Expired50% confidenceOpinionExact time
GPT-5.2 Codex has an extremely slow response speed at its highest thinking level, which is its biggest current weakness.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
Related Claims
UnverifiedGPT 5.6的Sol档存在明显的响应速度慢的问题79% similarUnverifiedGPT 5.6 has added an Ultra thinking tier; previously the maximum thinking intensity in Codex could only be set to Extra High.75% similarUnverifiedGPT-5.4's Codex has added a Fast mode, which increases speed by 1.5x but consumes double the quota.75% similarVerifiedOn complex tasks (top 10%), GPT-5 Codex uses more than twice the tokens to perform deeper reasoning.75% 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.74% similar
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