OpenAI Releases Three GPT-4.1 Models to Developers

OpenAI is making three new GPT-4.1 models available for developers today. GPT‑4.1, GPT‑4.1 mini, and GPT‑4.1 nano are now available through the OpenAI API, and the company is promising “exceptional performance at a lower cost.”

“These models outperform GPT‑4o and GPT‑4o mini across the board, with major gains in coding and instruction following,” OpenAI said today. “They also have larger context windows—supporting up to 1 million tokens of context—and are able to better use that context with improved long-context comprehension.

According to OpenAI, its GPT-4.1 models are much better at powering AI agents, and the flagship GPT 4.1 model outperforms the GPT‑4.5 Preview model “on many key capabilities at much lower cost and latency.” As a result, GPT-4.5 will be removed from the OpenAI API in three months.

As for the other two new models in this series, GPT-4.1 mini is said to be beating GPT-4.0 in “many benchmarks,” all while reducing latency by nearly 50% and cost by 83%. GPT-4.1 nano, however, is the fastest and cheapest model in this GPT-4.1 series, and it also outperforms GPT-4o mini for coding tasks.

OpenAI isn’t making its GPT-4.1 series models available outside of its developer API, as these new models are trained specifically for developers. That means that ChatGPT users will have to stick with the flagship GPT-4o model. “In ChatGPT, many of the improvements in instruction following, coding, and intelligence have been gradually incorporated into the latest version⁠ of GPT‑4o, and we will continue to incorporate more with future releases,” the company said today.