Internal Founders Model
Infrastructure COGS & Pricing Designer
Estimate direct monthly Cost of Goods Sold (COGS) across Vapi, OpenAI, and Supabase. Model retail client pricing strategies to maximize software profit margins.
1. Call Volumes & LLM Config
1,000 calls
102,5005,0007,50010,000
30 minutes
1 min15 min30 min45 min60 min
2. Supabase Infrastructure Specs
✓ $10/month compute credit applied to dedicated compute resources.
Auto-Estimate Storage & Bandwidth
Scale database specs automatically with call volume
Estimated Auth MAUs
1,100 users
File Storage (Recs)
14.6 GB
DB Row Storage
9.77 GB
Bandwidth Egress
21.9 GB
3. Voice Platform & Security
Retail Modeler
Founder Retail Pricing
$8.00
$1.00$10.00$20.00$30.00
Expected Revenue
$8,000
1,000 calls @ $8.00Gross Margin
69.5%
Healthy Margin (50% - 75%)Monthly Gross Profit:$5,556
Total Infra COGS / Month:$2,443.72
Infra COGS / Interview:$2.44
Break-even Vol:6 interviews / mo
Pricing Strategy: Your pricing structure is well-optimized. At $8.00 per interview, you achieve a 69% gross margin, which fits premium enterprise B2B benchmarks. This allows you to launch bundled monthly subscriptions (e.g. $299/mo for 40 interviews).
Total Infrastructure COGS
$2,443.72Cost of Goods Sold / month
COGS Infrastructure Allocation100%
Voice AI (Vapi + Models + Audio):$2413.50 (99%)
Supabase (Plan + Compute + Storage):$30.22 (1%)
Founders Margin Scenario Matrix
Analyze margins and total variable infra COGS across standard interview durations and call volumes (excluding enterprise fixed add-ons).
| Duration Scenario | Direct COGS / Call | Margin @ $8.00 | 500 Calls / Mo | 1,000 Calls / Mo | 5,000 Calls / Mo |
|---|---|---|---|---|---|
| 5 Minute Interview | $0.40 | 95% | $228 | $430 | $2,041 |
| 10 Minute Interview | $0.81 | 90% | $430 | $833 | $4,055 |
| 30 Minute Interview | $2.42 | 70% | $1,235 | $2,444 | $12,110 |
| 40 Minute Interview | $3.22 | 60% | $1,638 | $3,249 | $16,137 |