# NoSQL databases for small business buyers: what AI models recommend, September 2026

IT AI Recommendation Index, September 2026 Edition. Asked as "NoSQL database" and as "document or key-value database service", six framings each, to twelve models with search on, on behalf of a small B2B company. Page: https://it-ai-index.com/it-data/nosql-databases/smb/

**Standing:** MongoDB leads with 77% of first choices; verdict clear leader. 52 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| # | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | MongoDB | 77% | 9% | 74 |
| 2 | Google Cloud Firestore | 8% | 4% | 23 |
| 3 | PostgreSQL | 4% | 0% | 23 |
| 4 | Amazon DynamoDB | 2% | 17% | 54 |
| 5 | Redis | 2% | 13% | 45 |
| 6 | Couchbase | 2% | 28% | 25 |
| 7 | Apache CouchDB | 0% | 23% | 13 |
| 8 | Neo4j | 0% | 37% | 19 |
| 9 | ScyllaDB | 0% | 70% | 10 |
| 10 | Apache HBase | 0% | 90% | 10 |
| 11 | Apache Cassandra | 0% | 62% | 37 |

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: MongoDB, PostgreSQL; alternatives Google Cloud Firestore
- GPT-5.4 mini: MongoDB; alternatives Amazon DynamoDB, Couchbase
- Gemini 3.5 Flash: MongoDB; alternatives Amazon DynamoDB, Google Cloud Firestore / Firebase, PostgreSQL
- Perplexity Sonar: MongoDB; alternatives Amazon DynamoDB, RavenDB, Redis
- Grok 4.1 Fast: MongoDB; alternatives Amazon DynamoDB, Apache Cassandra, Google Cloud Firestore, Redis
- Mistral Small: MongoDB; alternatives Firebase, restdb.io
- DeepSeek V4 Flash: MongoDB; alternatives PostgreSQL
- Llama 4 Maverick: no first choice
- Qwen 3.7 Flash: MongoDB; alternatives Amazon DynamoDB, Google Cloud Firestore, Neo4j
- Kimi K2: RavenDB; alternatives MongoDB, PostgreSQL
- GLM 4.7 FlashX: MongoDB; alternatives Amazon DynamoDB, Azure Cosmos DB, Google Cloud Firestore, Redis
- MiniMax M2.5: MongoDB; alternatives Firebase, RavenDB

## Sources the answers cite

54 of 72 answers came back with a source list, from 12 of 12 models. Sites named in the most answers:

- sourceforge.net: 27 answers, 30 citations
- guideflow.com: 24 answers, 24 citations
- g2.com: 21 answers, 34 citations
- aerospike.com: 21 answers, 21 citations
- mongodb.com: 14 answers, 19 citations
- pingcap.com: 14 answers, 14 citations
- thectoclub.com: 13 answers, 13 citations
- 1bench.dev: 11 answers, 11 citations

Pages named in the most answers:

- https://guideflow.com/blog/nosql-database-software (24 answers)
- https://sourceforge.net/software/nosql-database/for-small-business (21 answers)
- https://aerospike.com/blog/ten-best-nosql-cloud-databases (19 answers)
- https://pingcap.com/article/top-10-nosql-databases-to-consider-2024 (14 answers)
- https://thectoclub.com/tools/best-nosql-database (13 answers)
- https://g2.com/categories/nosql-databases (12 answers)
- https://aws.amazon.com/smart-business/resources-for-smb/sql-vs-nosql (9 answers)
- https://datavid.com/blog/best-nosql-databases (9 answers)
- https://1bench.dev/databases/nosql (8 answers)
- https://alex-klaus.com/reasons-not-to-nosql (8 answers)

## Warned against

- Apache Cassandra: 23 of 37 labels negative. "Databases like Apache Cassandra and HBase require significant expertise.... introduce operational complexity that small teams may struggle to manage." (MiniMax M2.5, negative prompt)
- Apache HBase: 9 of 10 labels negative. "Best avoided unless you already operate Hadoop infrastructure, which most small businesses don't." (DeepSeek V4 Flash, negative prompt)
- Amazon DynamoDB: 9 of 54 labels negative. "should be cautious about or avoid include those that are not suitable for simple needs, such as key-value databases like Amazon DynamoDB" (Llama 4 Maverick, negative prompt)
- Neo4j: 7 of 19 labels negative. "Graph Databases (e.g., Neo4j) ... Why to Avoid: Query Complexity ... Cost & Resources" (Qwen 3.7 Flash, negative prompt)

## Record

- Method: https://it-ai-index.com/methodology/
- Raw judge labels and full responses: https://it-ai-index.com/data/
- License: CC BY 4.0. Cite as IT AI Recommendation Index, September 2026 Edition, it-ai-index.com.