OpenAI just dropped its first open-weight models in over five years. The two language models, gpt-oss-120b and gpt-oss-20b, can run locally on consumer devices and be fine-tuned for specific purposes.

Jake Peterson is Lifehacker’s Tech Editor, and has been covering tech news and how-tos for nearly a decade. His team covers all things technology, including AI, smartphones, computers, game consoles, ...

OpenAI’s new, powerful open weights AI large language model (LLM) family gpt-oss was released less than two weeks ago under a permissive Apache 2.0 license — the company’s first open weights model ...

Jake Peterson is Lifehacker’s Tech Editor, and has been covering tech news and how-tos for nearly a decade. His team covers all things technology, including AI, smartphones, computers, game consoles, ...

Back in August 2025, when OpenAI unveiled GPT-5, it also introduced GPT-5 Mini and GPT-5 Nano, two smaller language models designed for high-volume workloads. Since then, OpenAI has rolled out several ...

OpenAI is getting back to its roots as an open source AI company with today's announcement and release of two new, open source, frontier large language models (LLMs): gpt-oss-120b and gpt-oss-20b. The ...

OpenAI says GPT-5 is rolling out to all users, replacing previous models with immediate effect ChatGPT now includes automatic model routing via GPT-5 models Enterprise APIs still include access to ...

On Thursday, OpenAI announced GPT-5 and three variants—GPT-5 Pro, GPT-5 mini, and GPT-5 nano—what the company calls its “best AI system yet,” with availability for some of the models across all ...

Analysis For all the superlative-laden claims, OpenAI's new top model appears to be less of an advancement and more of a way to save compute costs — something that hasn't exactly gone over well with ...