Final week, OpenAI CEO Sam Altman teased that he was dropping a brand new characteristic. Paired with reviews and spottings of latest mannequin artwork, many speculated it was the long-awaited launch of the GPT-4.1 mannequin. It turned out to be a large ChatGPT replace that launched new reminiscence capabilities — however now, OpenAI's new household of fashions has lastly arrived.
New household of fashions – for builders
On Monday by way of a livestream, OpenAI unveiled a brand new household of fashions: GPT-4.1, GPT-4.1 mini, and GPT-4.1 nano. In keeping with OpenAI, the household of fashions provides enhancements in coding, instruction-following, and long-context understanding, and outperforms GPT-4o and GPT-4o mini "throughout the board."
The fashions had been purpose-built for builders and, consequently, will solely be accessible by way of the API.
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OpenAI says the GPT-4.1 fashions had been constructed utilizing developer suggestions to enhance areas they’re notably targeted on, akin to following dependable codecs, adhering to response construction and order, front-end coding, and extra. Within the X put up teasing the discharge, OpenAI referred to the mannequin as addressing builders' "supermassive black gap."
One of many greatest benefits of the fashions is its decreased latency (lag) even with greater efficiency on intelligence evaluations, such because the Multilingual (MMLU) benchmark, seen under.
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Regardless of these advantages, the fashions are additionally cost-effective, addressing a significant ache level for builders.
OpenAI shared that GPT-4.1 is 26% cheaper than GPT-4o at median queries, and GPT-4.1 is the quickest and most cost-effective mannequin the corporate has launched thus far. Moreover, GPT-4.1 mini reduces prices by 83%, based on the weblog put up.
Different benefits embrace bigger context home windows, which check with the quantity of tokens (items of data) the mannequin can course of as enter and output. The GPT-4.1 fashions help as much as a million tokens. For reference, the o1 and o3-mini fashions within the API have a 200K context size, and GPT-4.5 and GPT-4o have a 128K context size.
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OpenAI says the lengthy context comprehension, paired with enhancements in instruction-following, make the GPT-4.1 fashions "simpler" at powering AI brokers, the newest frontier in AI. Merely put, AI brokers are AI programs that may do duties for you independently with out being instructed on the right way to perform each particular person step.
To be taught extra about how the brand new fashions fare towards the earlier fashions throughout completely different benchmarks and particular use circumstances, go to the detailed weblog put up during which OpenAI supplied the outcomes.
Because the new fashions supply related or improved efficiency at a decrease price than GPT-4.5, the corporate additionally introduced it’s deprecating GPT-4.5 and specializing in constructing future fashions. To offer builders ample time to transition, GPT-4.5 Preview shall be turned off on July 14, 2025.
Not a developer? Attempt GPT-4o
For those who're a typical ChatGPT person and never a developer, there's no must be disenchanted.
Additionally: ChatGPT's GPT-4 mannequin retires quickly – some customers can proceed to entry it
Though the brand new GPT-4.1 fashions won’t be accessible inside the ChatGPT mannequin picker, the newest model of GPT-4o within the chatbot consists of most of the identical enhancements, as seen within the changelog description for the March 27 replace.
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