Expired60% confidenceFactExact time
In the same complex scientific research code project test, Codex's execution speed was several times slower than Claude Code.
2
Sources
60%
Confidence
Medium-term (~90 days)
Relevance
7/3/2026
First Seen
Valid until: 10/1/2026(expired)
Sources
Which AI Coding Tool Should You Choose? A Deep Dive Comparison of Four Leading Tools
bilibili申看小霜6/20/2026
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