# Managed relational databases: what AI models recommend, September 2026

IT AI Recommendation Index, September 2026 Edition. Asked as "managed relational database service" and as "hosted SQL database", six framings each, to twelve models with search on, on behalf of a mid-market B2B company. Page: https://it-ai-index.com/it-data/managed-relational-databases/

**Standing:** Amazon RDS leads with 32% of first choices; verdict contested. 53 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| # | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | Amazon RDS | 32% | 22% | 59 |
| 2 | Google Cloud SQL | 11% | 15% | 53 |
| 3 | Amazon Aurora | 11% | 17% | 30 |
| 4 | DigitalOcean Managed Databases | 8% | 11% | 19 |
| 5 | Neon | 6% | 21% | 24 |
| 6 | Azure SQL Database | 4% | 15% | 40 |
| 7 | Supabase | 4% | 27% | 22 |
| 8 | AlloyDB for PostgreSQL | 2% | 0% | 13 |
| 9 | PlanetScale | 2% | 31% | 13 |

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

- Claude Haiku 4.5: Amazon RDS, Google Cloud SQL; alternatives Azure Database for PostgreSQL/MySQL
- GPT-5.4 mini: Amazon RDS; alternatives Azure SQL Database, Google Cloud SQL
- Gemini 3.5 Flash: Amazon Aurora, PlanetScale; alternatives AlloyDB for PostgreSQL, CockroachDB, Neon
- Perplexity Sonar: Amazon RDS; alternatives Amazon Aurora, Azure SQL Database
- Grok 4.1 Fast: Amazon RDS; alternatives Azure SQL Database, Google Cloud SQL
- Mistral Small: Amazon RDS; alternatives Google Cloud SQL, Kyndryl, Rackspace Technology
- DeepSeek V4 Flash: Amazon Aurora, Amazon RDS; alternatives Azure Database for PostgreSQL, Crunchy Bridge, Google Cloud SQL
- Llama 4 Maverick: Amazon Aurora, Amazon RDS, PostgreSQL; alternatives Ntirety, Rackspace Technology
- Qwen 3.7 Flash: Amazon Aurora, Amazon RDS; alternatives DigitalOcean Managed Databases, Supabase
- Kimi K2: Amazon RDS; alternatives Azure Database, Google Cloud SQL
- GLM 4.7 FlashX: Amazon RDS; alternatives Azure SQL Database, Google Cloud SQL, Scaleway
- MiniMax M2.5: Amazon RDS, Azure SQL Database; alternatives Google Cloud SQL, Ntirety, Rackspace Technology

## Sources the answers cite

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

- northflank.com: 22 answers, 26 citations
- cloudexpat.com: 21 answers, 21 citations
- worldmetrics.org: 20 answers, 29 citations
- aws.amazon.com: 19 answers, 32 citations
- tech-insider.org: 18 answers, 18 citations
- gitnux.org: 17 answers, 25 citations
- toolradar.com: 15 answers, 18 citations
- instaclustr.com: 13 answers, 17 citations

Pages named in the most answers:

- https://cloudexpat.com/compare/rds-vs-azure-sql-vs-cloud-sql (21 answers)
- https://tech-insider.org/aws-rds-vs-azure-database-vs-google-cloud-sql-2026 (17 answers)
- https://northflank.com/blog/best-database-providers (16 answers)
- https://algoroq.io/compare-tech/rds-vs-cloud-sql-vs-azure-sql (13 answers)
- https://auxiliar.ai/database (13 answers)
- https://aws.amazon.com/rds (13 answers)
- https://gitnux.org/service/managed-database (12 answers)
- https://toolradar.com/best/managed-databases (11 answers)
- https://infra.furybee.org/articles/managed-databases-compared (10 answers)
- https://worldmetrics.org/service/managed-database (10 answers)

## Warned against

- Amazon RDS: 13 of 59 labels negative. "Amazon has significantly less detailed documentation for AWS RDS limitations compared to Azure SQL.  AWS RDS SQL Server lacks the native backup solution for restoring a database to point in time" (Claude Haiku 4.5, negative prompt)
- Google Cloud SQL: 8 of 53 labels negative. "it may not be suitable for applications that require globally distributed transactional writes across multiple regions with strong consistency" (Llama 4 Maverick, negative prompt)
- Azure SQL Database: 6 of 40 labels negative. "Avoid the DTU model for any growing or modern production workload." (Gemini 3.5 Flash, negative prompt)
- Neon: 5 of 24 labels negative. "But for a mid-sized B2B company, I'd still usually choose a mainstream managed Postgres service first" (GPT-5.4 mini, paraphrase 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.