The canonical AI system-design question. The signal is covering both the model lifecycle and the serving stack under real scale, without rambling. Most candidates design only half and lose the points.
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Design ChatGPT end to end: from training to serving a conversational assistant at scale.
The canonical AI system-design question. The signal is covering both the model lifecycle and the serving stack under real scale, without rambling. Most candidates design only half and lose the points.
Updated Aug 2026 · Grounded in real Applied AI Engineer interview loops and written to a senior-engineer editorial bar.
UP NEXT ON YOUR JOURNEY
Next in this trackDesign a deep research agent that answers complex questions by searching and synthesizing many sources.Next in this trackDesign memory for a personal AI assistant that remembers users across sessions.Next in this trackDesign a multi-agent customer support system with escalation to humans.
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