Snowflake
LeaderSnowflake has invested more in AI-native features than any other data warehouse. Cortex AI lets agents query data in natural language, and the platform returns results alongside explanations of what the query did and why. The schema metadata is unusually rich: column descriptions, data lineage, and usage patterns are all accessible programmatically. For agents trying to understand unfamiliar data, this context matters. Semantic models add another layer: you can define business logic once and agents can query it without knowing the underlying table structures. The governance story is strong as well, with role-based access ensuring agents only see what they should. The tradeoff is cost. Snowflake credits add up fast, especially when agents are iterating on queries, and the exploration phase can get expensive quickly for teams with budget constraints.