Google Vertex AI Vector Search vs Weaviate
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Weaviate is the stronger AI pick in Vector Databases: it has a visibility score of 45.2 versus 1.5 for Google Vertex AI Vector Search, and ranks ahead in 50% of the answers that name both.
Choose Google Vertex AI Vector Search if…
- You prefer a larger, established vendor (5,000+ employees)
Choose Weaviate if…
- You want the brand AI engines rank higher (45.2 vs 1.5)
- You need SOC 2 Type II or HIPAA (Enterprise Cloud on AWS) coverage
- Strong native hybrid search
- Open-source and modular AI-native design
AI visibility side by side
Latest weekly run · Nov 2
| Metric | Google Vertex AI Vector Search | Weaviate |
|---|---|---|
| Visibility score | 1.5% | 45.2% |
| Change vs last week | New | New |
| Rank in Vector Databases | #21 | #4 |
| Share of voice | 0.5% | 11.7% |
| Mentions this run | 3 | 56 |
| Positive in AI answers | — | 59% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Google Vertex AI Vector Search 0pp · Weaviate 0pp over 0 weekly runs.
Engine by engine
Weaviate leads on 3 of 3 engines
Head to head in AI answers
2 engine answers name both brands
| Prompt | Engine | Google Vertex AI Vector Search | Weaviate |
|---|---|---|---|
| Best vector database for enterprise | ChatGPT | #8 | #3 |
| Which Vector Databases tools offer annual discounts? | ChatGPT | #4 | #8 |
Features, pricing & fit
| Dimension | Google Vertex AI Vector Search | Weaviate |
|---|---|---|
| Pricing model | — | Usage-based |
| Entry price | — | Free; paid from $45 / mo |
| Free plan | — | Yes |
| Deployment | Fully managed service on Google Cloud | Serverless, Enterprise Cloud, or Bring Your Own Cloud |
| Compliance | — | SOC 2 Type II, HIPAA (Enterprise Cloud on AWS) |
| Support | — | Email support on all plans, Phone and Slack support on Premium and Dedicated plans, Technical Account Team add-on on Premium and Dedicated plans |
| Founded | — | 2019 |
| Headquarters | — | Amsterdam, Netherlands |
| Employees | 5,000+ | 51–200 |
| Funding | — | Strategic investment (Ricoh corporate venture fund) |
| Best for | — | Development teams and enterprises building search, RAG and agent applications who want an open-source, production-ready vector database. |
Plans side by side
Google Vertex AI Vector Search
Pricing not available.
Weaviate
Pros and cons
Themes from the AI answers that mention each brand
Google Vertex AI Vector Search
Profile in progress.
Weaviate
- Strong native hybrid search
- Open-source and modular AI-native design
- Free tier or trial to start
- Flexible indexing and configurable managed service
- Published pricing with an annual-commitment option
- Monthly minimum charges
- Higher tiers priced steeply above entry plan
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Google Vertex AI Vector Search vs Weaviate”, https://slateindex.ai/compare/google-vertex-ai-vector-search-vs-weaviate, data of Nov 2, 2026. Licence: CC BY 4.0.