What is FP8, and how does it differ from INT8 for LLM training and inference?
FP8 underpins modern H100-class training and serving. What matters is knowing the two FP8 variants, why a floating format beats INT8 on dynamic range, and where scaling still counts.
Updated Sep 2026 · Grounded in real GenAI, LLM, and AI/ML engineering interview loops and written to a senior-engineer editorial bar.
FP8 underpins modern H100-class training and serving. What matters is knowing the two FP8 variants, why a floating format beats INT8 on dynamic range, and where scaling still counts.
Lead with where the obvious approach breaks, because that is the judgment they are screening for — most candidates jump straight to the happy path and lose the room.
Then walk the failure back through the pipeline in order, naming the one metric the customer's exec sponsor actually cares about before you propose the fix.
