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On Tuesday, OpenAI announced that o3-pro, a new version of its most capable simulated reasoning model, is now available to ChatGPT Pro and Team users, replacing o1-pro in the model picker. The company also reduced API pricing for o3-pro by 87 percent compared to o1-pro while cutting o3 prices by 80 percent. While “reasoning” is useful for some analytical tasks, new studies have posed fundamental questions about what the word actually means when applied to these AI systems.
We’ll take a deeper look at “reasoning” in a minute, but first, let’s examine what’s new. While OpenAI originally launched o3 (non-pro) in April, the o3-pro model focuses on mathematics, science, and coding while adding new capabilities like web search, file analysis, image analysis, and Python execution.
