Azure AI Foundry says: How was the model trained? The gpt-oss models were pretrained primarily using synthetic data along with some heavily filtered real code.

Azure AI Foundry says: How was the model trained? The gpt-oss models were pretrained primarily using synthetic data along with some heavily filtered real code. The models were then post-trained using distillation (RLKD against o3/hailmary) and berry. For more details about the model training process, please refer to the documentation. Meaning the author was spot on.