OpenAI retires older GPTs
OpenAI has removed several legacy models from ChatGPT — including GPT‑4o and the 'Instant' and 'Thinking' flavors of GPT‑5 — while keeping newer Frontier models front-and-center and offering legacy access on custom plans. The shift signals consolidation toward fewer, production-grade model SKUs and means you should expect faster deprecation cycles for models you build on. (help.openai.com)
OpenAI removed several older ChatGPT models from the ChatGPT product on February 13, 2026. (openai.com) OpenAI’s help documentation says GPTs that relied on retired models were automatically remapped to the closest GPT‑5.3 Instant or GPT‑5.4 Thinking/Pro equivalents. (help.openai.com) ChatGPT Business, Enterprise and Education customers keep access to GPT‑4o inside Custom GPTs until April 3, 2026, per OpenAI’s support note. (help.openai.com) OpenAI stated the deprecation applies to ChatGPT itself while API access to those older models remains unchanged “at this time.” (openai.com) OpenAI released GPT‑5.4 on March 5, 2026 and described it as a new frontier “Thinking” model with million‑token context and professional-grade coding and tool‑use features. (openai.com) The company framed the removals as a move to concentrate engineering on the models “most people use today” and to reduce the number of active SKUs. (openai.com) OpenAI’s help page also specifies ChatGPT Voice and ChatGPT Images are not changing and continue to run on separate, related model variants despite the text‑model retirements. (help.openai.com)
