Mashable: OpenAI is retiring GPT-4 from ChatGPT. “According to ChatGPT’s release notes (via TechCrunch), ‘GPT-4 will be retired from ChatGPT’ on April 30. The model, which was released over two years ago, will still be available in the API, but recent updates to GPT-4o have rendered GPT-4 somewhat obsolete.”

https://rbfirehose.com/2025/04/13/mashable-openai-is-retiring-gpt-4-from-chatgpt/