ChatGPT 4.1 now available in the app and web

OpenAIs coding model was launched in the API only on April 14th, and reduced costs compared to GPT 4.5.

It also comes with a large context window of 1 million «tokens.» These are compute units that roughly translates to 750,000 words — so this model can read and output very large files or codebases.

It should be available under the model selector menu by clicking on «More models.»

UPDATE: It seems that without announcement of fanfare, free users on ChatGPT.com now get 4.1-mini as the new default model, a step up from the previous 4o-mini.

Despite some reports, GPT-4.1 does not appear to be the default for paid users—ChatGPT Plus still opens with GPT-4o as standard

By popular request, GPT-4.1 will be available directly in ChatGPT starting today.

GPT-4.1 is a specialized model that excels at coding tasks & instruction following. Because it’s faster, it’s a great alternative to OpenAI o3 & o4-mini for everyday coding needs.

— OpenAI (@OpenAI) May 14, 2025

Read more: OpenAI’s model release notes, Ars Technica bemoans model confusion, Teknotum on the 4.1 launch.