How OpenRouter Observes, Understands, and Acts on 740 Million LLM Requests a Day with ClickHouse Cloud
ClickHouse, Monday, November 2nd, 2026
OpenRouter uses ClickHouse Cloud as the single data store behind analytics, model rankings, AI agents and routing across 500+ models.
OpenRouter routes LLM requests to more than 500 models across over 80 providers based on user preferences such as price, quality, latency or throughput, and handles failover.
Since adopting ClickHouse Cloud in November 2024, its monthly requests have grown 33x to 19.7 billion, with more than 110 trillion tokens served weekly.
Senior data engineer Joe Ciesielski described at ClickHouse's Open House 2026 how the data powers customer analytics, public model rankings, internal agents and continuous routing evaluation.
The same data now also powers a router from TypeSafe AI that selects models based on real-world usage.