What is FP8, and how does it differ from INT8 for LLM training and inference?

FP8 is the format behind modern H100-class training and serving. The signal is knowing the two FP8 variants, why a floating format beats INT8 for dynamic range, and where scaling still matters.

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

FP8 is the format behind modern H100-class training and serving. The signal is knowing the two FP8 variants, why a floating format beats INT8 for dynamic range, and where scaling still matters.

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