XPndAI builds custom voice AI agents with full source code ownership — no per-minute billing, no SaaS lock-in, no platform restrictions. Or we build on top of Vapi/Retell AI if rapid deployment matters more than ownership. Fixed price from $10,000 / ₹8L.
The right choice depends on your call volume, customisation needs, and whether you want to own your infrastructure.
| Factor | Vapi (SaaS) | Retell AI (SaaS) | XPndAI Custom Build |
|---|---|---|---|
| Pricing model | $0.05–$0.15/min + LLM | $0.07–$0.12/min + LLM | Fixed price upfront. No per-min fees. |
| 10,000 min/month cost | $500–$1,500/month forever | $700–$1,200/month forever | $200–$800/month (infra only) |
| Source code ownership | ✗ No | ✗ No | ✓ Full source code |
| Private cloud / on-premise | ✗ No | ✗ No | ✓ Your AWS / GCP / on-prem |
| Custom business logic depth | ⚠ Limited via webhooks | ⚠ Limited via webhooks | ✓ Unlimited — your code |
| CRM / ERP deep integration | ⚠ Basic API calls | ⚠ Basic API calls | ✓ Native integration built-in |
| Hindi / multilingual support | ⚠ Limited | ⚠ Limited | ✓ Hindi, Arabic, Spanish, more |
| Time to first call | ✓ Same day | ✓ Same day | 4–8 weeks |
| Break-even vs SaaS | — | — | 8–18 months (then cheaper forever) |
Vapi and Retell AI are excellent products for rapid prototyping. The comparison above is for production systems at scale. XPndAI builds on Vapi/Retell for clients who need speed; builds custom for clients who need ownership or scale.
Inbound call handling for HVAC, medical clinics, property management, legal offices, and restaurants. 24/7. No missed calls.
AI calling agent for NBFC loan recovery, EMI reminders, D2C winback, and insurance renewal. FDCPA-aware.
Appointment booking, clinical documentation, post-discharge follow-up. HIPAA-compliant architecture.
Voice AI in Hindi, Hinglish, Arabic, Spanish. Custom ASR fine-tuned on Indian accents and domain vocabulary.
IT helpdesk voice agent, HR query bot, procurement voice approvals. Private deployment on your infrastructure.
Lead qualification, site visit scheduling, post-visit follow-up for real estate developers and brokers.
For businesses that need custom voice AI — not a SaaS subscription — XPndAI builds fully custom voice AI agents with complete source code ownership. Unlike Vapi, a custom-built system has no per-minute costs, can be hosted privately, and can be extended without platform restrictions. XPndAI also builds on top of Vapi if rapid deployment matters more than ownership.
Vapi: ~$0.05–0.15/min. At 10,000 min/month = $500–$1,500/month ongoing, forever. Custom build: $10,000–$50,000 upfront, then $200–$800/month infrastructure. Break-even is typically 8–18 months. Beyond break-even, custom is significantly cheaper. For businesses under 3,000 min/month, Vapi is usually more economical.
Yes. XPndAI builds on Vapi, Retell AI, or from scratch. For rapid deployment: Vapi/Retell. For full ownership, Hindi support, or private cloud: custom build using Whisper + GPT-4o/Claude + ElevenLabs/Azure TTS.
$10,000–$20,000 / ₹8L–₹15L for a focused voice AI agent (inbound receptionist or outbound caller). $20,000–$60,000 / ₹15L–₹50L for a full voice AI platform with CRM integration, analytics, and multi-language. Fixed price. Full source code. No per-minute fees after delivery.
Tell us your call volume, use case, and budget — we'll tell you honestly whether Vapi, Retell, or a custom build makes more sense for you.