A mere two days after announcing GPT-4.1, OpenAI is releasing not one but two new models. The company today announced the public availability of o3 and o4-mini. Of the former, OpenAI says o3 is its ...

After years of hype and speculation, OpenAI has officially launched a new lineup of large language models (LLMs), all different-sized variants of GPT-5, the long-awaited successor to its GPT-4 model ...

What if the future of artificial intelligence wasn’t just smarter—but also smaller, faster, and more accessible than ever? With the release of GPT-5, OpenAI has introduced not one, but three tailored ...

On Wednesday, OpenAI launched its latest reasoning models, o3 and o4-mini. As with its other o-series models, OpenAI's o3 and o4-mini think for a longer period of time before responding in order to ...

OpenAI released its newest reasoning model, called o3-mini, on Friday. OpenAI says the model delivers more intelligence than OpenAI’s first small reasoning model, o1-mini, while maintaining o1-mini’s ...

OpenAI announced on Wednesday the launch of o3 and o4-mini, new AI reasoning models designed to pause and work through questions before responding. The company calls o3 its most advanced reasoning ...

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 launched its long-awaited GPT-5 model. The model is claimed to be OpenAI's fastest, smartest, and most capable yet. GPT-5 is available to everyone: Free, Plus, Pro, and Team/Enterprise/Edu ...

OpenAI just announced GPT-5, the company's latest LLM. OpenAI touted improvements in hallucination, deception, coding, and health. GPT-5 will be available for all ChatGPT users, and will come in three ...

First reported by TechCrunch, OpenAI's system card detailed the PersonQA evaluation results, designed to test for hallucinations. From the results of this evaluation, o3's hallucination rate is 33 ...