Gradient Dissent: Conversations on AI Why Netflix, Uber, and Spotify Never Lag: The Database Nobody Talks About | Aaron Katz
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Mar 31, 2026 
Aaron Katz, CEO of ClickHouse Inc., the leader who commercialized the ClickHouse analytics database. He discusses ClickHouse’s origin at Yandex, scaling a cloud service used by top AI companies, the move toward agent-first infrastructure, pricing and go-to-market choices, and competing with incumbents like Datadog and Snowflake.
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Forming ClickHouse Inc From Open Source
- Aaron Katz formed ClickHouse Inc. by partnering with the original committers and converting the open source project into a managed cloud service.
- He raised a $50M seed with no product or revenue by recruiting core committers from Yandex and Google and designing ClickHouse Cloud for bursty analytical workloads.
Open Source Adoption Is Pre-Product Traction
- The open source user base and core committers give a startup a head start that justifies early heavy investment.
- Thousands of companies were already using ClickHouse and employing committers ensured control of roadmap and faster adoption of a managed service.
AI Skepticism Mirrors Early Cloud Doubts
- Aaron Katz draws a parallel between early cloud skepticism and current AI skepticism: incumbents dismiss paradigm shifts until adoption proves them wrong.
- He argues AI adoption is happening far faster than SaaS did and skeptics will be proven wrong similarly to Siebel vs Salesforce.