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LLM Inference TCO Calculator
Build a SaaS calculator for AI teams to compare owned GPUs, colocation, and rented infrastructure using transparent total-cost modeling. The product would turn rough forum math into finance-grade scenario planning with per-user, per-request, and breakeven outputs.
Why this matters
You are trying to decide whether to buy GPUs, rent them, or place owned hardware in a third-party facility, but every estimate breaks down once real operating costs enter the picture. Purchase price is only the beginning; then you have to reason about power draw, cooling overhead, floor space, support labor, and utilization. Existing writeups give simplified examples, but they do not help when your workload or deployment assumptions differ. You end up stitching together hourly cloud rates, electricity numbers, and rough infrastructure guesses in a spreadsheet that nobody fully trusts. That uncertainty can lead to overspending, underprovisioning, or delaying a launch because the team cannot align on the economics.
- · Built for Startup founders, ML engineers, and finance-minded infrastructure leads planning production LLM deployments with monthly GPU spend or capex decisions..
- · Most likely monetization: SaaS subscription.
The Pain · Narrative
You are trying to decide whether to buy GPUs, rent them, or place owned hardware in a third-party facility, but every estimate breaks down once real operating costs enter the picture. Purchase price is only the beginning; then you have to reason about power draw, cooling overhead, floor space, support labor, and utilization. Existing writeups give simplified examples, but they do not help when your workload or deployment assumptions differ. You end up stitching together hourly cloud rates, electricity numbers, and rough infrastructure guesses in a spreadsheet that nobody fully trusts. That uncertainty can lead to overspending, underprovisioning, or delaying a launch because the team cannot align on the economics.
Score Breakdown
Market Signal
Go-to-Market
Technical founders and infrastructure leads at AI startups evaluating their first serious self-hosted or hybrid inference deployment.
~20K-50K globally in the near-term reachable market
SEO long-tail
$99/month
25 teams create and save at least 2 cost scenarios each, with 10 converting to paid plans within 30 days
MVP Scope · 1–2 weeks
- Define the core cost model for owned, rented, and colocated GPUs with transparent formulas
- Build a simple web form for GPU price, hourly rent, utilization, user count, and electricity inputs
- Add outputs for monthly cost, per-user cost, and breakeven point
- Create assumption presets for a few common GPU classes and electricity ranges
- Ship a shareable read-only scenario link for internal team review
- Add overhead inputs for cooling multiplier, staffing, security, and rack or facility costs
- Implement sensitivity charts for utilization and concurrency changes
- Create saved scenarios with side-by-side comparisons
- Add CSV export and a finance-friendly summary view
- Launch a landing page with example scenarios and collect waitlist or paid pilots
Differentiation
Why This Might Fail
Self-rebuttal — the most important trust signal
- 1The problem may be important but episodic, causing users to subscribe briefly and then churn after a single planning decision.
- 2If the assumptions are seen as too generic or inaccurate, sophisticated buyers will revert to internal spreadsheets and benchmarking.
- 3Large cloud providers or observability platforms could add similar calculators for free and capture the top of funnel.
Evidence Summary
How AI synthesized this insight — no verbatim quotes
Several commenters focused on missing operational costs beyond the GPU itself, repeatedly naming power, cooling, maintenance, rent, space, and staffing. Multiple participants also tried to compute electricity or per-user cost manually, showing that the need is active and quantitative rather than theoretical. The discussion indicates a strong desire for a trusted TCO model that combines capex and opex in one place.
Action Plan
Validate this opportunity before writing code
Recommended Next Step
Build
Strong demand signals detected. Real pain, real willingness to pay — start building an MVP.
Landing Page Copy Kit
Ready-to-paste copy based on real Reddit community language — no editing required
Headline
LLM Inference TCO Calculator
Sub-headline
Build a SaaS calculator for AI teams to compare owned GPUs, colocation, and rented infrastructure using transparent total-cost modeling. The product would turn rough forum math into finance-grade scenario planning with per-user, per-request, and breakeven outputs.
Who It's For
For Startup founders, ML engineers, and finance-minded infrastructure leads planning production LLM deployments with monthly GPU spend or capex decisions.
Feature List
✓ owned vs rented vs colocated GPU cost comparison ✓ editable assumptions for power, cooling, staffing, and facility overhead ✓ breakeven analysis by utilization, users, and model workload
Where to Validate
Share your landing page in r/HN · front_page — that's exactly where these pain points were discovered.
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