OpenAI launches GPT-5.5 for faster coding, research, and complex work

OpenAI has introduced GPT-5.5, its newest and most capable model for ChatGPT and the API. The company says the model is designed for harder work, especially tasks that need coding, research, data analysis, document handling, and careful reasoning.

GPT-5.5 is not just being presented as a small speed upgrade. OpenAI says it understands task intent better than earlier models and uses tokens more efficiently. That means it should be able to handle longer or more complex jobs with less waste, which matters for users working with large files, codebases, reports, or research material.

GPT-5.5 is aimed at people who use ChatGPT for serious work, not just quick answers

The main focus of GPT-5.5 is professional use. OpenAI says GPT-5.5 Thinking is available in ChatGPT for eligible paid plans, while GPT-5.5 Pro is meant for the hardest questions and higher-accuracy work. GPT-5.5 Pro is available to Pro, Business, Enterprise, and Edu users, though Enterprise and Edu access can depend on workspace settings.

For Plus users, OpenAI’s pricing page lists advanced reasoning with GPT-5.5 Thinking as part of the plan. It also includes expanded uploads, more advanced image creation, expanded deep research and agent mode, projects, tasks, custom GPTs, and expanded Codex usage.

OpenAI also shared benchmark results to show where the model has improved. The company says GPT-5.5 scored 84.9% on GDPval, 78.7% on OSWorld-Verified, and 98.0% on Tau2-bench Telecom without prompt tuning. These tests focus on professional work, computer-use tasks, and complex customer-service workflows.

The model is also being pushed as a stronger tool for science and technical research. OpenAI says GPT-5.5 performs better than GPT-5.4 on GeneBench, a benchmark for genetics and quantitative biology tasks. The company also says it performed strongly on BixBench, which is focused on real-world bioinformatics and data analysis.

Developers can also access GPT-5.5 through the OpenAI API. OpenAI’s API pricing page lists GPT-5.5 as a flagship model for coding and professional work, with pricing at $5 per 1 million input tokens, $0.50 per 1 million cached input tokens, and $30 per 1 million output tokens.

The bigger picture is clear: OpenAI wants GPT-5.5 to be useful for people who rely on AI as a work partner, not only as a chatbot. It is built for longer tasks, more structured answers, better coding help, and deeper research support. For casual users, the change may feel like a faster and smarter ChatGPT. For paid users and businesses, it could be a more serious tool for getting real work done.