GPT 5.4 leaked? | 2M context window + persistent memory

GPT-5.4 about to drop and it's looking like a fucking beast:

2M context = you can paste codebase / novel into prompt and it understands the entire thing (in seconds)

persistent state = remembers literally *everything* about you (even across apps) you’ll never have to remind… https://t.co/UwaoeeRHCT

— Ejaaz (@cryptopunk7213) March 2, 2026