If you pay for ChatGPT, you now have access to o3-mini. The company's latest reasoning model is on-par with o1-mini in key categories, but improves speed and performance.

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 ...

On Friday, OpenAI released its o3-mini model, the most cost-efficient model in OpenAI's reasoning series, to the public. Until now, that series has been comprised of o1 and o1-mini.

On low reasoning effort, o3-mini lags R1 on GPQA Diamond, which tests models with PhD-level physics, biology, and chemistry questions. To be fair, o3-mini answers many queries at competitively low ...

Although reasoning models possess new capabilities, they come at a cost. OpenAI’s o1-mini is 20 times more expensive to run than its equivalent non-reasoning model, GPT-4o mini.

In response to pressure from rivals including Chinese AI company DeepSeek, OpenAI is changing the way its newest AI model, o3-mini, communicates its step-by-step “thought” process. On Thursday ...

OpenAI has introduced its new GPT-4o Mini model, which is smarter and more “cost-efficient.” The AI giant released its earlier model, GPT-3.5 Turbo, which is not quite as capable. The budget ...

OpenAI is releasing two new AI reasoning models today: o3, which the company calls its “most powerful reasoning model,” and o4-mini, which is a smaller and faster model that “achieves ...

Note, however, that the price for a fine-tuned GPT-4o mini is twice the price of the generic GPT-4o mini, at 30 cents per one million tokens of input to the model, and $1.20 per million output ...