Self-hosting Scout with Milvus wins on cost and privacy; API-access wins on simplicity—choose API if your team lacks DevOps capacity, self-host if you prioritize economics.
API access (via Meta or third-party providers) is simple: send query, get response, pay per token. No infrastructure overhead, predictable monthly bills. But: costs scale with usage, data goes to external servers, zero customization. Self-hosting is harder operationally but offers lower marginal cost (pay once for infra), data sovereignty, and fine-tuning freedom. With Milvus, self-hosting creates a fully internal system: queries never leave your network, embeddings are private, and Scout becomes a “free” asset once deployed.
For most enterprises evaluating April 2026, self-hosting wins the ROI analysis after ~10M tokens/month. Smaller teams should prefer API until traffic justifies infrastructure. Both approaches work with Milvus equally well: the difference is operational burden vs. cost optimization.
Related Resources
- Milvus Quickstart — self-hosted deployment
- Agentic RAG with Milvus and LangGraph — production infrastructure
- Enhance RAG Performance — cost optimization strategies