Sam Altman said that OpenAI's new GPT-oss, comprising a 120b and 20b version, is the "best and most usable open model in the ...

ChatGPT reaches 700 million weekly users as OpenAI prepares to launch GPT-5 with integrated reasoning capabilities in August ...

When ChatGPT first rose to popularity in November 2022, it was running on GPT-3.5. OpenAI then released GPT-4 in March 2023, ...

OpenAI and NVIDIA launch open-weight AI models optimized for reasoning, available to developers worldwide at full scale.

PT-OSS is OpenAI’s first open-weight model in six years. OpenAI is releasing a new open-weight model dubbed GPT-OSS that can be downloaded for free, be customized, and even run on a laptop.

Since the release of GPT-2, OpenAI has steadily shifted toward a more closed and proprietary approach to its LLM development — until now. The recent release of open-weight models marks a notable ...

Openai is making O3 level capabilities open source ahead of the release of GPT-5 in about two days. These open source models ...

And while these two models don't represent the push into the era of GPT-5, OpenAI chief Sam Altman has teased that even more ...

By lowering barriers to access and enabling customization, GPT‑OSS opens new doors for startups, researchers, and ...

For the first time in more than five years, OpenAI is launching a new open language model that appears to be state-of-the-art ...

In a major shift, the company is “open sourcing” two A.I. systems, freely sharing the technology with outside researchers and ...

For the first time in five years, OpenAI has released two new free and open-source AI models that are lightweight and ...