Expired90% confidenceFactTime unknown
Codex CLI uses OpenAI's o4-mini model by default, while also supporting switching to other models through configuration.
1
Sources
90%
Confidence
Medium-term (~90 days)
Relevance
6/1/2026
First Seen
Valid until: 8/30/2026(expired)
Sources
Codex CLI 0.128.0发布：/goal命令实现自动循环直到目标完成
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VerifiedCodex CLI is a command-line programming assistant tool launched by OpenAI, built on the GPT-4 series of models.77% similarUnverifiedCodex App uses the o3 model by default, with the option to switch to o4-mini and other model sizes.76% similarUnverifiedCodex internally calls OpenAI's latest reasoning models (such as o3/o4-mini), which have been specially optimized for code understanding and logical reasoning.75% similar
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