Top 7 AI Voice Models for Phone Agents (Retell, Vapi, & More)
HighLevel vs Retell AI
The honest breakdown. Why agencies are switching from Retell AI to HighLevel.
WINNER
HighLevel
The All-In-One AgencyOS
Unlimited Everything
Unlimited sub-accounts, users, and contacts for one flat fee.
White-Labeling
Rebrand the entire platform and resell it to your clients.
Integrated Features
CRM + Email + SMS + Funnels + Booking in one place.
Retell AI
The Specialised Tool
The current gold standard for developer-friendly voice AI. Incredible low latency and great emotion in voices, but requires a separate backend.
Key Limitations
- Often requires expensive integrations (Zapier).
- Per-user or per-contact pricing models.
- No native white-labeling capability.