Google’s October 13 launch of Gemini 4 Argon, its new frontier large language model optimized for long-horizon agentic coding, enterprise workflows, and complex reasoning with a 1M-token output limit, has driven trader consensus toward gemini-4-argon-high at 77.5% implied probability. The model posted leading results on the Vals Index and several coding and knowledge-work benchmarks shortly after release, outpacing recent Anthropic updates. Claude Opus 5.5, released in late September at lower cost, and the earlier Fable 5.1 hold smaller shares as traders weigh Gemini’s fresh enterprise traction and benchmark gains ahead of the October 26 resolution. No major competing releases are scheduled in the interim, though additional benchmark data could still shift positioning.