OpenAI Launches GPT-4.1 Models with Enhanced Coding and Long Context Comprehension

On April 14, 2025, OpenAI announced the release of its latest AI models: GPT-4.1, GPT-4.1 mini, and GPT-4.1 nano. These models offer significant advancements in coding capabilities, long context comprehension, and instruction following. GPT-4.1 notably surpasses previous models, with coding performance improving by 21% compared to GPT-4o and 27% over GPT-4.5. One major enhancement is the increased context window, supporting up to 1 million tokens, facilitating deeper understanding of large data sets. The models, updated with knowledge through June 2024, are accessible exclusively via OpenAI's API and are designed to be more effective for powering AI agents. Additionally, OpenAI highlighted the models’ reduced operational cost compared to GPT-4.5 and announced it would discontinue the GPT-4.5 preview in the API by July. CEO Sam Altman emphasized the models' strong performance in practical applications and positive feedback from developers.