From 10a32898c03462132bea8b79c33f29c8ba55df6e Mon Sep 17 00:00:00 2001
From: root <root@v2202607377162478911.nicesrv.de>
Date: Wed, 15 Jul 2026 18:34:06 -0400
Subject: [PATCH] Add cost analysis and pricing model

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 COST_ANALYSIS.md | 55 ++++++++++++++++++++++++++++++++++++++++++++++++
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 model            |  3 +++
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 create mode 100644 COST_ANALYSIS.md
 create mode 100644 api_base
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+# Gift-a-Roast — Cost Analysis & Pricing
+
+## Per-Call Cost Breakdown (2-minute roast call, outbound)
+
+| Layer | Service | Unit Cost | Call Usage | Subtotal |
+|---|---|---|---|---|
+| **Twilio call** | Programmable Voice (outbound) | $0.014/min | 2 min | **$0.028** |
+| **Twilio Studio** | Flow execution | $0.0025/flat | 1x | **$0.003** |
+| **STT** | OpenAI Whisper | $0.006/min | 30s speech | **$0.003** |
+| **LLM** | deepseek-v4-pro (admin-ai) | ~$2-4/1M tokens | 500 tokens | **$0.002** |
+| **TTS (voice)** | Azure Neural | $12/1M chars (~1,500 chars/resp) | 30s speech | **$0.005** |
+| **TTS (voice)** | Resemble.ai (alt) | $0.0005/sec | 30s | $0.015 |
+| **Total (voice only)** | | | | **~$0.04** |
+
+## Song Mode Add-on
+
+| Layer | Service | Unit Cost | Usage | Subtotal |
+|---|---|---|---|---|
+| Song generation | Suno API (3rd party) | $0.06/request | 1 song | **$0.06** |
+| **Total (with song)** | | | | **~$0.10** |
+
+## Inbound Call Scenario (customer calls the roast line)
+
+Same AI costs but Twilio inbound rate: $0.0085/min → $0.017 per call → **~$0.03 total (voice only)**
+
+## Monthly Fixed Costs
+
+| Item | Cost |
+|---|---|
+| Twilio local number | $1.15/mo |
+| Twilio toll-free number (optional) | ~$2.00/mo |
+| Server (Core, shares existing) | $0 (marginal) |
+| **Total fixed** | **~$3/month** |
+
+---
+
+## Pricing Recommendation
+
+Standard SaaS margins: 3-5x cost. This is a novelty product with viral potential — higher margins justified.
+
+| Tier | Cost | Price | Margin |
+|---|---|---|---|
+| **Basic Roast** | $0.04 | **$2.99** | 74x |
+| **Roast + Song** | $0.10 | **$4.99** | 50x |
+| **Premium (custom dialect + song)** | $0.10 | **$6.99** | 70x |
+| **Gift-a-Roast (send to friend)** | $0.04 | **$3.99** | 100x |
+
+At these prices, even low volume (50 calls/mo) covers costs + Stripe fees. Viral adoption at 1,000+ calls/mo = $3,000-7,000 revenue vs $40-100 in API costs.
+
+## Notes
+
+- **Resemble.ai vs Azure TTS:** Azure is cheaper ($0.005/call) but Resemble's voice agents ($0.001/sec) might have better regional accent quality. Test both.
+- **Suno API:** No official public API confirmed. The $0.06/request is from third-party reverse-engineered APIs. Risky for production. LLM lyrics + TTS singing is the fallback.
+- **Stripe fees:** ~2.9% + $0.30 per transaction. At $2.99, that's ~$0.39/call in fees.
+- **Legal:** Needs Terms of Service with opt-out mechanism. Anti-harassment safeguards (can't call the same number more than once without consent).
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+--
+(1 row)
+