OpenAI is rumored to be announcing GPT-5 later today, and a new leak has given us a sneak peek at what the company might be announcing.
Software platform GitHub published a now-deleted blog post yesterday that says GPT-5 likely includes four models. The fact that it was removed suggests it was published by mistake (and is accurate). The post, first spotted by Reddit users and The Verge, is now visible as an archive.
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GitHub’s post said, “GPT-5 is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience. It handles complex coding tasks with minimal prompting, provides clear explanations, and introduces enhanced agentic capabilities, making it a powerful coding collaborator and intelligent assistant for all users.”
The blog post also details four new models, with these descriptions:
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gpt-5: Designed for logic and multi-step tasks.
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gpt-5-mini: A lightweight version for cost-sensitive applications.
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gpt-5-nano: Optimized for speed and ideal for applications requiring low latency.
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gpt-5-chat: Designed for advanced, natural, multimodal, and context-aware conversations for enterprise applications.
As with all leaks, take this information with a grain of salt until we hear directly from OpenAI. Employees have spent the last couple of weeks teasing a major update, and the company is hosting a “LIVE5TREAM” event at 10 a.m. PT / 1 p.m. ET today.
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This morning, OpenAI tweeted “Dropping soon,” with an image that seems to show GPT-4o rolling over to GPT-5.
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Disclosure: Ziff Davis, PCMag’s parent company, filed a lawsuit against OpenAI in April 2025, alleging it infringed Ziff Davis copyrights in training and operating its AI systems.
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About James Peckham
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