OpenAI has released a new prompting guide for its O-series models, specifically the o1 and o3-mini, which are designed for handling ambiguous tasks and multi-step reasoning. The guide emphasizes the importance of crafting clear and context-rich prompts while avoiding chain-of-thought instructions, which are unnecessary for these models as they reason internally. OpenAI President Greg Brockman highlighted key strategies for effective prompting, including clearly defining goals, specifying return formats, and identifying critical details to verify. This guidance aims to enhance the accuracy and usefulness of AI responses, catering to both developers and users of AI tools.