Elon Musk
@elonmusk
This is actually a major Grok upgrade, but we decided to release it quietly this time.
Gave us time to smooth out the rough edges.
Mario Nawfal@MarioNawfal· Nov 7, 2025GROK JUST GOT A WHOLE LOT SMARTER
xAI quietly patched Grok-4-Fast... and the before/after is wild.
“Reasoning” mode jumped from 77.5% to 94.1% complete responses.
“Non-reasoning”? Up to a staggering 97.9%.
All thanks to one thing: better injected system prompts.
No press
09:03 AM · November 8, 2025 · 9.6M views
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