Side by side
ArrowSpace vs Upstash Vector
Both stand on vector databases. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Choose ArrowSpace if you want a free, self-hosted product with the listed graph and spectral index types. Its Rust and Python SDKs are useful when those are your preferred development languages. Look elsewhere if you need a hosted deployment instead.
Visit ArrowSpace
Choose Upstash Vector if you need a serverless database for vector search with metadata filtering, hybrid indexes, and developer integrations. The free tier has daily query/update and data limits; teams needing higher capacity, more dimensions, enterprise security, or dedicated support can consider the other plans, with Enterprise pricing available by contacting Upstash.
Visit Upstash VectorThe facts
| ArrowSpace | Upstash Vector | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Not published | API, Web |
| Lowest paid plan | Not published | See the plans |
| Plans published | None | 4 |
| Maker | Not published | Not published |
| Website | tuned-org-uk.github.io | upstash.com |
| On vector databases | #22 of 27 | #18 of 27 |
ArrowSpace: what it does well
- Free pricing model
- Self-hosted deployment
- Four listed index types
- Rust SDK available
- Python SDK available
What to know first
- Requires self-hosted deployment
- No hosted deployment listed
Upstash Vector: what it does well
- Offers a REST API and SDKs for Python, TypeScript, Go, and PHP.
- Supports Euclidean distance, cosine similarity, and dot product.
- Metadata filters can narrow query results.
- Hybrid indexes combine semantic and exact-token search.
- Integrations cover Vercel AI SDK, LangChain, and LlamaIndex.
What to know first
- The Free plan allows 10K daily queries or updates.
- The Free plan is limited to 1,536 maximum dimensions.
- Pay as You Go storage costs $0.25/GB.
- Region availability varies by plan.
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