Node can call the LLM already. Why add FastAPI?
Practice this question- Only for a concrete Python library, local model, numerical workload, or scaling boundary.
- Otherwise another service adds authentication, deployments, networking, contracts, and failures without meaningful benefit.
Adapted from 13_AI.MD · “29.19 FastAPI”. Code examples are study fragments. Difficulty and core labels are editorial estimates; version-specific behavior should be checked against your project.