GitHub inadvertently revealed details about OpenAI's upcoming GPT-5 models in a prematurely published blog post. The post, quickly taken down, outlined four GPT-5 variants, each designed for specific applications. GPT-5 itself focuses on logic and multi-step tasks, while gpt-5-mini is a cost-effective alternative. Gpt-5-nano prioritizes speed for low-latency applications. The leaked information highlighted significant advancements in reasoning, code quality, user experience, enhanced agentic capabilities, and the ability to manage complex coding tasks with minimal prompting. The accidental announcement, spotted by Reddit users, suggests a potential near-term release for the new models.