Cost-Benefit Justification Prompt

Asking for a bigger AI budget without a clear case usually gets a slow “let’s revisit next quarter.” This prompt turns scattered usage notes and anecdotal wins into a structured justification leadership can actually act on.

What this prompt does

It takes your current usage, cost, and qualitative wins as input, and produces a structured cost-benefit case: current spend, estimated value delivered, the specific ask, and the risk of not approving it.

The prompt

Help me build a cost-benefit case for an AI budget increase. Here’s my context: [describe current AI spend, what it’s used for, and any usage data you have — e.g. “$200/month across 10 team seats, used daily for drafting and code review, engineering reports it saves roughly 3 hours/week per person”]. My ask: [describe what you want approved — e.g. “increase to $500/month to add API access for an internal tool”]. Structure the response as: (1) current state summary, (2) estimated value delivered based on the data I gave you, being conservative rather than optimistic, (3) the specific ask with cost breakdown, (4) risk of not approving — what happens if we stay at current spend, (5) a one-paragraph executive summary I can lead with.

Variables to fill in

• Current spend and usage — cost, team size, and how it’s actually used day to day.
• Usage data if you have it — time saved, tickets resolved, output produced. Rough estimates are fine.
• The specific ask — an exact dollar amount and what it unlocks, not a vague “more budget.”

Tips for better results

• Be conservative with value estimates — an inflated case is easy to poke holes in and undermines trust for future asks.
• Tie the ask to a specific outcome (a new capability, a bottleneck it removes) rather than just “more usage.”
• Include the cost of doing nothing — a stalled project, a manual process that doesn’t scale — since that’s often the most persuasive part of the case.

Example

Input: “$200/month, 10 seats, daily use for drafting and code review. Engineering estimates 3 hours/week saved per person. Want to add API access for an internal support-ticket triage tool, estimated $300/month additional.” A well-structured output would frame the current $200/month as already returning roughly 30 team-hours/week in time saved, then present the $300/month addition against the cost of continuing manual ticket triage.

FAQ

What if I don’t have hard usage data?

Use directional estimates from the team (“saves roughly X hours a week”) — the prompt is built to work with qualitative input, not just metrics.

Should this replace a formal budget proposal document?

It’s a strong first draft — use it to structure your thinking, then adapt the tone and format to whatever your organization’s approval process expects.

Related

Pair this with the How to Set an AI Budget guide, or estimate current value with the AI Subscription ROI Calculator.