Vespa vs Weaviate: Vector Databases Comparison (2026)
Vespa and Weaviate are both vector databases. Vespa offers flexible pricing based on resource usage, while Weaviate provides an always-free tier with limitations. Vespa
AI Citation Scorecard
How often each is cited by major AI engines when buyers ask vector databases questions. Last 90 days across ChatGPT, Perplexity, Gemini, Claude, and Copilot.
Probes run hourly; each (engine × query) combo retests every ~3 days.
Pricing
Key Features
- ✓Pro-active remediation of issues
- ✓Unlimited support cases
- ✓Automated ops, deployments and upgrades
- ✓Community support only
- ✓No redundancy by default
- ✓Support response time varies by plan
- ✓Backup and disaster recovery
- ✓Single sign-on (SSO)
- ✓Always free — 1 cluster per user
- ✓100,000 objects, 1 GB memory
- ✓1 collection, up to 3 tenants
- ✓Embeddings & Query Agent included
When to choose Vespa
Vespa is suitable when proactive issue remediation, unlimited support cases, automated operations, deployments, and upgrades, backup and disaster recovery, and single sign-on (SSO) are required. It is also a fit when flexible pricing based on resource usage, and various support options are desired.
When to choose Weaviate
Weaviate is suitable when an always-free tier with one cluster per user, 100,000 objects, 1 GB memory, one collection, and up to three tenants is sufficient. It is also a fit when embeddings and a query agent are needed, and an easy entry with no credit card and a flexible pay-as-you-go model are priorities.