OpenAI has released its first open-weight language models since GPT-2 — GPT-OSS-120B and GPT-OSS-20B — signaling a strategic ...

Looking at all the options like GPT‑4, GPT‑4o, GPT‑4o mini, GPT‑4.5, GPT-o3 and so on… it can cause anyone’s head to spin faster than a rapidly charging laptop or smartphone.

If you’ve ever opened ChatGPT and felt baffled by the alphabet soup of model names – like GPT-4o, o3, o4-mini – you’re not alone. OpenAI (the company behind ChatGPT) doesn’t exactly make ...

OpenAI released two open-weight language models Tuesday that deliver performance matching its commercial offerings while ...

The models were trained using advanced methods combining reinforcement learning and techniques from OpenAI’s latest internal ...

For the first time since releasing GPT-2 over five years ago, OpenAI has introduced two open-weight AI models to the public.

OpenAI, as if trying to break its own record for the most confusing product lineup in history, has released two new AI models for ChatGPT: OpenAI o3 and OpenAI o4-mini. These join GPT-4.5, which ...

OpenAI said on Tuesday it has released two open-weight language models that excel in advanced reasoning and are optimized to ...

Since then, OpenAI has announced its new o3 and o4-mini reasoning models with improved performance in coding, math, and science tasks, in comparison to the o1 model.

OpenAI is calling the release its “most knowledgeable model yet,” but initially warned that GPT-4.5 is not a frontier model and might not perform as well as o1 or o3-mini.

OpenAI, as if trying to break its own record for the most confusing product lineup in history, has released two new AI models for ChatGPT: OpenAI o3 and OpenAI o4-mini. These join GPT-4.5, which ...