HIGHLIGHTS

OpenAI has officially introduced its newest AI model — the GPT-4.1 series.

A standout feature of the GPT-4.1 models is their remarkably expanded context window.

These models now have the capability to process input of up to 1 million tokens.

OpenAI has made waves in the AI landscape with the official release of its cutting-edge GPT-4.1 series, which comes packed with significant advancements. This latest iteration is tailored to tackle a range of tasks, from code development to thorough document analysis, providing users with enhanced capabilities. The new lineup includes three distinct models: GPT‑4.1, GPT‑4.1 mini, and GPT‑4.1 nano. Let us explore what these developments entail.

“These models excel in coding, following instructions, and managing extended context of up to 1 million tokens. The benchmarks indicate strong performance, but our main focus was on real-world utility, and feedback from developers has been overwhelmingly positive,” stated OpenAI’s CEO, Sam Altman, in a recent post on X (formerly Twitter).

Let’s get into the details regarding the significant advancements in the GPT-4.1 models.

What’s New with OpenAI’s GPT-4.1?

The most notable improvement in the GPT-4.1 models is undoubtedly their vastly expanded context window. With the capability to handle up to 1 million tokens, these models represent a monumental upgrade from the previous GPT-4o models, which could only process up to 128,000 tokens. This expansion means that GPT-4.1 models can grasp lengthy documents, extensive codebases, or complex conversations without losing track of vital details.

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In addition to the enhanced context handling, GPT-4.1 has also seen a significant performance uplift in coding tasks. OpenAI has reported an impressive 21.4% increase in performance over GPT-4o, coupled with a 26.6% enhancement compared to GPT-4.5 in various coding scenarios.

On the Scale’s MultiChallenge benchmark—an indicator of instruction following proficiency—the new GPT‑4.1 achieved a score of 38.3%, marking a 10.5% improvement compared to the previous GPT-4o model, according to OpenAI’s insights.

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OpenAI emphasized in their blog that the successful optimization of these models is a direct result of working closely with the developer community, tailoring features for the most significant applications in the field.

Availability of OpenAI’s GPT‑4.1 Models

All three models—GPT‑4.1, GPT‑4.1 mini, and GPT‑4.1 nano—are now accessible to developers globally.

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