11% on average:

Gemini: 52% → 57%
GPT-5.4: 82% → 88%
Opus: 77% → 93%

His benchmark measures how well models implement a 100-feature PRD. @cursor_ai consistently outperformed.

<p>Matt Maher tested frontier models in Cursor v. other harnesses. Cursor boosted model performance by 11% on average:

Gemini: 52% → 57%
GPT-5.4: 82% → 88%
Opus: 77% → 93%

His benchmark measures how well models implement a 100-feature PRD. @cursor_ai consistently outperformed.</p>

jason liu

Matt Maher tested frontier AI models in Cursor versus other coding harnesses, finding that Cursor boosted model performance by 11% on average across models including Gemini.