TL;DR: Processing 3T+ tokens/day, OpenRouter has become a top LLM gateway as routing has shifted from developer convenience to security-sensitive AI infrastructure, with LiteLLM’s March breach accelerating the competition to build the trusted managed layer. Sacra estimates OpenRouter hit $50M in annualized revenue in March 2026, up from $19M at the end of 2025 (+1,840% YoY). For more, check out our full report and dataset on OpenRouter...