GPT-5.4 Has Arrived
OpenAI has launched GPT-5.4, its newest and most capable frontier model designed for professional work. Key features include state-of-the-art coding ability, advanced computer use, improved tool search for building agents, and a massive 1 million-token context window that lets users process long documents, transcripts, and large codebases at once. Positioned as OpenAI's most efficient frontier model, GPT-5.4 targets developers, lawyers, and analysts who need top-tier performance and resource efficiency throughout the workday.
What GPT-5.4 Is and Who It's For
OpenAI has introduced GPT-5.4, its newest and most capable frontier model built specifically for professional work. If you spend your workday writing code, managing complex documents, or juggling tools and apps, this release is aimed squarely at you. GPT-5.4 brings together top-tier performance in coding and computer use, stronger abilities in searching across tools, and a massive 1 million-token context window—making it OpenAI's most capable and efficient model to date for getting real work done.
Best-in-Class Coding and Computer Use
The headline improvements in GPT-5.4 center on the tasks professionals actually do. OpenAI describes its coding ability as state-of-the-art, meaning the model can handle demanding programming work with a high level of skill—whether that's writing new code, debugging existing projects, or understanding large codebases.
Alongside coding, GPT-5.4 delivers advanced computer use. That means the model can operate a computer environment on your behalf—navigating interfaces and completing tasks that previously required hands-on human effort. Paired with this is improved tool search: rather than just answering questions, the model can find and use the right tools for a job, chaining them together as needed. For anyone automating workflows or building agents, this combination of coding, computer control, and tool discovery makes GPT-5.4 a significant step forward.
A 1 Million-Token Context Window
Perhaps the most practical upgrade is the context window. GPT-5.4 supports 1 million tokens, which translates to an enormous amount of working memory in a single conversation. In everyday terms, that means you can load in very long documents, lengthy transcripts, or sizable codebases and have the model reason across all of it at once—without chopping your material into pieces.
For professionals, this changes how the model fits into daily work. Lawyers reviewing long contracts, developers working across multiple large files, and analysts processing lengthy reports can all keep more of their material in view at one time, reducing the friction of context management.
Efficiency for Professional Use
Capability alone isn't the whole story—OpenAI also positions GPT-5.4 as its most efficient frontier model. In practice, that means the model is designed to deliver its top-tier performance while using resources effectively, which matters for teams relying on it throughout the workday. Efficiency and capability together are what make this a model built for professional use rather than just demos and benchmarks.
The Bottom Line
GPT-5.4 represents OpenAI's current peak: state-of-the-art coding, strong computer use and tool search, and a 1 million-token context window, all wrapped in its most efficient frontier design yet. If your work involves heavy coding, complex documents, or automated computer tasks, this model is built with you in mind.
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