Sun, Sep 13 04:07 PM

How to change reasoning effort in Codex CLI: model_reasoning_effort values and one-off overrides

Dev.to•Sun, Sep 13, 2026, 03:25 PM•2 min read

Originally published at https://aicoding-guide. com . Codex feels slow, or it overthinks a trivial fix.

Source: [Dev.to](https://dev.to/aicoding-guide/how-to-change-reasoning-effort-in-codex-cli-modelreasoningeffort-values-and-one-off-overrides-2bf4)

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