GPT-5.6 leaks point to a 1.5M-token window

Unconfirmed OpenAI signals suggest GPT-5.6 may focus on longer context, slower but stronger reasoning, and agentic coding.

Leaks and user reports point to GPT-5.6 testing among ChatGPT Pro users, a possible 1.5 million-token context window, stronger agentic coding and a bidirectional voice model called GPT-Bidi-1.

The signal is not just the headline. It is how capital, regulation, infrastructure and user trust are being rearranged around AI.

Sources: TestingCatalog, Tech Times, Cryptopolitan, CocoLoop.