GPT-5.6 Pro Leaks: Massive AI Reasoning Power Revealed

OpenAI is set to release ChatGPT 5.6 Pro on June 25, 2026. This new version significantly enhances AI reasoning power. The reasoning effort budget has increased from 768 to 960, allowing it to handle more intricate tasks and detailed planning. What's interesting is its integration of Playwright. This enables web automation functions like testing and data scraping, useful for technical and research applications. Its knowledge cutoff is now December 2025, supporting more current applications. The development included rigorous multi-phase testing with prototypes like Kindle Alpha and Kepler Alpha. This means the new ChatGPT 5.6 Pro will be capable of more complex and current tasks for users.