# grok-4.3 edges gpt-5.4-nano on execution, not flash

> Source: <https://runtimewire.com/article/grok-4-3-edges-gpt-5-4-nano-on-execution-not-flash>
> Published: 2026-06-10 14:03:40+00:00

The score says nail biter — 33.8 to 33.4 — but the split is revealing. gpt 5.4 nano took both writing adjacent tasks: python log redaction fix and release delay customer email . In the log redaction task, B was simply more careful: it preserved separators and existing quotes better, and it dealt more explicitly with quoted JSON style values. In the customer email, B also had the stronger editorial instinct, matching the requested candid tone and laying out options more cleanly. But grok 4.3 w...