OpenAI Releases Open Models under Apache 2.0

OpenAI has released two open models as part of that is now dubbed the gpt-oss series.

• gpt-oss-120b
• gpt-oss-20b

The first is more suited to data centers, the latter is more for laptop and personal use.

They are both trained on the harmony response format (if going through a provider like HuggingFace, Ollama or vLLM you don't need to worry about it - the provider will deal with the format).