Tech Dev Notes
@techdevnotes · Mar 18, 2026
3 Grok build models are starting Training this weekend
How long will it take to finish Training and be ready for release ...
Elon Musk
@elonmusk
Grok 4.20.1 went live yesterday in a quiet release.
Point releases of 4.20 are rolling out every 3 or 4 days, sometimes with big improvements.
01:52 PM · March 18, 2026 · 238.1K views
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