We are just hours away from OpenAI’s next flagship AI model, GPT-5 launch. However, ahead of the official release, details about the GPt-5 model were accidentally revealed. GitHub posted a new blog post (which is now deleted) that confirmed that GPT-5 will launch in four variants and highlighted major upgrades in reasoning, coding performance, and overall user experience.
While OpenAI has scheduled the official announcement for Thursday at 10 AM PT, the leaked blog post has already made its way across the internet, drawing attention from AI enthusiasts and developers alike.
According to the deleted blog, GPT-5 will be the most advanced model from OpenAI to date. It will be capable of handling complex code with minimal prompting, offering clearer explanations, and featuring improved agentic capabilities, essentially making it a more intelligent assistant and collaborative coding partner.
The leak revealed that GPT-5 will come in four variants, including GPT-5 which is said to be designed for logic-heavy and multi-step tasks; got-5-mini which is likely to be a smaller and more cost-efficient model; gpt-5-nano which is expected to be optimised for speed and low-latency use cases; and gpt-5-chat which is likely to be a context-aware, multimodal variant built for advanced enterprise-level conversations.
Interestingly, GitHub’s post mentioned that users will be able to try these models via the GitHub Models playground or API, and test them alongside other models from Cohere, DeepSeek, Meta, and Microsoft.
However, this is not the first sighting of GPT-5. Earlier this week, CEO Sam Altman teased the GPT-5 on X. In a recent post, Altman shared a screenshot from what appeared to be ChatGPT 5 recommending shows about artificial intelligence, subtly confirming that internal testing was already underway. Though now with the official launch just hours away, all eyes are on OpenAI to see how GPT-5 will raise the bar for generative AI and developer tools.
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