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OpenAI finds 30% of popular AI coding benchmark is broken

OpenAI has identified significant issues with SWE-Bench Pro, a popular benchmark used to evaluate AI coding capabilities. The company discovered that approximately 30 percent of the tasks within the benchmark are flawed, leading OpenAI to retract its previous endorsement of the test. This finding raises questions about the reliability of current AI coding assessments. AI

IMPACT Raises concerns about the reliability of current AI coding benchmarks and the validity of past performance evaluations.

RANK_REASON OpenAI's internal review of a widely used AI benchmark identified significant flaws. [lever_c_demoted from research: ic=1 ai=1.0]

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OpenAI finds 30% of popular AI coding benchmark is broken

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  1. The Decoder TIER_1 English(EN) · Maximilian Schreiner ·

    OpenAI finds roughly 30 percent of popular AI coding test is broken

    <p><img alt="" class="attachment-full size-full wp-post-image" height="768" src="https://the-decoder.com/wp-content/uploads/2026/07/openai_logo_vis-1.png" style="height: auto; margin-bottom: 10px;" width="1376" /></p> <p> OpenAI reviewed SWE-Bench Pro, a widely used test for meas…