OpenAI’s next-generation language model, GPT-5, has been inadvertently revealed by GitHub. A now-deleted GitHub blog post briefly published on the platform confirmed that GPT-5 is not only real but is launching with four distinct model variants. The post described GPT-5 as offering major improvements in reasoning, code quality, and overall user experience.
The leak was first noticed by Reddit users, who spotted the new blog post before it was removed. Archived versions of the page show that GPT-5 includes enhancements aimed at advanced agentic behavior and is capable of handling complex coding tasks with minimal prompting. These improvements signal a shift toward more autonomous AI capabilities, particularly for developers and enterprise use cases.
According to the leaked post, GPT-5 will be available in four versions:
- gpt-5-chat: Built for natural, multimodal, and context-aware conversations
- gpt-5: Designed for logic and multi-step reasoning tasks
- gpt-5-mini: A lightweight version for cost-sensitive applications
- gpt-5-nano: Optimized for speed and low-latency use cases
Reports in recent weeks already indicated that OpenAI was preparing to launch GPT-5 in early August. The inclusion of mini and nano variants aligns with efforts to make the models more accessible through its API and usable across different device classes and latency requirements. Earlier this week, OpenAI employees had teased major developments, and CEO Sam Altman hinted at GPT-5’s arrival in social media posts over the weekend.
OpenAI has also scheduled a livestream event titled “LIVE5TREAM” for 10AM PT / 1PM ET, where the official GPT-5 announcement is expected to take place. This event follows the company’s recent release of two open-weight GPT-OSS models, including one designed to run locally on standard PCs.
The GPT-5 lineup represents a notable evolution of OpenAI’s platform strategy. By offering multiple models tuned for different performance and cost profiles, OpenAI is addressing a broader range of use cases from high-end enterprise solutions to edge deployment. With improved reasoning, minimal-prompt coding capabilities, and context-aware chat enhancements, GPT-5 could redefine expectations for general-purpose AI in 2025.
