Best databases for web apps

We asked 10 models: The best databases for a new web application. Each named its own top 10.

Asked 4 ways: List request · Buyer asking for advice · Search query · Worth paying for?. Share of voice pools every wording.

Agreement between models

82%

Same model, run twice

87%

Different picks

18

When agreement between models is well below a model's agreement with itself, the split reflects real differences in taste rather than randomness.

The consensus

Each cell is the position that model gave the pick; blank means it left the pick off. Click a row for each model's reasoning.

#	Pick	Score	Listed by	Claude Haiku 5.5	GPT-6 Luna	Gemini 4 Argon	Qwen 3.8 Flash	DeepSeek V4 Pro	GLM-5.3	Kimi K3	MiniMax M3	Mistral Large 4	Nemotron 3 Ultra
1	PostgreSQL		10/10	1	1	1	1	1	1	1	1	1	1
2	MySQL		10/10	2	2	2	3	2	2	2	2	4	2
3	MongoDB		10/10	3	3	5	2	3	3	3	3	2	3
4	SQLite		10/10	4	4	4	8	4	4	5	4	5	5
5	Redis		10/10	5	5	6	6	5	5	4	5	3	4
6	Amazon DynamoDB		10/10	10	7	7	5	7	8	6	7	9	6
7	Supabase		7/10		8	3	4	6	7			6	8
8	MariaDB		5/10	8					6	7	6		7
9	Microsoft SQL Server		8/10	6	10		10	9		9	8	7	9
10	CockroachDB		3/10		6	8				10
11	Firebase Realtime Database		3/10				7	8			10
12	Oracle Database		2/10	7							9
13	PlanetScale		3/10		9	9						10
14	Amazon Aurora		2/10						10			8
15	Cloud Firestore		3/10			10	9						10

3 lower-scoring picks are not shown; every ballot below lists them in full.

Every ballot

Hover a pick to find it on the other ballots. Marked picks appear on no other ballot.

Claude Haiku 5.5

1. PostgreSQL
2. MySQL
3. MongoDB
4. SQLite
5. Redis
6. Microsoft SQL Server
7. Oracle Database
8. MariaDB
9. Firebase
10. Amazon DynamoDB

92% with consensus · 93% self-consistent

GPT-6 Luna

1. PostgreSQL
2. MySQL
3. MongoDB
4. SQLite
5. Redis
6. CockroachDB
7. Amazon DynamoDB
8. Supabase
9. PlanetScale
10. Microsoft SQL Server

94% with consensus · 90% self-consistent

Gemini 4 Argon

1. PostgreSQL
2. MySQL
3. Supabase
4. SQLite
5. MongoDB
6. Redis
7. Amazon DynamoDB
8. CockroachDB
9. PlanetScale
10. Cloud Firestore

86% with consensus · 84% self-consistent

Qwen 3.8 Flash

1. PostgreSQL
2. MongoDB
3. MySQL
4. Supabase
5. Amazon DynamoDB
6. Redis
7. Firebase Realtime Database
8. SQLite
9. Cloud Firestore
10. Microsoft SQL Server

80% with consensus · 84% self-consistent

DeepSeek V4 Pro

1. PostgreSQL
2. MySQL
3. MongoDB
4. SQLite
5. Redis
6. Supabase
7. Amazon DynamoDB
8. Firebase Realtime Database
9. Microsoft SQL Server
10. Neon

96% with consensus · 87% self-consistent

GLM-5.3

1. PostgreSQL
2. MySQL
3. MongoDB
4. SQLite
5. Redis
6. MariaDB
7. Supabase
8. Amazon DynamoDB
9. Firebase
10. Amazon Aurora

95% with consensus · 82% self-consistent

Kimi K3

1. PostgreSQL
2. MySQL
3. MongoDB
4. Redis
5. SQLite
6. Amazon DynamoDB
7. MariaDB
8. Elasticsearch
9. Microsoft SQL Server
10. CockroachDB

94% with consensus · 91% self-consistent

MiniMax M3

1. PostgreSQL
2. MySQL
3. MongoDB
4. SQLite
5. Redis
6. MariaDB
7. Amazon DynamoDB
8. Microsoft SQL Server
9. Oracle Database
10. Firebase Realtime Database

95% with consensus · 92% self-consistent

Mistral Large 4

1. PostgreSQL
2. MongoDB
3. Redis
4. MySQL
5. SQLite
6. Supabase
7. Microsoft SQL Server
8. Amazon Aurora
9. Amazon DynamoDB
10. PlanetScale

80% with consensus · 84% self-consistent

Nemotron 3 Ultra

1. PostgreSQL
2. MySQL
3. MongoDB
4. Redis
5. SQLite
6. Amazon DynamoDB
7. MariaDB
8. Supabase
9. Microsoft SQL Server
10. Cloud Firestore

95% with consensus · 84% self-consistent

Who agrees with whom

Overlap between two models' lists, weighted toward the top · 100 means identical · Color runs from 72 (lightest) to 97 (darkest)

	Claude Haiku 5.5	GPT-6 Luna	Gemini 4 Argon	Qwen 3.8 Flash	DeepSeek V4 Pro	GLM-5.3	Kimi K3	MiniMax M3	Mistral Large 4	Nemotron 3 Ultra
Claude Haiku 5.5		89	79	72	89	92	89	94	78	89
GPT-6 Luna	89		88	77	94	92	89	92	78	91
Gemini 4 Argon	79	88		78	87	84	80	82	72	82
Qwen 3.8 Flash	72	77	78		82	77	77	76	81	79
DeepSeek V4 Pro	89	94	87	82		93	89	93	81	92
GLM-5.3	92	92	84	77	93		90	95	79	93
Kimi K3	89	89	80	77	89	90		93	79	97
MiniMax M3	94	92	82	76	93	95	93		77	93
Mistral Large 4	78	78	72	81	81	79	79	77		81
Nemotron 3 Ultra	89	91	82	79	92	93	97	93	81