OpenAI's GPT-5.6 Luna model drove the overwhelming trader consensus at 99.4% implied probability by surging to roughly 41% of OpenRouter token volume in the week of September 7–13, 2026. Fresh usage data from OpenRouter and independent trackers such as tidelines.ai show the model processing 18T+ tokens daily, lifting OpenAI's overall lab share to 25.6%—well ahead of DeepSeek at 21.5% and other labs. This reflects strong developer preference for the model's capabilities in production workloads after recent capability gains. While the lead appears decisive, final resolution hinges on the precise weekly aggregation window; a sudden routing shift toward cheaper open-weight alternatives or an unexpected data revision could still narrow the gap before settlement.