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hard★ EssentialMistralDatabricksMicrosoft

A customer wants to self-host open weights instead of paying API fees. How do you model the real costs and decide?

The GPU-utilization math that decides this argument, the hidden line items (ops headcount, quality gap, model churn), and the hybrid recommendation that wins both the analysis and the customer.

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

The GPU-utilization math that decides this argument, the hidden line items (ops headcount, quality gap, model churn), and the hybrid recommendation that wins both the analysis and the customer.

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Next in this trackDesign a doc-QA system for a healthcare customer that reliably says 'I don't know' instead of guessing.PremiumNext in this trackWhat's your experience architecting LLM-based applications?PremiumNext in this trackHow did you ensure the LLM didn't answer outside its designed scope?Premium
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