TL;DR: OpenAI has launched the o3-mini, its most cost-efficient and powerful model in the reasoning series, focusing on STEM capabilities. It offers features like function calling and structured ...

OpenAI (OPENAI) has launched GPT‑5.4 mini and nano, its most capable small models yet, according to the ChatGPT maker. The company said GPT‑5.4 mini significantly improves over GPT‑5 mini across ...

UPDATE: Apr. 16, 2025, 2:18 p.m. EDT Now that the OpenAI livestream has ended, this article has been updated with the latest information about the o3 and o4-mini launch. OpenAI's o3 and o4-mini models ...

Jan 17 (Reuters) - ChatGPT maker OpenAI has finalized a version of its new reasoning AI model o3 mini and would be launching it in a couple of weeks, CEO Sam Altman said on Friday. The ...

OpenAI is rolling out a more affordable, slimmed-down version of its flagship artificial intelligence model to appeal to a wider range of developers and business customers in an increasingly crowded ...