DeepSeek leads OpenRouter provider share with a 79.5% market-implied probability for the week of October 5, 2026, driven by sustained high token volume from its V4.1 Flash and related models, which deliver strong coding and agentic performance at competitive pricing. Recent OpenRouter snapshots through early October show DeepSeek holding roughly 23% share amid rising demand for efficient open-weight large language models, outpacing U.S. labs even as “Stealth” models like Space Bunny Alpha surge in daily rankings. Chinese providers overall benefit from cost advantages and developer adoption on the platform, while lower odds for OpenAI, Anthropic, Google, and others reflect their smaller routed API footprint relative to direct consumer apps. The outcome hinges on the week’s final token aggregation, with any late shifts in agent workloads or new model releases as potential swing factors.