Karpathy says it is hard to convey how much programming changed in two months

Claim

Andrej Karpathy said it is hard to communicate how much programming has changed in the last two months, while GPT-5.3-Codex reached 86% on iBench and Moonlake introduced a world model maintaining state across physics, appearance and causality.

Reported metric: 86%

Reporting date: 2026-02-26 (not necessarily the event date)

Sources

Attribution and reporting linked by this record; links do not imply independent verification.

• Welcome to February 26, 2026 (theinnermostloop.substack.com)