Technology ❯Artificial Intelligence ❯Model Development

OpenAI

GPT-5 o3 Model GPT Series GPT-4.5 Sam Altman o3 Reasoning Model API Access GPT-4o GPT-o1 ChatGPT

OpenAI Announces GPT-4 Retirement from ChatGPT, Effective April 30

GPT-4 will be replaced by the more advanced GPT-4o in ChatGPT, while remaining accessible via API, as OpenAI continues its innovation push.

OpenAI Delays GPT-5 Launch, Announces o3 and o4-Mini Models