ClickHouseThe leading database for AI
vs
DuckDBSimple, feature-rich, fast and open source analytical SQL database.
Comparison · Data Warehouse · weekly run Nov 3
ClickHouse vs DuckDB
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
ClickHouse is the stronger AI pick in Data Warehouse: it has a visibility score of 16.5 versus 9.9 for DuckDB, and ranks ahead in 69% of the answers that name both.
Choose ClickHouse if…
- You want the brand AI engines rank higher (16.5 vs 9.9)
- AI answers describe it more positively (58% vs 37% positive)
- You need HIPAA or PCI coverage
- You prefer a larger, established vendor (501–1,000 employees)
Choose DuckDB if…
- Open-source, in-process analytical database
- Free and excellent for local analytics on small datasets
- Lightweight, local-first data engineering without massive cloud infrastructure
- Free tier and simple, predictable low-cost plans via MotherDuck
AI visibility side by side
Latest weekly run · Nov 3
| Metric | ClickHouse | DuckDB |
|---|---|---|
| Visibility score | 16.5% | 9.9% |
| Change vs last week | New | New |
| Rank in Data Warehouse | #8 | #11 |
| Share of voice | 5.4% | 3% |
| Mentions this run | 30 | 17 |
| Positive in AI answers | 58% | 37% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
ClickHouse 0pp · DuckDB 0pp over 0 weekly runs.
Engine by engine
ClickHouse leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
ClickHouseDuckDB
Head to head in AI answers
13 engine answers name both brands
9ClickHouse ranked higher
4DuckDB ranked higher
| Prompt | Engine | ClickHouse | DuckDB |
|---|---|---|---|
| Top data warehouse options for B2B SaaS companies | ChatGPT | #5 | #9 |
| Top data warehouse options for B2B SaaS companies | Perplexity | #8 | #10 |
| Best data warehouse for startups | ChatGPT | #4 | #8 |
| Best data warehouse for startups | AI Mode | #5 | #8 |
| Best data warehouse for startups | Perplexity | #8 | #3 |
| Alternatives to the most popular data warehouse | ChatGPT | #8 | #9 |
| Alternatives to the most popular data warehouse | Perplexity | #7 | #8 |
| Most affordable data warehouse that is still reliable | ChatGPT | #2 | #6 |
| Most affordable data warehouse that is still reliable | AI Mode | #2 | #4 |
| Is there a free data warehouse for small teams? | ChatGPT | #4 | #3 |
| Is there a free data warehouse for small teams? | AI Mode | #5 | #3 |
| Is there a free data warehouse for small teams? | Perplexity | #5 | #2 |
Features, pricing & fit
| Dimension | ClickHouse | DuckDB |
|---|---|---|
| Pricing model | Usage-based | — |
| Entry price | $0.218 / mo | — |
| Free plan | No · 30-day trial | — |
| Deployment | ClickHouse Cloud on AWS, GCP and Azure, self-managed open-source installs, and Bring Your Own Cloud within the customer's own VPC. | Embedded in-process, or client-server via Quack, from edge devices to servers with hundreds of cores |
| Integrations | 100+ | — |
| Compliance | HIPAA, PCI | — |
| Support | Expert support with 1 business day response time on Basic, Expert support with 1 hour response time on Scale, Enterprise support with 30 min response time for Severity 1 issues, Named Lead Support Engineer on Enterprise | Support page on duckdb.org, GitHub issues |
| Founded | 2009 | 2018 |
| Headquarters | Palo Alto, CA, United States | Amsterdam, Netherlands |
| Employees | 501–1,000 | 11–50 |
| Funding | Series D, led by Dragoneer | Spinout from CWI |
| Best for | Developers and data teams that need real-time queries on large datasets at an affordable cost, including teams adding a speed layer on top of an existing data warehouse or OLTP database. | Developers and data engineers who want a fast analytical SQL engine embedded in an application or run on a laptop, edge device or server |
Plans side by side
ClickHouse
Basic$0.218per compute unit / hr
Scale$0.299per compute unit / hr
Enterprise$0.39per compute unit / hr
DuckDB
Pricing not available.
Pros and cons
Themes from the AI answers that mention each brand
ClickHouse
- fast real-time analytics
- high-concurrency analytics performance
- strong for observability and log analytics
- $300 credits and 30-day trial
- best raw performance-to-cost ratio
- self-hosting requires scaling and maintenance work
- efficient operation at very large scale needs specialized expertise
- specialist option rather than broad enterprise warehouse replacement
DuckDB
- Open-source, in-process analytical database
- Free and excellent for local analytics on small datasets
- Lightweight, local-first data engineering without massive cloud infrastructure
- Free tier and simple, predictable low-cost plans via MotherDuck
- Not suited to shared, high-concurrency application databases
- Less suited to large enterprise workloads
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “ClickHouse vs DuckDB”, https://slateindex.ai/compare/clickhouse-vs-duckdb, data of Nov 3, 2026. Licence: CC BY 4.0.