Google’s Gemini 4 Argon, generally available since October 13 after its late-September announcement, drives the 79.5% market-implied odds through leading results on practical benchmarks such as the Vals Index, AutomationBench, DeepSWE v1.1, and long-context evaluations that emphasize multi-step coding, finance, legal, and enterprise workflows. Its 1-million-token context window and strong agentic performance position it ahead of rivals for the early-November snapshot. Anthropic’s Claude Opus 5.5 (September release) and Fable 5.1 (early September) trail at 4.9% and 0.5% because they posted competitive but narrower edges on the same tests, with no fresh model updates or benchmark shifts in the past month to alter trader consensus. With November 2 only days away, limited time remains for any surprise release to change the ranking.