OpenRouter's token volume for the week of September 28 reflects intense competition among efficient Chinese large language models and emerging anonymous entrants, with trader odds clustered tightly around 155-170T. DeepSeek V4.1 Flash and GLM 5.3 Flash sustained leadership through competitive pricing and strong coding performance, while Space Bunny Alpha's rapid climb after its September 23 launch—leveraging 1M-token context, multimodal inputs, and adjustable reasoning—drove volatility in weekly totals. Broader momentum stems from rising agentic workloads, open-weight model adoption exceeding 60% share, and platform-wide growth exceeding 10x year-over-year, tempered by potential last-minute shifts from new releases or usage spikes in programming tasks.