Unverified50% confidenceBenchmarkExact time
In a certain programming benchmark, OpenAI's GPT-5.5 scored 76% in the benchmark's built-in Harness, but only 57% within Codex internally.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/5/2026
First Seen
Valid until: 1/3/2027
Sources
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