AWS Glue and Weld side by side: price, connectors and features, where each one is the better choice, and what Weld replaces.
AWS Glue
WeldAn animation of the migration. Your apps and databases sync through AWS Glue while Weld's team maps every connector, then both run in parallel into your warehouse until the row counts match, and finally AWS Glue is switched off while Weld keeps syncing and orchestrates the dbt run after each sync.
AWS Glue is a fully managed, serverless ETL platform from AWS that automates data discovery, cataloging, and transformation using the Glue Data Catalog and Apache Spark (PySpark/Scala). Weld puts ingestion, transformations, orchestration and reverse ETL in one product, with 300+ connectors built in house.
You want a service native to the cloud you already run on.
You want ingestion, transformations, orchestration and reverse ETL in one product, on one bill.
To cover what Weld does, a team running AWS Glue adds another tool, each set up and monitored on its own.
| Capability | Weld | AWS Glue |
|---|---|---|
| Starting price | From $99/mo, billed annually | $0.44 per DPU-hour (plus job runtime costs) |
| Free tier | Free trial | Included |
| Connectors | 300+ | 50+ |
| Reverse ETL | Included | Not offered |
| Fastest sync frequency | 5 min | Event-driven |
| Log-based CDC | Included, Business add-on or Enterprise | Included |
| History tables (SCD) | Included, from Business | Not offered |
| dbt Cloud | Included | Not offered |
| AI and agents | Native AI agent, MCP server, Connect API | Not offered |
| MCP server | Included, from Premium | Not offered |
| REST / OpenAPI | Included | Not offered |
| Version control | Included | Not offered |
| G2 rating | 4.8 | 4.1 |
| Start for free | Book a demo |
Both include: data ingestion (ELT), full refresh, incremental, transformations, dbt Core, CLI, orchestration, data lineage.
Every plan starts with a 14-day free trial. Connect a source and a warehouse, and your first sync runs the same day. If you would rather see it first, a data engineer will walk you through it on your own setup.
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