OpenAI Releases o3-Pro Model for ChatGPT, Delivering Breakthroughs in Complex Reasoning

OpenAI has officially launched its most advanced language model to date, o3-Pro, now available to all ChatGPT Pro and Team users as of June 10, 2025. Designed to excel at complex, multi-step reasoning across a wide range of disciplines, the o3-Pro model represents a major leap in AI capability, particularly for users who rely on ChatGPT for technical, scientific, educational, and professional problem-solving.

According to OpenAI, o3-Pro outperforms all prior models, including GPT-4 Turbo, in tasks that require precision, clarity, and adherence to detailed instructions. This includes solving advanced mathematical problems, writing accurate code, interpreting complex datasets, and conducting high-level scientific reasoning. Independent evaluations have reportedly favored o3-Pro over its predecessors in terms of coherence, factual accuracy, and response quality.

The o3-Pro rollout is not just a backend upgrade—it reflects OpenAI’s growing focus on delivering models that can “think longer,” minimizing logical fallacies and improving consistency across longer interactions. This aligns with broader trends in AI development, where the emphasis is shifting from generating flashy content to producing reliable, verifiable outputs for real-world applications.

While the new model brings a host of improvements, OpenAI notes that it also introduces slightly increased latency due to its deeper reasoning processes and integration with a range of advanced tools. These include web browsing, code execution, data analysis, file interpretation, and image understanding—each accessible within ChatGPT’s interface for Pro and Team users. This combination allows o3-Pro to handle more sophisticated prompts that require synthesis across multiple modalities.

Enterprise and Education users will begin receiving access to o3-Pro starting next week. The model is also now available through OpenAI’s API, opening the door for developers to build advanced applications using the same reasoning engine that powers ChatGPT Pro.

In a saturated market of AI tools, o3-Pro sets a new bar for accuracy and versatility, aiming not only to assist with creative generation but to function as a trusted collaborator on deeply technical tasks. As OpenAI positions itself for enterprise and research partnerships, the release of o3-Pro underscores its ambition to lead in the next phase of AI utility and trustworthiness.

Highlights

• Release Date: June 10, 2025

• Availability: Now live for ChatGPT Pro and Team users; coming next week for Enterprise and Education users

• API Access: Available immediately via OpenAI API

• Tool Support: Fully integrated with web browsing, Python code interpreter, file uploads, and image analysis

• Ideal Use Cases: Scientific research, math and coding tasks, technical writing, education, business strategy

• Pricing (API): $20 per million input tokens / $80 per million output tokens

• Notes: Slightly higher latency due to deeper reasoning and tool execution

• Model Replaces: o1-Pro in ChatGPT model picker