**Chinese labs dominate recent OpenRouter token usage rankings, but OpenAI holds a competitive edge for third place in market share metrics.** For the week of October 12, 2026, OpenRouter data through October 11–13 shows DeepSeek models (especially V4.1 Flash) leading token volume at roughly 31–42% share, followed by Z.ai (Zhipu/GLM 5.3 Flash) around 10–16%. Xiaomi’s MiMo-V2.6-Flash sits third in several model leaderboards with strong growth, while OpenAI’s GPT-6 Luna ranks around sixth in tokens but contributes to a lab-level share near 10% in some snapshots. Other notable movers include Tencent (Hy4), StepFun, and Nvidia’s free Nemotron tier. Market share calculations on OpenRouter often emphasize request volume or provider-level aggregation rather than raw tokens, creating room for OpenAI to rank higher than pure token volume suggests. The end of a high-volume anonymous “Space Bunny” free trial in early October shifted traffic, benefiting established labs. Low-priced open-weight Chinese models continue driving developer routing for high-volume workloads, while OpenAI and Anthropic retain traction in premium or specific use cases. These dynamics explain the market-implied odds favoring OpenAI near 60% for #3, with several labs (including likely Z.ai and Xiaomi) clustered around 50%, Google in the mid-30s, and smaller players (MiniMax, DeepSeek, Anthropic, Meta, xAI) at very low single digits. Weekly fluctuations in free-tier usage, new model releases, and pricing changes remain key swing factors for the final resolution.