xAI
xAI · Radar signal

Grok 4.20 0309 Reasoning

Confirmed grok-4.20-0309-reasoning
Model page →

Confirmed by the vendor. First spotted by ModelBank Radar on 2026-10-16 08:56 UTC, 9 min before it appeared on official pages.

95Confidence / 100
First spotted (ModelBank)
+9 minEarly lead

Detection timeline

  1. Signal detected
    grok-4.20-0309-reasoning
  2. Signal detected
    grok-4.20-0309-reasoning
  3. Signal detected
    grok-4.20-0309-non-reasoning

Times are when the radar first recorded each signal. All signals come from public, official vendor channels.