As for the older GPT-4 model, OpenAI plans to remove it from ChatGPT on April 30th and will replace it with GPT-4o. The Verge reported last week that OpenAI will release the full version of its o3 and o4 mini reasoning models, soon.

OpenAI claims the full GPT-4.1 model outperforms its GPT-4o and GPT-4o mini models on coding benchmarks, including SWE-bench. GPT-4.1 mini and nano are said to be more efficient and faster at the cost of some accuracy, with OpenAI saying GPT-4.1 nano is its speediest — and cheapest — model ever.

Learn why GPT-4.1 is a fantastic AI tool for developers, offering advanced capabilities, cost-effective performance, and versatile apps