remove gpt 5.4 pro

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📝 Summary

Too expensive of a model to support by default, avoid users from accidentally using it.
https://developers.openai.com/api/docs/pricing/

🔍 Description of Changes

📋 Checklist

• I have read the contributor guidelines.
• For large changes, or changes that affect the public API: this change was discussed or approved through an issue, on Discord, or the community discussions (Please provide a link if applicable).
• Tests have been added for the changes made.
• Documentation has been updated where applicable, including docstrings for API changes.
• Pull request title is a good summary of the changes - it will be used in the release notes.

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Project	Deployment	Actions	Updated (UTC)
marimo-docs	Ready	Preview, Comment	Mar 12, 2026 7:47am

[Copilot]

Pull request overview

Removes the gpt-5.4-pro model entry from the shared LLM model registry so it’s no longer offered/selected by default, aligning defaults with cost constraints.

Changes:

• Deleted the “GPT-5.4 Pro” model definition from the models catalog.

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