With the launch of o3-pro, let’s talk about what AI “reasoning” actually does

Ars Technica
By Benj EdwardsJun 11, 2025, 12:58 pm159 pts
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.…

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