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

Gane Index, October 2026 Edition. Asked as "NoSQL database" and as "document or key-value database service", six framings each, to fourteen models with search on, on behalf of a small B2B company. Page: https://www.gane.ai/index/it/it-data/nosql-databases/2026-10/smb

This is the permanent record of the October 2026 Edition, published October 1, 2026 and superseded since. The current standing: https://www.gane.ai/index/it/it-data/nosql-databases/smb/index.md

**Standing:** MongoDB leads with 69% of first choices; verdict clear leader. 62 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) | 69% | 12% | 82 |
| 2 | [Amazon DynamoDB](https://www.gane.ai/index/it/vendors/amazon-dynamodb/index.md) | 11% | 18% | 60 |
| 3 | [Google Cloud Firestore](https://www.gane.ai/index/it/vendors/google-cloud-firestore/index.md) | 6% | 3% | 32 |
| 4 | [PostgreSQL](https://www.gane.ai/index/it/vendors/postgresql/index.md) | 5% | 0% | 25 |
| 5 | [Couchbase](https://www.gane.ai/index/it/vendors/couchbase/index.md) | 2% | 23% | 31 |
| 6 | [Apache CouchDB](https://www.gane.ai/index/it/vendors/apache-couchdb/index.md) | 2% | 15% | 13 |
| 7 | [Azure Cosmos DB](https://www.gane.ai/index/it/vendors/azure-cosmos-db/index.md) | 2% | 27% | 11 |
| 10 | [Redis](https://www.gane.ai/index/it/vendors/redis/index.md) | 0% | 16% | 51 |
| 45 | [Neo4j](https://www.gane.ai/index/it/vendors/neo4j/index.md) | 0% | 33% | 15 |
| 60 | [Apache Cassandra](https://www.gane.ai/index/it/vendors/apache-cassandra/index.md) | 0% | 58% | 36 |

Rank is by share of first choices among all 60 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: Google Cloud Firestore, MongoDB; alternatives Amazon DynamoDB, PostgreSQL
- GPT-5.4 mini: MongoDB; alternatives Amazon DynamoDB, Google Cloud Firestore
- Gemini 3.5 Flash: Amazon DynamoDB, MongoDB; alternatives Google Firebase Firestore, PostgreSQL
- Perplexity Sonar: MongoDB; alternatives Amazon DynamoDB, Azure Cosmos DB, Redis
- Grok 4.20: MongoDB; alternatives Amazon DynamoDB, Apache Cassandra, Redis
- Mistral Small: Amazon DynamoDB; alternatives Apache Cassandra, MongoDB, Redis
- DeepSeek V4 Flash: MongoDB; alternatives Amazon DynamoDB, RavenDB
- Llama 4 Maverick: no first choice
- Qwen 3.7 Flash: PostgreSQL; alternatives Amazon DynamoDB, MongoDB
- Kimi K2: MongoDB; alternatives Amazon DynamoDB, PostgreSQL
- GLM 4.7 FlashX: MongoDB; alternatives Amazon DynamoDB, Couchbase
- MiniMax M2.5: MongoDB; alternatives Amazon DynamoDB, Couchbase
- GPT-6 Luna: MongoDB; alternatives Amazon DynamoDB, PostgreSQL
- Muse Glimmer 30B: MongoDB; alternatives Google Cloud Firestore

## Sources the answers cite

67 of 84 answers came back with a source list, from 14 of 14 models. Sites named in the most answers:

- aws.amazon.com: 27 answers, 35 citations
- thectoclub.com: 26 answers, 27 citations
- sourceforge.net: 25 answers, 31 citations
- us.fitgap.com: 25 answers, 30 citations
- guideflow.com: 25 answers, 25 citations
- mongodb.com: 23 answers, 37 citations
- g2.com: 17 answers, 31 citations
- couchbase.com: 15 answers, 32 citations

Pages named in the most answers:

- https://guideflow.com/blog/nosql-database-software (25 answers)
- https://thectoclub.com/tools/best-nosql-database (24 answers)
- https://aws.amazon.com/smart-business/resources-for-smb/sql-vs-nosql (17 answers)
- https://us.fitgap.com/search/nosql-databases/small-business (16 answers)
- https://aerospike.com/blog/ten-best-nosql-cloud-databases (13 answers)
- https://daily.dev/blog/top-10-nosql-dbaas-providers-2024 (12 answers)
- https://peerspot.com/categories/nosql-databases (12 answers)
- https://couchbase.com/blog/nosql-database-evaluation-guide (11 answers)
- https://instaclustr.com/education/nosql-database/nosql-databases-types-use-cases-and-8-databases-to-try (11 answers)
- https://pingcap.com/article/top-10-nosql-databases-to-consider-2024 (11 answers)

## Warned against

- Apache Cassandra: 21 of 36 labels negative. "Overly complex to cluster and maintain. Built for petabyte-scale data and massive throughput—useless if you have fewer than millions of records." (Qwen 3.7 Flash, negative prompt)
- MongoDB: 10 of 82 labels negative. "High Caution: MongoDB (Due to Licensing)... Vendor lock-in risk with escalating costs" (Kimi K2, negative prompt)
- Amazon DynamoDB: 11 of 60 labels negative. "Avoid paid enterprise platforms like Cosmos DB, DynamoDB, or Enterprise editions" (Perplexity Sonar, budget prompt)
- Apache HBase: 7 of 8 labels negative. "Requires a full Hadoop ecosystem (HDFS, Zookeeper, RegionServers), which is overkill for most small‑business workloads" (MiniMax M2.5, negative prompt)

## Movement since September 2026

Floor: 11 points of share, measured on the calibration repeat.
Same leader: MongoDB at 66%.

- MongoDB: 77% to 66%, −11. Cleared the floor by 0 points · rank 1 of 59, unchanged.
- Amazon DynamoDB: 2% to 12%, +10. Inside the floor by 1 point · rank 4 → 2 of 59.
- Apache CouchDB: 0% to 2%, +2. Inside the floor by 9 points · rank 11 → 6 of 59.
- Azure Cosmos DB: 0% to 2%, +2. Inside the floor by 9 points · rank 12 → 7 of 59.
- Redis: 2% to 0%, −2. Inside the floor by 9 points · rank 5 → 10 of 59.
- Google Cloud Firestore: 8% to 7%, −1. Inside the floor by 10 points · rank 2 → 3 of 59.
- PostgreSQL: 4% to 5%, +1. Inside the floor by 10 points · rank 3 → 4 of 59.
- Couchbase: 2% to 2%, ±0. Inside the floor by 11 points · rank 8 → 5 of 59.
- Neo4j: 0% to 0%, ±0. Inside the floor by 11 points · rank 29 → 52 of 59.
- ScyllaDB: 0% to 0%, ±0. Inside the floor by 11 points · rank 42 → 57 of 59.
- Apache HBase: 0% to 0%, ±0. Inside the floor by 11 points · rank 43 → 58 of 59.
- Apache Cassandra: 0% to 0%, ±0. Inside the floor by 11 points · rank 44 → 59 of 59.

## Record

- Method: https://www.gane.ai/index/it/methodology
- License: CC BY 4.0. Cite as Gane Index, October 2026 Edition, www.gane.ai/index/it.