The one you start with.
Chroma is the vector database most people meet first — it runs in a few lines of Python with no server to configure\, then scales to a managed cloud when prototypes become products.
That gentle on-ramp is its real advantage: you are querying embeddings within minutes rather than provisioning infrastructure. Cloud pricing is transparently usage-based — $2.50 per GiB written\, $0.33 per GiB stored monthly — and being open source\, data export is never a hostage situation.
Quick Information
Platform
Web
Pricing
Free open source + usage-based cloud
API
Available
Category
Analytics
Pros and Cons
Pros
- Easiest vector database to start with
- Open source and free to self-host
- Fully transparent usage pricing
- Free credits on the Starter plan
- Data export is straightforward
Cons
- Self-hosting scales less easily than rivals
- Team plan jumps to $250/month
- Service pauses if usage limits are exceeded
- Fewer enterprise features