OpenAI trims ChatGPT tiers
OpenAI removed several ChatGPT model tiers from the consumer chat product while keeping API access unchanged, signaling a clearer split between the chat surface and the platform layer. The company said Business, Enterprise and Edu customers still retain GPT-4o access inside custom GPTs and projects, and documented GPT-5.3/5.4 availability in ChatGPT. Separately, OpenAI disclosed a macOS code‑signing toolchain security issue, revoked certificates and urged macOS users to update ChatGPT and Codex to avoid unsupported older versions. (help.openai.com) (reuters.com)
OpenAI has stripped several older model options out of ChatGPT while leaving those same models available through its application programming interface, or API. (help.openai.com) OpenAI’s help center says that on February 13, 2026, ChatGPT retired GPT-4o, GPT-4.1, GPT-4.1 mini, OpenAI o4-mini, and GPT-5 Instant and Thinking from the consumer chat product. A separate help article says GPT-5.1 models were retired from ChatGPT on March 11, 2026, but remain available through the API. (help.openai.com 1) (help.openai.com 2) The same OpenAI documentation says ChatGPT Business, Enterprise, and Edu customers kept GPT-4o inside Custom GPTs until April 3, 2026, after which GPT-4o was “fully retired across all plans.” OpenAI also says API access was unchanged and future API retirements will come with advance notice. (help.openai.com 1) (help.openai.com 2) OpenAI’s current model lineup inside ChatGPT now centers on newer GPT-5.3 and GPT-5.4 variants rather than a long list of legacy choices. Its help center article on GPT-5.3 and GPT-5.4 says those models are available in ChatGPT, marking a cleaner split between the chat app people use and the developer platform that still exposes older endpoints. (help.openai.com 1) (help.openai.com 2) That split is showing up in adjacent OpenAI products too. In a Codex changelog posted April 7, 2026, OpenAI said the model picker for users who sign in with ChatGPT no longer shows several older coding and general models, and that those models will be removed from Codex for ChatGPT sign-in on April 14. (help.openai.com) The remaining Codex choices for ChatGPT sign-in users include GPT-5.4, GPT-5.4-mini, GPT-5.3-codex, and GPT-5.2, while users who sign in with an API key can still configure other API-supported models. That gives paying developers a broader menu than ordinary ChatGPT users, even when both are using OpenAI software. (help.openai.com) OpenAI disclosed a separate issue on April 11 involving a compromised third-party developer tool called Axios that touched its macOS code-signing process. Reuters and CNBC both reported that OpenAI said it found no evidence that user data was accessed, its systems or intellectual property were compromised, or its software was altered. (reuters.com) (cnbc.com) OpenAI said it revoked the affected certificates, re-signed its ChatGPT and Codex macOS applications, and told macOS users to update to the latest versions because older versions are no longer supported. Reuters reported the company also said users should avoid downloading ChatGPT or Codex from unofficial sources. (reuters.com) (cnbc.com) Taken together, the changes leave ChatGPT with fewer visible model tiers, newer defaults, and less room for users to cling to old versions. The older models still exist on OpenAI’s platform layer, but inside ChatGPT itself, the menu is getting shorter. (help.openai.com) (help.openai.com)
