GPT-5.4 boasts 1M token context window
OpenAI’s GPT-5.4 now offers a 1-million-token context window, improved agentic capabilities, and “computer-use” superpowers. These advances enable whole-repository code analysis and persistent memory for agentic tasks. The model brings more granular control over “reasoning effort,” letting developers optimize for both speed and cost.
The 1 million token context window in GPT-5.4 allows the model to process approximately 750 pages of text in a single prompt, a substantial increase from previous limits. This expanded context enables more complex and nuanced interactions, particularly in tasks requiring long-term memory or the analysis of large documents. The "computer-use" superpowers within GPT-5.4 refer to the model's enhanced ability to interact directly with computer systems and tools. This allows for more autonomous task completion, such as debugging code, managing files, or even deploying applications, potentially streamlining development workflows. GPT-5.4's improved agentic capabilities build upon OpenAI's work in creating AI agents that can perform tasks autonomously. These agents can now maintain persistent memory across interactions, allowing them to learn and adapt over time, making them more effective in long-term projects and complex problem-solving scenarios.
