OpenAI o3-pro: Newer Model, Even Better Reasoning

Estimated reading time: 3 minutes

OpenAI has just launched o3-pro, its most advanced AI model yet. The tech world is buzzing. For techies and AI enthusiasts, this update is more than just a routine upgrade. It marks a new era in how artificial intelligence tackles complex reasoning and technical tasks.

What Makes OpenAI o3-pro Special?

A Smarter Reasoning Engine

The new OpenAI o3-pro model is not just another large language model. Instead, it belongs to a new class of reasoning models.

These models break down problems step by step, making them more reliable in technical fields. Fields like physics, programming, and advanced mathematics.

As a result, users get answers that are not only accurate but also easy to follow.

Powerful New Tools

OpenAI o3-pro now comes with an impressive toolkit:

• Web search: It can fetch and verify information in real time.
• File analysis: Upload documents and let the model analyze them.
• Visual reasoning: o3-pro can understand and reason about images.
• Python execution: Run code snippets directly within the chat.
• Personalized memory: The model remembers preferences for more tailored responses.

However, there are a few limitations. Currently, o3-pro cannot generate images, and the Canvas workspace feature is not supported. Temporary chat support is also unavailable due to a technical issue.

Performance That Outshines the Competition

Benchmark Victories

OpenAI o3-pro doesn’t just promise better results – it delivers. In recent benchmarks, o3-pro outperformed Google’s Gemini 2.5 Pro in the AIME 2024 math competition. It also topped Anthropic’s Claude 4 Opus in the GPQA Diamond science test. This makes it a top choice for anyone needing accurate, high-level reasoning.

Consistent User Praise

Internal and external reviewers consistently rate o3-pro higher than its predecessors, especially in clarity, comprehensiveness, instruction-following, and accuracy. OpenAI’s own changelog states:

“Reviewers consistently prefer o3-pro over o3 in every tested category and especially in key domains like science, education, programming, business, and writing help.” ~ OpenAI writes in a changelog.

How Can You Access OpenAI o3-pro?

• ChatGPT Pro and Team users: Access o3-pro immediately.
• Enterprise and Edu users: Rollout is scheduled for next week.
• Developers: The model is live in the API, priced at $20 per million input tokens and $80 per million output tokens—about 750,000 words per million input tokens.

What’s New for Developers and Researchers?

Alongside o3-pro’s launch, OpenAI has slashed the price of the standard o3 model by 80%, making advanced AI more accessible for experimentation and research. However, the open-source reasoning model is delayed until later this summer.

Should You Switch to o3-pro?

If you’re working in science, programming, business analytics, or any field that demands step-by-step reasoning, o3-pro is a game-changer.

While responses may be slower due to the model’s thoroughness, the trade-off is worth it when accuracy matters most.

OpenAI o3-pro: Final Thoughts

OpenAI o3-pro isn’t just an incremental update – in fact it’s a major leap for AI-powered reasoning. With its advanced tools, improved clarity, and benchmark-topping performance, it’s indeed set to become the go-to model for technology professionals and AI enthusiasts.

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Reference

1. News. (2024b). Openai.com. https://openai.com/news/