AI Business Case Template for LLM Features

A business case fails when it’s either too technical or too vague. This template keeps it simple: inputs → scenarios → decision.

Calculate cost scenarios

Template structure

  • Use case summary (what the feature does, who uses it)
  • Usage assumptions (DAU, requests/user/day, response length bands)
  • Cost scenarios (base / high / guardrail)
  • Risks & mitigations (peaks, adoption, output length)
  • Decision (budget, model choice, rollout plan)

Frequently Asked Questions

What’s the minimum needed for an AI business case?
Usage volume, Unit Costs (Model), and Total Cost of Ownership estimates.
How do I present uncertainty without losing credibility?
Use ranges and scenarios. Admitting uncertainty is more credible than a precise wrong number.
What assumptions should Finance challenge first?
Adoption rates (DAU) and the necessity of the most expensive model.

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