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Tools
Semantic & metrics layers
6 tools compared: how each is priced, where it runs, and what to consider instead.
| Tool | Pricing model | Free tier | Open source |
|---|---|---|---|
| AtScale Universal semantic layer that models metrics once on top of a cloud data warehouse and exposes them to any BI tool without data movement. | Quote only | No | No |
| Cube Open-source headless semantic layer that defines metrics once and serves them via SQL, REST, and GraphQL APIs to any BI tool or app. | Subscription | Yes | Yes |
| Honeydew Snowflake-native semantic layer that compiles governed metric and dimension definitions for BI tools and AI agents. | Subscription | No | No |
| Malloy Open-source modeling and query language that compiles to SQL, letting analysts define reusable metrics and explore data without repeating joins. | Open source + paid | Yes | Yes |
| MetricFlow Open-source engine that compiles YAML metric definitions into SQL, and powers the dbt Semantic Layer. | Open source + paid | Yes | Yes |
| Propel GraphQL metrics API platform for embedding customer-facing analytics and reports directly into a product. | Quote only | No | No |