The cleanest AI products treat interface, service, and model/retrieval layers as distinct responsibilities connected by contracts.
Frontend responsibility
The UI owns intent capture, state, feedback, and user control. It should not need to understand model internals.
Backend responsibility
The backend validates input, orchestrates services, applies policy, and exposes stable results.
AI responsibility
Model and retrieval components produce the capability behind the API while remaining replaceable implementations.
Boundary benefit
Decoupling improves testability, deployability, and the ability to change one layer without rewriting unrelated layers.
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AI Developer / ML Engineer building end-to-end AI systems from research to production, with a focus on multimodal AI, LLM applications, retrieval, MLOps, and systems engineering. He is based in Rawalpindi, Pakistan and is the founder of GROVE SYSTEMS.