10 buyer questions asked on ChatGPT, Gemini, Perplexity — 29 answers analysed, 2026-09-20. Ranked by how many answers named each product. MongoDB was named most often (22 of 29).
| # | Product | Answers naming it | Share of voice | % |
|---|---|---|---|---|
| 1 | MongoDB scored 82/100 | 22 |
|
76% |
| 2 | RavenDB | 13 |
|
45% |
| 3 | Couchbase Capella | 11 |
|
38% |
| 4 | Apache CouchDB | 10 |
|
34% |
| 5 | Amazon DocumentDB | 9 |
|
31% |
| 6 | Amazon DynamoDB | 9 |
|
31% |
| 7 | Google Cloud Firestore | 6 |
|
21% |
| 8 | Azure Cosmos DB | 5 |
|
17% |
| 9 | PostgreSQL | 5 |
|
17% |
Which one do the AI assistants actually name more often?
MongoDB vs RavenDBMongoDB vs Couchbase CapellaRavenDB vs Couchbase CapellaWe'll ask the same 10 questions about your product and show you which ones you're missing from. Takes about a minute — no account, no card.
Scanning in NoSQL document database — the same category as this table.
Method: each surface was asked the same 10 buyer questions; every answer was analysed for which products it named. Counts are mentions in answers, not endorsements. Nobody pays to be listed.