We gave 6 AI coding CLIs the same concurrency bug and 6 hidden tests. All six passed. The diffs did not agree.
This story is from 2026-11-05. It is preserved in the archive; the latest stories are on the live feed.
Arguments about which AI coding CLI is "best" usually rest on vibes or on synthetic leaderboards. So we took one small, real-shaped concurrency bug, gave it to six CLIs with the same prompt, and graded each fix with tests the CLIs never saw. All six fixed it. That's the first result, and it limits…
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- 2026-11-05 13:35 · DEV Community — AI
We gave 6 AI coding CLIs the same concurrency bug and 6 hidden tests. All six passed. The diffs did not agree.