Codex Support for Alternative Models

X postkitze 🛠️ tinkerer.clubOpinion

Developer Kitze praises the Codex team for allowing users to run external models within their application and harness.

Key points

  1. Kitze calls the Codex team's willingness to support other models a bold move.
  2. In follow-up posts, the author points to an article on tinkerer.club detailing a more advanced setup.
  3. Community replies discuss configuring custom models and APIs inside the Codex desktop environment.

Why it matters

Allowing third-party models in developer harnesses prevents vendor lock-in and gives developers the freedom to choose their preferred LLMs without changing interfaces.

Analysis

Kitze emphasizes the value of an open harness approach where the tool itself remains model-agnostic. By welcoming alternative models into Codex, the team prioritises developer workflow and interface utility over strict model lock-in.

Original post

kitze 🛠️ tinkerer.club

@thekitze · 6 September 2026

I LOVE that the codex team is not afraid to let you use other models in their harness and app. ballsy move. t.co/W2AiAW02q8

2.6k likes71 replies422 bookmarks243.7k views

View on X
More posts in the thread (4)
  1. t.co/hR1wBuT6py the answer to all the questions in the replies :)
  2. @shaedapk @charlesma_ lmfao there's an article on @tinkererclub
  3. @gxlmo @shaedapk @charlesma_ no it's not it's a bit fancier setup :)
  4. @thsottiaux tibothy man do the thing for the love of god
Selected replies (5)
  • @thsottiaux @thekitze Why would we
  • @AnkitR45220 @thsottiaux @thekitze Also give astra to plus user in gpt chat
  • @nickdsgn @randome_dev @thekitze I use that: t.co/3mndIgPJ4R
  • @kethcode @thsottiaux @thekitze ask anthropic. they must have a reason. <.<
  • @SIGKITTEN @thekitze heh yw

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Summary generated by AI (Gemini 3.8 Flash, 27 September 2026). It may contain errors – the original source is authoritative.

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