I'm thrilled @OpenAI has released two open weight models. Thank you to all my friends at OpenAI for this gift! I'm also encouraged that from my quick tests gpt-oss-120b looks strong (though we should still wait for rigorous 3rd party evals).
OPEN SOURCE
-
GPT-OSS Models Now Available in AI SDK Playground
By
–
Both gpt-oss-120b and gpt-oss-20b are now in @aisdk and you can test them nicely side-by-side in the AI SDK playground. ▲
-
US Open Weight Models Lead: Sustainability or One-Off Advantage?
By
–
The US now likely has the leading open weights models (or close to it)… … but the real question is whether this is a one-off situation from OpenAI, in which case the lead will evaporate quickly as others catch up. But also unclear what their incentives are to keep updating.
-
Running AI Models Locally and via APIs with LM Studio
By
–
My full piece on the models, including various pelicans on bicycles and detailed notes on running them on my own laptop using @lmstudio and @ollama – and via API using @openrouter and @cerebras
-
OpenAI Open Weights Models Rival Chinese AI Labs
By
–
Here's the concluding section of my write-up of the new OpenAI open weights models – they're really impressive, and I think they hold their own (or even beat) the models we've seen come out of the various Chinese AI labs over the past few months
-
$500K Red Teaming Challenge Launches for Open Source Safety
By
–
We’re launching a $500K Red Teaming Challenge to strengthen open source safety. Researchers, developers, and enthusiasts worldwide are invited to help uncover novel risks—judged by experts from OpenAI and other leading labs.
-
OpenAI’s Open Weight Models Now Available on Replicate
By
–
OpenAI's open weight models are on Replicate, day 0!
— Replicate (@replicate) 5 août 2025
gpt-oss-120b: https://t.co/Xq6gupjErK
gpt-oss-20b: https://t.co/Htwem1Yy3G pic.twitter.com/3taGGU6leSOpenAI's open weight models are on Replicate, day 0! gpt-oss-120b: http://
replicate.com/openai/gpt-oss
-120b
…
gpt-oss-20b: http://
replicate.com/openai/gpt-oss
-20b
… -
GPT OSS Tool Enables AI Research Paper Analysis
By
–
Introducing GPT OSS for understanding research papers 🚀
— alphaXiv (@askalphaxiv) 5 août 2025
Highlight any section of a paper to ask questions and “@” other papers for quick context, comparisons, and benchmark references pic.twitter.com/9BGeZspAb2Introducing GPT OSS for understanding research papers Highlight any section of a paper to ask questions and “@” other papers for quick context, comparisons, and benchmark references
-
OpenAI GPT becomes open source on Hugging Face
By
–
More info here: https://
huggingface.co/blog/welcome-o
penai-gpt-oss
…! -
GPT-OSS: Try Open Source Language Models Live Online
By
–
Try it live here → https://
gpt-oss.com You’ll also find instructions to download and run the models locally with your favorite tool — @huggingface
, @ollama
, or @lmstudio
. Unless you have a MacBook M3 Ultra or M4 Max with 128 GB RAM, start with the smaller gpt-oss-20b!