DeepSeek leads OpenRouter token volume for the week of October 12 with models like V4.1 Flash processing over 35T tokens in recent snapshots, far ahead of competitors, driving the 78.5% implied probability. Its low pricing, high-context MoE architecture, and strong performance on agentic workloads have fueled rapid adoption among developers routing through the platform, outpacing U.S. labs in raw usage even as proprietary models retain higher per-token revenue. Chinese labs including Z.ai, Xiaomi, and Tencent follow with competitive single-model volumes but trail in aggregate share. U.S. labs such as OpenAI, Anthropic, and Google post lower token totals on OpenRouter despite benchmark strength, reflecting routing preferences for cost and latency over raw capability. No major new releases appear imminent to shift the current pattern.