About OpenAI o3
OpenAI o3 represents the pinnacle of AI reasoning technology, achieving groundbreaking results on the ARC-AGI benchmark that demonstrate near-human-level abstract reasoning abilities. This next-generation model excels at solving complex mathematical problems (achieving 91.6% on AIME 2024), advanced coding challenges, and sophisticated scientific analysis tasks that require multi-step logical thinking. Built as the successor to o1, o3 features enhanced efficiency and superior problem-solving capabilities across mathematics, science, and engineering domains. The model is designed for researchers, engineers, and professionals who need AI assistance with the most challenging analytical tasks. Available through ChatGPT Pro subscription and API access, o3 sets new standards for AI reasoning while maintaining OpenAI's commitment to safety and reliability in frontier AI development.
Best For
Pros & Cons
Pros
- Achieves 91.6% accuracy on AIME 2024 mathematical reasoning
- Breakthrough performance on ARC-AGI benchmark
- Superior coding and software engineering capabilities
- Advanced multi-step logical reasoning
- Excellent for complex scientific analysis
Cons
- Very expensive at $200/month for Pro access
- Limited availability and access
- Slower response times due to reasoning process
Pricing Plans
- Full o3 model access
- Unlimited usage
- Priority support
- Advanced reasoning capabilities
- Pay-per-use pricing
- Enterprise integration
- Variable output pricing
- Batch processing
Prices as of Feb 2026. Check official site for current pricing.
What People Say
It's still awful at writing code, but when it comes to spotting bugs and offering real solutions, o3 is on another level. Claude and Gemini gave
When o3 works, it is like 'wow!' however, it is very concerning how much it hallucinates. For example - trying to use o3 for coding is pointless.
It solves graduate level physics problems quite easily. Very helpful. First ai that can be used effectively for upper level stem help.
Despite its impressive achievements, o3 still depends heavily on the quality of its training data and the structure of its task. It lacks
FAQ
What is OpenAI o3?
Experience OpenAI's most advanced reasoning model o3, delivering breakthrough performance on complex mathematical, coding, and scientific problems with near-human-level abstract reasoning capabilities.
How much does OpenAI o3 cost?
$200 ChatGPT Pro • $15 API Access
Is OpenAI o3 good for beginners?
It depends on your experience level. Check the features to see if it fits your needs.
What are the best alternatives to OpenAI o3?
Popular alternatives include OpenAI o1, Claude Sonnet 4.5, Gemini.
