OpenAI launches new GPT-4.1 models with improved coding, long context comprehension

The new models, available only on OpenAI’s API, outperform the company’s most advanced GPT-4o model across the board, the ChatGPT maker says

    • The family of models also operate at a “much lower cost” compared to GPT-4.5, OpenAI says.
    • The family of models also operate at a “much lower cost” compared to GPT-4.5, OpenAI says. PHOTO: REUTERS
    Published Tue, Apr 15, 2025 · 06:41 AM

    [BENGALURU] OpenAI on Monday (Apr 14) launched its new artificial intelligence (AI) model GPT-4.1, along with smaller versions GPT-4.1 mini and GPT-4.1 nano, touting major improvements in coding, instruction following, and long context comprehension.

    The new models, available only on OpenAI’s application programming interface (API), outperform the company’s most advanced GPT-4o model across the board, the ChatGPT maker said.

    With improved context understanding, they can support up to one million “tokens” – a term that refers to the units of data processed by an AI model. The models are also equipped with refreshed knowledge up to June 2024.

    GPT-4.1 showed a 21 per cent improvement over GPT-4o and 27 per cent over GPT-4.5 on coding. Meanwhile, the improvements in instruction following and long context comprehension also make the GPT-4.1 models more effective at powering AI agents.

    “Benchmarks are strong, but we focused on real-world utility, and developers seem very happy,” CEO Sam Altman said.

    The family of models also operate at a “much lower cost” compared to GPT-4.5, OpenAI said. The company added it would turn off the GPT-4.5 preview that is available in the API in July, as the new models offer “improved or similar performance”.

    OpenAI in February released the GPT-4.5 research preview for some users and developers and announced plans to expand access in subsequent weeks. REUTERS

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