| Feature | dqt | Great Expectations | Soda | Elementary | Google Dataplex |
|---|---|---|---|---|---|
| Declarative checks | Yes | Yes | Yes | Yes | Yes |
| Statistical detectors | Yes 30+ | Basic | Basic | No | Basic |
| Outlier detection | Yes MAD, IQR, IF, ... | No | No | No | No |
| Drift detection | Yes KS, PSI, Wasserstein | No | No | Yes | Yes |
| Causal discovery | Yes Granger, PCMCI+ | No | No | No | No |
| Semantic layer | Yes Obsidian vault (Karpathy LLM Wiki pattern) | No | No | No | Yes |
| Column lineage | Yes sqlglot | No | No | Yes | Yes |
| AI explanations | Yes Claude | No | No | No | No |
| HTML reports | Yes | Data Docs | Partial | No | No |
| pip installable | Yes | Yes | Yes | Yes | No |
| Open-source | Yes MIT | Yes | Yes | Yes | No |