OpenAI unveiled the GPT-4.1 family of AI models on Monday. These models include GPT-4.1, GPT-4.1 Mini, and GPT-4.1 Nano. Developers will have access to these models in the form of application programming interfaces (APIs). With a knowledge cutoff of June 2024, the business asserts that the GPT-4.1 models “outperform GPT‑4o and GPT‑4o Mini across the board,” with significant enhancements in coding skills and a larger context window of up to 1 million tokens.
“GPT-4.1 (and Mini and Nano) are now available in the API! These models are great at coding, instruction following, and long context (1 million tokens). Benchmarks are strong, but we focused on real-world utility, and developers seem very happy. The GPT-4.1 family is API-only,” wrote OpenAI CEO Sam Altman in an X post on Monday.
“We’re bringing the latest GPT-4.1 models from OpenAI to Foundry, representing significant advancements in coding, instruction following, and long-context processing. Big upgrades for devs building with AI,” Microsoft CEO Satya Nadella wrote in an X post on Monday.
These models will only be available via the API; ChatGPT will not be able to access them. However, some of these new features will be added progressively to ChatGPT powered by GPT-4o. Additionally, Microsoft has said that developers will have access to the GPT-4.1 models through the Azure OpenAI Service.
The GPT-4.1 family of AI models is 26% less costly than GPT-4o. One million input tokens, cached input tokens, and output tokens will cost $0.10, $0.025 and $0.40, respectively, for the GPT-4.1 Nano.
According to OpenAI, these models—particularly GPT-4.1 Nano, the company’s “fastest and cheapest model” to date—offer “exceptional performance at a lower cost” since they were trained with an emphasis on real-world performance.
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