Models
March 6, 2026

Introducing GPT‑5.4

OpenAI introduced GPT-5.4, an updated version of its GPT-5 model family designed to improve reasoning, coding, and complex knowledge work. The model is available in ChatGPT and through developer APIs, with variants such as GPT-5.4 Thinking and GPT-5.4 Pro for more demanding tasks.

GPT-5.4 is OpenAI’s latest model designed to improve reasoning, coding, and large scale knowledge tasks. It introduces stronger multi step reasoning capabilities, allowing the model to solve complex problems in areas such as engineering, research, and data analysis.

A major advancement is its expanded context window, which can process extremely large documents, datasets, or codebases within a single interaction. This helps users analyze long reports, legal files, or technical systems more efficiently.

GPT-5.4 also supports agent driven workflows, enabling AI systems to coordinate tools and complete multi stage tasks. Overall, the model focuses on reliability, deeper reasoning, and practical applications for professional and enterprise environments.

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OpenAI

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