codex - 💡(How to fix) Fix There is no option to change the coding/executor model within the Plan Mode approval selector. [1 comments, 2 participants]

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openai/codex#18406Fetched 2026-04-18 05:54:52
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What variant of Codex are you using?

CLI

What feature would you like to see?

When using plan mode in Codex CLI, after a plan is generated and ready for approval/execution, I sometimes realize the coding/executor model is still set to a weaker model from a previous task.

Currently, to change only the coding model, I have to exit the plan flow, which disrupts the plan state. Then I need to restate or regenerate the same plan just to execute it with a different model. If regenerated, the plan often drifts.

The approved/generated plan should remain intact while allowing the executor model to be changed before running, within the "Proceed with this plan / Stay in Plan Mode" selector.

Additional information

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extent analysis

TL;DR

Modify the Codex CLI to allow changing the executor model without exiting the plan flow.

Guidance

  • Identify the specific point in the plan mode where the executor model is set and see if it can be made configurable without disrupting the plan state.
  • Consider adding an option to the "Proceed with this plan / Stay in Plan Mode" selector to change the executor model before execution.
  • Investigate if there's an existing API or command that can be used to update the executor model without regenerating the plan.
  • Review the plan regeneration logic to understand why the plan often drifts when regenerated, to prevent unintended changes.

Notes

The solution may require changes to the Codex CLI codebase, and the feasibility of the proposed modifications depends on the internal implementation of the plan mode and executor model selection.

Recommendation

Apply workaround: Modify the Codex CLI to add an option to change the executor model before execution, as this seems to be the most direct way to address the issue without requiring a full rewrite of the plan mode logic.

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codex - 💡(How to fix) Fix There is no option to change the coding/executor model within the Plan Mode approval selector. [1 comments, 2 participants]