Startup Business Models
Systematic workflow for choosing revenue models, pricing, and unit economics.
Quick Start (Inputs)
Ask for the smallest set of inputs that makes the decision meaningful:
- Business type: SaaS, usage-based/API, marketplace, services, hardware + service
- ICP/segment(s): SMB / mid-market / enterprise (and ACV/ARPA bands)
- Current pricing and packaging: value metric, tiers, limits, discount policy, billing cadence
- Unit economics drivers: fully-loaded CAC, gross margin/COGS (include LLM/infra/third-party), churn/retention, expansion (NRR)
- Constraints: sales motion (PLG vs sales-led), implementation constraints (billing metering, proration), gross margin floor, payback target
If numbers are missing, proceed with ranges + explicit assumptions and highlight what to measure next.
Workflow
- Classify the model
- Subscription, usage-based, freemium, marketplace take-rate, transaction fee, ads, outcome-based, credit-based, hybrid.
- Build a segment-level unit economics snapshot
- Use
references/unit-economics-calculator.mdfor formulas, benchmarks, and common pitfalls. - Prefer cohort/segment views over blended averages.
- Evaluate model fit and risks
- Align price metric with value delivered and cost incurred (especially usage + AI compute).
- Identify failure modes: margin compression, adverse selection, channel conflict, support cost explosions, metering/overage friction.
- Propose pricing + packaging changes
- Use
references/pricing-research-guide.mdfor WTP methods and pricing interview scripts. - Use
assets/pricing-tier-design.mdto draft tiers, limits, upgrade triggers, and enforcement rules.
- Define measurement and roll-out
- Define success metric + guardrails, evaluation design, and explicit lag windows (conversion now, retention later).
- Deliver a decision-ready output
- Recommendation, rationale, assumptions, scenarios (base/best/worst), and next experiments.
2026 Heuristics (Context-Dependent)
- Prioritize payback and gross margin over a single ratio; LTV:CAC is easiest to game.
- Typical SaaS targets (directional, by segment/stage): LTV:CAC 3-5x, payback 6-12 months (PLG) or 12-18 months (sales-led early), NRR >100% (mid-market/enterprise) and gross margin >70% (software-only).
- For usage-based / AI products: model contribution margin per unit (token/job/workflow) and set pricing guardrails (rate limits, minimums, commit tiers, credit expiries).
Related Skills (Routing)
- startup-idea-validation
- startup-competitive-analysis
- startup-fundraising
- startup-go-to-market
- startup-finance-ops
Pricing Change Measurement & Experiment Design
Use this when you are changing pricing, packaging, value metric, limits, discounts, or billing cadence.
1) Define success and guardrails (before launch)
| Type | Examples |
|---|---|
| Primary success metric | Net revenue retention (NRR), ARPA/ARPU, gross margin %, payback period, upgrade rate, expansion MRR |
| Guardrails | New logo conversion, activation rate, refund rate, support load, churn (logo + revenue), sales cycle length |
2) Pick an evaluation design
| Design | Best when | How to read results |
|---|---|---|
| A/B (randomized) | Self-serve / PLG flows | Compare conversion, ARPA, refunds, and downstream retention by assignment |
| Holdout/control cohort | Pricing is hard to randomize | Compare treated vs. holdout cohorts matched on segment, channel, and start month |
| Step rollout (time-based) | Enterprise contracts, invoicing cycles | Compare pre/post with a parallel cohort (not exposed yet) to reduce seasonality bias |
| Geo/account rollout | Regions/segments are separable | Compare regions/segments; watch for channel mix shifts |
3) Use explicit lag windows (avoid premature conclusions)
- Short lag (days to 2 weeks): checkout conversion, activation, sales cycle friction, refund/support spikes.
- Medium lag (4 to 8 weeks): upgrades, expansion MRR, usage growth, discounting behavior, proration effects.
- Long lag (90 to 180+ days, B2B): churn, net revenue retention, renewal outcomes, contraction risk.
4) Report an "all-in" view (not just conversion)
- Revenue quality: net revenue after refunds, discounts, and credits; gross margin impact (including variable compute/COGS).
- Segments: break down by plan, seat band, channel, ACV/ARR band, and customer age (new vs. renewal).
- Decision rule: write a go/no-go threshold (example: "NRR +2pts with no >0.5pt drop in activation and no >10% increase in support load").
SaaS Metrics (Read When Needed)
Use references/saas-metrics-playbook.md for definitions and templates (MRR/ARR, churn, NRR, Quick Ratio, Magic Number, burn multiple, stage focus).
If the user is asking “how long do we survive?” or “how do we run finance day-to-day?”, route to startup-finance-ops.
Resources
| Resource | Purpose |
|---|---|
| unit-economics-calculator.md | LTV, CAC, payback calculations |
| pricing-research-guide.md | WTP research methodology |
| saas-metrics-playbook.md | SaaS-specific metrics deep dive |
| marketplace-economics.md | Marketplace take rates, liquidity, supply/demand dynamics |
| usage-based-pricing.md | Usage-based and AI/credit pricing, metering, billing tools |
| freemium-conversion.md | Free-to-paid conversion benchmarks, paywall design, PQL framework |
| credit-based-ai-pricing.md | Token/credit pricing for AI-native products, cost modeling, margin management |
| enterprise-pricing-patterns.md | Enterprise contract structures, discount governance, expansion pricing |
Templates
| Template | Purpose |
|---|---|
| business-model-canvas.md | Full model design |
| unit-economics-worksheet.md | Calculate and track metrics |
| pricing-tier-design.md | Pricing & packaging worksheet |
Data
| File | Purpose |
|---|---|
| sources.json | Business model resources |
Do / Avoid (Jan 2026)
Do
- Define your value metric (seat/usage/outcome) and validate willingness-to-pay early.
- Include COGS drivers in pricing decisions (especially usage-based).
- Use discount guardrails and renewal logic (avoid ad-hoc deals).
Avoid
- Pricing as an afterthought (“we’ll figure it out later”).
- Margin blindness (shipping usage growth that destroys gross margin).
- Misleading LTV calculations from immature cohorts.
What Good Looks Like
- Packaging: a clear value metric, tier logic, and discount policy (with enforcement rules).
- Unit economics: CAC, gross margin, churn, payback, and retention defined and tied to cohorts.
- Assumptions: one inputs sheet, ranges/sensitivities, and scenarios (base/best/worst).
- Experiments: pricing changes tested with decision rules (not “gut feel” rollouts).
- Risks: margin compression, adverse selection, channel conflict, and support cost modeled.
Optional: AI / Automation
Use only when explicitly requested and policy-compliant.
- Summarize pricing research and competitor snapshots; verify manually before acting.
- Draft pricing page copy; humans verify claims and consistency with contracts.