OpenAI has announced the release of the full version of its o1 reasoning model as well as the release of its video generation model Sora. The o1 announcement also included the announcement of a separate fine-tuning API as well. O1’s chain-of-thought technique enables the model to generate complex, step-by-step thought processes before delivering responses, making it highly adept at tasks requiring nuanced reasoning. The models are trained on a mix of public, proprietary, and custom datasets. The different approach uses slower, more deliberate reasoning. o1 on the API also allows developers to specify a custom developer message that is included with every prompt from their end users. Safety remains a cornerstone of the o1 series, with several evaluations being rolled out to avoid jailbreak attempts and biased behavior. OpenAI’s published evaluations show o1 outperforming GPT-4o ability to avoid overrefusal in benign contexts. The model’s reasoning capabilities extend to maintaining adherence to OpenAI’s Instruction Hierarchy, ensuring that system directives take precedence over developer and user prompts. Despite these advances, challenges persist, particularly in areas like multimodal inputs, where achieving precise refusal boundaries is still a work in progress.

Full report : OpenAI release Sora and full version of o1 reasoning model with fine-tuning.