Trader sentiment on the next Grok model (4.8+) release reflects xAI’s recent monthly cadence—Grok 4.7 shipped September 21 after 4.6 in August—combined with Elon Musk’s September 14 update describing a 2.5-trillion-parameter model on a new C++ stack that had just finished pre-training and entered reinforcement learning. No official date or API listing has appeared as of late October, leaving traders weighing typical RL/safety timelines against Musk’s history of slippage. The spread across mid-to-late November dates and the sizable “no release by November 30” share captures uncertainty over whether the model clears internal benchmarks and competitive positioning versus Claude Opus-class systems before year-end.