Polymarket gives 74% odds next Grok model ships by end of November

Polymarket · x · 2026-10-24

Polymarket's contract for a Grok 4.8+ release by November 30 is trading at 76¢, implying a 74% chance the next xAI model ships within the month.

Context: xAI's 4-series cadence is fast — Grok 4.7 shipped September 21 after 4.5 and 4.6. Elon Musk said the 2.5-trillion-parameter Grok 4.8, trained on a new C++ stack, would finish pre-training that week before RL, but no official xAI announcement or API listing exists yet.

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