Google’s October 13 global launch of Gemini 4 Argon, its latest frontier large language model, has driven trader consensus toward an 88.5% implied probability for the “gemini-4-argon-high” outcome. The model’s expanded 1M-token output limit, strong results on Vals Index economic-impact benchmarks, and DeepSWE software-engineering scores position it ahead of Anthropic’s September releases—Claude Opus 5.5 and Fable 5.1—on complex, multi-step tasks in coding, finance, legal, and cybersecurity. Early enterprise testing and immediate API availability reinforce perceptions of readiness ahead of the October 19 resolution. Low probabilities for the Claude variants reflect their slightly earlier launches and comparatively narrower leads on the same real-world workloads.