ChatGPT's o3 is OpenAI's best model to date because it features reasoning, and it might get even better in the next update.

OpenAI makes the remarkable claim that o3, at least in certain conditions, approaches AGI — with significant caveats. More on that below. o3, our latest reasoning model, is a breakthrough, with ...

OpenAI has yet to price o3 — or release it, even. But the Arc Prize Foundation believes OpenAI’s o1-pro model pricing is a reasonable proxy. For context, o1-pro is OpenAI’s most expensive ...

Like o3, o3-pro has access to various tools available in ChatGPT, including online search, file support, reasoning with visual prompts, coding (Python), and memory. It's not quite on par with o3 ...

OpenAI o3 and o4-mini are OpenAI's first models to "think with images." OpenAI explains that this means the models don't just see an image; they can actually use the visual information in their ...

The cost of new AI models can add up quickly. A new “o3” model from OpenAI costs $20 per task. Why Microsoft is paying close attention to the price.

As of Friday, users at all subscription tiers can access the o3-mini model through the ChatGPT platform. Free users need to tap the “Reason” button in the prompt window to activate it, while ...

What happened during the o3 AI shutdown tests? What does it mean when an AI refuses to shut down? A recent test demonstrated this behavior, not just once, but multiple times. In May 2025, an AI ...

o3 used to be too slow and too expensive for daily coding—no longer. The latency is now bearable, the price is sane, and the chain-of-thought pays off.

As someone who's spent countless hours testing ChatGPT's capabilities, I can confidently say that o3-mini is a game-changer for complex reasoning tasks. This compact yet powerful model ...

They found that o3 prevented the shutdown 7 times out of 100. Codex-mini stopped it 12 times, while o4-mini stopped it only once. The researchers then ran the same test without the instruction ...

OpenAI said on Friday it was testing new reasoning AI models, o3 and o3 mini, in a sign of growing competition with rivals such as Google to create smarter models capable of tackling complex problems.