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Moonborn — Developers

ROI calculation

A back-of-envelope model for evaluating Moonborn against in-house build, prompt engineering, or a generic chat platform.

ROI in this category is messy — the unit isn't a click or a click- through. Use this as a sanity model, not a forecast.

Three baselines

BaselineWhere it dominates
Generic chat (no persona)Cheap, but voice drift accumulates; brand QA spend grows with traffic
In-house buildControl + secrecy; expensive to maintain, especially audit + drift signals
MoonbornLower TCO if you need voice consistency at scale; trade is vendor dependency

Costs to model

  • Generation: ~$0.08 per persona × 30-90s wall time.
  • Per chat reply: $0.005-$0.02 depending on provider model.
  • Drift recovery (auto_recover enabled): ~5% of replies cost double.
  • Voice fingerprint (one-time): $0.03 per persona.
  • Provocation suite (one-time per refine): ~$0.10.
  • Subscription: see Pricing for tier costs.

Benefits to estimate

  • CX hours saved: replies that pass moderation + drift checks without human review. Pro: 100-1000/month; Team: 10k/month; Enterprise: contract.
  • Brand QA hours saved: the variant set + distinctiveness gates replace ad-hoc brand-voice review. Estimate hours spent reviewing campaign copy today; halve it conservatively.
  • Time-to-launch reduction: from "8 weeks to write a persona + validate" to "an afternoon plus audit." Mostly relevant for marketing teams launching new product lines.

A worked example

A SaaS company with 50k chat sessions/month at $0.01 average:

  • Reply cost: 50k × $0.01 = $500/month
  • Drift recovery (5%): 50k × 0.05 × $0.01 = $25/month
  • Tier (Team): contracted
  • Total: ~$525/month direct, plus tier

Vs. an in-house build with one engineer at $200k/year, voice fingerprint and drift detection scoped at ~3-6 months. The opportunity-cost case is straightforward; the harder argument is the brand-voice consistency case — that's the half customers underestimate.

What this guide doesn't cover

  • Your own pricing math (per-user-seat economics, per-customer cost-to-serve).
  • Brand value uplift (qualitative).
  • Compliance risk reduction (HIPAA / GDPR exposure if voice goes off-brand into clinical territory).

These are real, but they belong in your spreadsheet, not ours.

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