A few days ago, OpenAI released GPT-5.3 Instant, promising to make ChatGPT less awkward and more natural in interactions with users. Now, the company is back with GPT-5.4 Thinking and Pro, which is a complete upgrade of its most capable model.
OpenAI last upgraded this model in December with GPT-5.2 “code red,” in response to competition from Google’s Gemini.
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Regarding the innovations of the new GPT-5.4 Thinking and Pro, OpenAI highlights six key improvements in the following areas:
- Coding, document understanding, tool usage and instruction following
- Image perception and multimodal tasks
- Long-running task execution and multi-step agent workflows
- Token efficiency and end-to-end performance in tool-heavy workloads
- Agentic web search and synthesis of multiple sources, especially for information that is hard to locate
- Document- and spreadsheet- heavy business workflows in customer service , analytics, and finance
GPT-5.4 supports up to1 million tokens in the context window, making it easier to analyze entire code bases, large document collections, or extensive agent trajectories with a single request.
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Additionally, the company says that GPT-5.4 is the first mainline model with built-in computing capabilities, allowing agents to interact directly with the software to complete, verify, and fix tasks in a build-run-verify-fix loop.
OpenAI ChatGPT: Upgrade GPT-5.4 and availability
OpenAI says GPT-5.4 is gradually rolling out to ChatGPT and Codex starting yesterday. GPT-5.4 Thinking is available to Plus, Team, and Pro and will replace GPT-5.2 Thinking, which will be retired in three months.
This new OpenAI upgrade aims to enhance the performance and flexibility of its models, offering users a smoother and more efficient experience. With support for larger context windows, users can process and analyze more extensive data, which is especially useful for professionals working with large databases or complex software projects.
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Additionally, built-in computing capabilities allow agents to perform more complex tasks, such as directly interacting with software to complete and verify tasks. This opens up new possibilities for automating and optimizing processes, making GPT-5.4 a powerful tool for businesses and developers.
Overall, GPT-5.4 represents a significant advancement in AI technology, offering improvements that boost performance, flexibility, and the efficiency of OpenAI's models. As technology continues to evolve, we expect to see even more innovations and enhancements in the future.
