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When do you use batch, real-time (online), streaming, or async inference?

Not every prediction needs a low-latency endpoint, and defaulting to one burns money. The signal is matching the serving pattern to the latency and freshness requirement. Here is the decision and when you'd reverse it.

Updated Aug 2026 · Grounded in real Applied AI Engineer interview loops and written to a senior-engineer editorial bar.

Not every prediction needs a low-latency endpoint, and defaulting to one burns money. The signal is matching the serving pattern to the latency and freshness requirement. Here is the decision and when you'd reverse it.

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