OpenAI finds roughly 30 percent of popular AI coding test is broken
OpenAI reviewed the SWE-Bench Pro benchmark and found about 30% of its tasks are broken, prompting the company to withdraw its endorsement.

- OpenAI identified that about 30% of SWE-Bench Pro tasks are broken.
- The company has withdrawn its endorsement of the benchmark.
- Reliability of AI coding evaluations may need tighter quality controls.
- Developers and researchers should reassess reliance on SWE-Bench Pro for model assessment.
OpenAI conducted an internal review of SWE-Bench Pro, a benchmark that many researchers and developers use to measure the programming abilities of AI models.
The review uncovered that roughly 30 percent of the benchmark's tasks contain errors or are otherwise broken, calling into question the reliability of the results it produces.
Because of these findings, OpenAI is removing its previous endorsement of SWE-Bench Pro and advising the community to treat the benchmark with caution.
The episode underscores the difficulty of keeping evaluation datasets accurate as AI systems become more capable and the field matures.
A flawed benchmark can mislead developers about model performance.
Accurate evaluation tools are essential for product decisions involving AI coding assistants.
Benchmark credibility affects confidence in AI startups that claim coding prowess.
Learning resources that use the benchmark may need to update their curricula.
- SWE-Bench Pro
- A benchmark suite for testing AI models' software engineering and coding abilities.
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