LlamaIndex vs Weaviate
Compare these two SDK tools side-by-side to find the best fit for your project.

LlamaIndex
SDK
8/10
Data framework for building retrieval-heavy AI systems with connectors, indexing, reranking, agent workflows, and enterprise search patterns.
Visit SiteVS

Weaviate
Database
7.5/10
AI-first vector database for search, RAG, and agents with hybrid retrieval, model-provider integrations, automatic embeddings, and deploy-anywhere enterprise options.
Visit SiteQuick Verdict
Choose LlamaIndex if:
- Easy Setup
- Developer API
- Active Community
Choose Weaviate if:
- Similarity Search
- RAG Pipeline Support
- Metadata Filtering
Feature Comparison
| Feature | LlamaIndex | Weaviate |
|---|---|---|
| Category | SDK | Database |
| Pricing Model | Usage-Based | Freemium |
| Starting Price | $500/mo | $20/mo |
| Rating | 8/10 | 7.5/10 |
| Complexity | Intermediate | Intermediate |
| AI Models | Llama | Gemini |
| Integrations | OpenAI, LangChain | GitHub, Google Cloud, Azure, Docker, Kubernetes |
| Best For | Developers building RAG applications with sophisticated data ingestion, indexing, and query strategies. | AI teams building multi-modal search applications with an open-source vector database and built-in vectorization. |
LlamaIndex
Pros
- Easy Setup
- Developer API
- Active Community
- Regular Updates
Considerations
- May require setup time
- Check pricing for your scale
Weaviate
Pros
- Similarity Search
- RAG Pipeline Support
- Metadata Filtering
- Scalable Indexing
Considerations
- May require setup time
- Check pricing for your scale
