The solution to the missing models: Join the Developer Community

ChatGPT
1

If you want control over which model you use and when it changes, use the OpenAI platform (API + Playground). That’s it.

Who this is for

  • ChatGPT users who want to pick the model (e.g., 4o, o3) instead of having the app pick for you.
  • Power Users and creators who need stable behavior (model snapshots), predictable deprecations, and usage you can budget.

Start today (no-code → code when you’re ready)

  • No-code first: Open the Playground on the platform, pick a model in the dropdown, save settings, and run prompts—all in the browser. This gets you 80% of the way with zero setup. OpenAI Platform
  • Then level up when you are ready: Follow the quickstart and build your own chatbot.

Is there a catch?

  • The platform / the API uses prepaid credits. This is separate from a ChatGPT subscription. You need to use a credit card and put in 5$ to get started.
  • Credits expire after a year. Don’t spend more than you need to get started (5$).
  • To access o3 you need to verify with a selfie and ID.
  • It’s not as pretty as ChatGPT, but ultimately that’s up to you.
  • GPT 4.5 is gone. Farewell you great model!

Why the platform is the win

  • Pick the model (GPT-4o, o3, etc.) and use snapshots for consistent behavior over time.
  • See deprecations early and migrate on your schedule, not overnight. You will be informed via email about all the models that you are using.
  • Save prompts, Delete Messages, Steer model behavior, access all the magic

Your 10-minute plan

  1. Log-in to the Playground on the platform.
  2. Get some credits
  3. Create your first prompt, choose your favorite model and let’s go!
  4. You are now on your way to become a AI Developer.

If you have any questions, the OpenAI Developer Community Forum is here to help.

Ps.
I was just as surprised as everyone else to see that the models have been removed from ChatGPT. Since this is the Developer Community Forum, this is my Developer style attempt at a constructive solution. I hope this helps!
If you really need 4o in ChatGPT please visit the OpenAI Discord Server to make your voice heard. The ChatGPT team does not monitor this forum!

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