GPT-5.6 Pro Leaks Expose a Massive Jump in AI Reasoning Power
TL;DR
Geeky Gadgets reports a leak about ChatGPT 5.6 Pro with a claimed June 25, 2026 release date; the article does not provide an official OpenAI confirmation. The main claim is a reasoning-effort budget jump from 768 to 960, meant to support longer planning, harder tasks and more capable agentic workflows. The report also mentions Playwright integration, stronger browser features, a December 2025 knowledge cutoff and testing through Kindle Alpha, Kepler Alpha and GPT-5.5 Pro accounts.
Nauti's Take
The interesting part is not the version number, but the claimed larger reasoning budget plus browser automation. That is exactly where Pro models need to justify their price: less demo magic, more reliable work execution.
At the same time, the report reads heavily like pre-launch hype. Without official data, benchmarks and real user testing, this is a signal, not proof.
Briefingshow
If the claims are accurate, this is less about a routine chatbot upgrade and more about longer, more stable work chains: planning, browser action, code testing and data extraction. That is where AI moves from answering questions to actually completing tasks. Because the source is leak-heavy and PR-flavored, skepticism is still required.