Expired50% confidenceFactExact time
In a component-splitting task involving a file of over 2,000 lines of code, GPT-5.2 Codex took approximately half an hour and still had minor bugs after completion.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
Related Claims
UnverifiedA developer used GPT-5.5 to complete a complex code merge in 20 minutes that previously required several hours.81% similarUnverifiedGPT 5.5 took approximately 15 minutes to complete code modifications via the Codex plugin, noticeably slower than GLM-5.1 and DeepSeek V4 Pro.72% similarUnverifiedAfter approximately 40 minutes of total compute time, GPT-5.1 Pro ultimately correctly solved the Smuggler's Manifest cipher puzzle, with the answer being 'WALLET PICKER'.71% similarUnverifiedApproximately half of the GPT-5 launch event, which lasted over an hour, was devoted to introducing content related to Coding.71% similarUnverifiedA reviewer named Evand retested Codex for two weeks using GPT 5.5 and concluded that Codex is already in the same tier as Claude Code on many tasks, and is faster and more accurate in certain scenarios.69% similar
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