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

Gane 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://www.gane.ai/index/it/it-data/nosql-databases/2026-09/smb

This is the permanent record of the September 2026 Edition, published September 17, 2026 and superseded since. The current standing: https://www.gane.ai/index/it/it-data/nosql-databases/smb/index.md

**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

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [MongoDB](https://www.gane.ai/index/it/vendors/mongodb/index.md) | 77% | 9% | 74 |
| 2 | [Google Cloud Firestore](https://www.gane.ai/index/it/vendors/google-cloud-firestore/index.md) | 8% | 7% | 29 |
| 3 | [PostgreSQL](https://www.gane.ai/index/it/vendors/postgresql/index.md) | 4% | 0% | 23 |
| 4 | [Amazon DynamoDB](https://www.gane.ai/index/it/vendors/amazon-dynamodb/index.md) | 2% | 17% | 54 |
| 5 | [Redis](https://www.gane.ai/index/it/vendors/redis/index.md) | 2% | 13% | 45 |
| 8 | [Couchbase](https://www.gane.ai/index/it/vendors/couchbase/index.md) | 2% | 28% | 25 |
| 11 | [Apache CouchDB](https://www.gane.ai/index/it/vendors/apache-couchdb/index.md) | 0% | 23% | 13 |
| 29 | [Neo4j](https://www.gane.ai/index/it/vendors/neo4j/index.md) | 0% | 37% | 19 |
| 42 | [ScyllaDB](https://www.gane.ai/index/it/vendors/scylladb/index.md) | 0% | 70% | 10 |
| 43 | [Apache HBase](https://www.gane.ai/index/it/vendors/apache-hbase/index.md) | 0% | 90% | 10 |
| 44 | [Apache Cassandra](https://www.gane.ai/index/it/vendors/apache-cassandra/index.md) | 0% | 62% | 37 |

Rank is by share of first choices among all 44 products named; products with the same share are tied, and the order among them carries no meaning. The table lists those with at least 10 labels.

## 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, PostgreSQL
- Perplexity Sonar: MongoDB; alternatives Amazon DynamoDB, RavenDB, Redis
- Grok 4.20: 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: 25 answers, 25 citations
- aerospike.com: 23 answers, 23 citations
- g2.com: 21 answers, 34 citations
- mongodb.com: 17 answers, 22 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 (25 answers)
- https://aerospike.com/blog/ten-best-nosql-cloud-databases (21 answers)
- https://sourceforge.net/software/nosql-database/for-small-business (21 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://www.gane.ai/index/it/methodology
- License: CC BY 4.0. Cite as Gane Index, September 2026 Edition, www.gane.ai/index/it.