Amazon DynamoDBvsPostgreSQL
How 10 AI models weigh Amazon DynamoDB against PostgreSQL on the 1 buying question where both came up.
- Amazon DynamoDB
- 75%of answers named it
- PostgreSQL
- 77%of answers named it
- Placed higher
- 5–32times Amazon DynamoDB vs PostgreSQL, over 37 model rankings that listed either
- Models leaning
- 0–10toward Amazon DynamoDB vs PostgreSQL
Which models prefer which
Share of each model's answers that named each product, and how often its ranking put one above the other (a product listed beats one left off) · On the 1 shared question, every wording
| Model | Amazon DynamoDB | PostgreSQL | Placed higher | Leans |
|---|---|---|---|---|
| Claude Haiku 5.5 | 83% | 75% | 1–3 | PostgreSQL |
| GPT-6 Luna | 75% | 75% | 1–3 | PostgreSQL |
| Gemini 4 Argon | 92% | 75% | 1–3 | PostgreSQL |
| Qwen 3.8 Flash | 67% | 75% | 0–3 | PostgreSQL |
| DeepSeek V4 Pro | 42% | 75% | 0–3 | PostgreSQL |
| GLM-5.3 | 75% | 75% | 1–3 | PostgreSQL |
| Kimi K3 | 67% | 83% | 0–4 | PostgreSQL |
| MiniMax M3 | 83% | 83% | 0–4 | PostgreSQL |
| Mistral Large 4 | 75% | 75% | 1–3 | PostgreSQL |
| Nemotron 3 Ultra | 90% | 80% | 0–3 | PostgreSQL |
What the models say about Amazon DynamoDB
One reason per model, from the shared questions
- Claude Haiku 5.5
Fully managed, scales automatically with predictable low-latency key-value access.
- GPT-6 Luna
Fully managed NoSQL database excels at predictable, high-scale key-value access patterns.
- Gemini 4 Argon
Infinite serverless scalability and predictable performance for high-traffic applications on AWS.
- Qwen 3.8 Flash
Zero-ops scaling for high-traffic apps already on AWS.
- DeepSeek V4 Pro
Fully managed serverless key-value store that scales automatically on AWS.
- GLM-5.3
Serverless scaling with predictable latency at massive scale.
- Kimi K3
Serverless key-value scale with minimal operations on AWS-centric applications.
- MiniMax M3
Fully managed NoSQL with seamless AWS scaling and predictable latency.
- Mistral Large 4
Fully managed, serverless NoSQL with seamless AWS integration and auto-scaling.
- Nemotron 3 Ultra
Fully managed NoSQL at massive scale
What the models say about PostgreSQL
One reason per model, from the shared questions
- Claude Haiku 5.5
Robust, standards-compliant, feature-rich relational database with excellent ecosystem and extensibility.
- GPT-6 Luna
Best default for most web apps: reliable, feature-rich, and supported almost everywhere.
- Gemini 4 Argon
Unmatched versatility, reliability, and extension ecosystem make it the ultimate default choice.
- Qwen 3.8 Flash
Default choice: reliable, free, supports JSON, vector search, huge ecosystem.
- DeepSeek V4 Pro
Best all-around open-source RDBMS with unmatched reliability, extensibility, and community.
- GLM-5.3
Feature-rich, reliable relational standard; JSON support fits most web app needs.
- Kimi K3
Versatile open-source default with relational power, JSON support, and extensions.
- MiniMax M3
Robust, feature-rich, and the default choice for modern web apps.
- Mistral Large 4
Best open-source relational database: powerful, extensible, ACID-compliant, free.
- Nemotron 3 Ultra
Robust open-source SQL with advanced features
Tracked since October 25, 2026. Each time the panel answers these questions again, both shares are added here.
Question by question
Share of all answers that named each, every wording pooled, with its place among every product named · Both-named questions first
| Question | Amazon DynamoDB | PostgreSQL |
|---|---|---|
| Best databases for web apps | 75% #5 | 77% #2 |
| Best cloud data warehouses | · | 3% #16 |