OpenAI has officially introduced ChatGPT 5.2, its most advanced AI model to date, following weeks of accelerated internal development and heightened competitive pressure. The release positions the model as a direct response to Google’s rapidly growing Gemini 3 platform, which has been gaining momentum globally. With this update, OpenAI promises quicker responses, smoother automation, and a noticeable reduction in errors across a variety of tasks.

According to the company, ChatGPT 5.2 is specifically designed to support individuals and professionals who regularly work with large datasets, extensive documents, software development, or creative projects. The upgraded model aims to deliver more reliable outputs whether someone is drafting long reports, analysing complex data, creating software, or generating presentations.

One of the standout additions in ChatGPT 5.2 is the introduction of three distinct working modes—Instant, Thinking, and Pro. Each mode is tailored to a different type of task. Instant mode focuses on speed and is meant for quick interactions or lightweight queries. Thinking mode slows the model slightly to deliver stronger logic and more dependable reasoning, making it suitable for research-heavy or multi-step tasks. For users who require maximum accuracy and deeper analysis, Pro mode offers the highest level of output quality among the three.

Another major technical advancement is the expanded 400,000-token context window. This upgrade allows ChatGPT 5.2 to process significantly longer documents and conversations without the need to break them into smaller parts. Whether it is legal paperwork, research transcripts, or large spreadsheets, the model can now retain and analyse far more information in one session. Early internal tests also suggest lower latency, which will be valuable for companies relying on the model in real-time or high-volume environments.

The update also improves ChatGPT's performance on large and complex projects. OpenAI reports stronger capabilities in debugging code, supporting production-level software development, managing long-running automated workflows, and generating complete, multi-step outputs like detailed reports or structured presentations. This makes the model more suitable than before for enterprise-grade workloads.

ChatGPT 5.2 also delivers enhanced visual and document comprehension. The model performs better in interpreting images, reading charts, and analysing lengthy or intricate documents. This improvement supports use cases in education, research, design, and data analysis, where AI needs to understand more than just plain text.

The launch comes amid reports of internal urgency at OpenAI as Google’s Gemini 3 continues to gain traction in multimodal benchmarks. While benchmarking suggests both models excel in different areas, early results indicate GPT-5.2 performs particularly well in web development and reasoning-heavy tasks, while Gemini 3 maintains strengths in visual and multimedia evaluations. Google cites a 91.8% score on MMMLU for Gemini 3, compared to OpenAI’s reported 89.6% for ChatGPT 5.2—showing a close race between the two leaders.

ChatGPT 5.2 is rolling out to Plus, Pro, Business, and Enterprise subscribers, with broader access expected soon. Developers can also integrate the model through the API, starting at $1.75 per million output tokens. Paid users can access the new modes directly in the app or web interface.