Make prediction a contract.
FastAPI gives a model a clear boundary: validated input in, predictable output out.
POST /predict
{ "features": [0.42, 0.18, 0.91] }
200 OK
{ "label": "approved", "score": 0.87 }Tools are only the surface. The craft is the layer between a trained model and a dependable product.
Use these as a compact map for completing the work.
FastAPI gives a model a clear boundary: validated input in, predictable output out.
POST /predict
{ "features": [0.42, 0.18, 0.91] }
200 OK
{ "label": "approved", "score": 0.87 }Online predictions answer now. Batch predictions process a known set later. Latency, cost, and freshness make the decision.
Version datasets, code, weights, and evaluation results so a good decision can be reproduced.
Select the requirement that matters most.
Record a model identity you can reproduce. It persists after refresh.
Online, Batch and Hybrid are three source-defined serving recommendations. Each button selects a fixed paragraph and marks the serving foundation as explored. Bars compare three choices with zero actual deployed prediction services at one hundred fifty pixels per count. The page explains latency and throughput framing, but it does not call a model, send a prediction request, install FastAPI, schedule a batch or measure speed or cost. The displayed request and response are examples, not an executed API. Enter a model name and version. Add trims both and accepts the pair only when neither is empty, producing one displayed ledger row. Bars compare two required fields with one row at one hundred fifty pixels per count. The source permits duplicates and saves just those strings; it does not store code, datasets, weights or evaluation artifacts. A row is a local identity note, not proof a model build can be reproduced or that those assets exist. Viewing the inference card, choosing a serving mode and adding a version can record all three explored foundation keys. Bars compare three keys with two stored collections, seen and entries, at one hundred pixels per item. Reload restores those collections, but it does not restore the chosen serving recommendation. Download combines the current recommendation with recorded versions; the source writes literal backslash-n separators, not actual Markdown line breaks. These are local notes and interaction tracking, not proof of learning, model operation or a backend request.