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Design serving for a coding assistant: 32K-token prompts, 200-token completions, p99 TTFT under one second. What do you build?

A cold 32K prefill on a 70B model barely fits a second of compute on eight H100s, before any queueing. The design that passes makes almost every request warm, then sizes two pools from what remains.

Updated Oct 2026 · Worked answers on inference mechanisms, with calculations, implementation details, and follow-up questions.

A cold 32K prefill on a 70B model barely fits a second of compute on eight H100s, before any queueing. The design that passes makes almost every request warm, then sizes two pools from what remains.

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Next in this trackDesign real-time voice inference with 300 ms from the end of the user's turn to the first audio. Where does every millisecond go?Next in this trackPlan capacity for a 70B fleet that mixes H100 and B200 nodes under one latency SLO. How do you count capacity and route across them?Next in this trackDesign batch inference over 1 billion documents: embed each one and run a 70B model over each. How many GPUs, how long, what cost?

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