Best telli alternatives

R

Retell AI

Free

Voice & speech

#1 AI Voice Agent Platform for Automating Phone Calls

$0.07–$0.31/min for AI Voice Agents; $0.002+/msg for AI Chat Agents. $10 free credits at signup, no annual contract. Enterprise plan available with custom pricing.

B

Bland

Free

Voice & speech

Voice AI for regulated industries including healthcare, insurance, financial services, and logistics.

Start plan: $0.14/min, $0 platform fee, 10 concurrent calls, 100 calls/day. Build plan: $0.12/min, $299/month platform fee, 50 concurrent calls, 2,000 calls/day. Enterprise: custom pricing, dedicated infrastructure.

H

HappyRobot

Voice & speech

The platform to build and scale AI agents.

A

AssemblyAI

Free

Voice & speech

Voice AI infrastructure for builders — industry-leading speech-to-text and voice agent APIs

Free tier available · Enterprise pricing on request

V

Vapi

Free

Voice & speech

Voice agents for builders

No-cost entry tier with $5 free credits and $0.05/min Vapi hosting (usage-based, models at cost). Core plan at $29/month. Pro at $999/month minimum (10% of Vapi hosting fee). Premier is custom/contact sales. Add-ons include HIPAA compliance ($2,000/month), additional concurrency ($10/line/month), and additional organizations ($20/org/month).

C

Cartesia

Free

Voice & speech

Architecting AI that learns and interacts like humans — ultra-low latency voice AI

Free plan at $0/mo (20K credits, $1 prepaid agents); Pro at $5/mo (100K credits, $5 prepaid agents); Startup at $49/mo (1.25M credits, $49 prepaid agents); Scale at $299/mo (8M credits, $299 prepaid agents); Enterprise custom. Voice agent calls at $0.06/min plus $0.014/min telephony for Cartesia-provided numbers.

T

Tidio

Free

Chat assistants

AI-powered customer service platform that automates up to 67% of conversations

Usage-based pricing calculated on monthly billable conversations (50, 100, 250, 400, 600, 800, 1,000, 1,500, 2,000+ per month). Two plan types: Lyro AI Agent + Tidio Help Desk (combined AI and human), and Lyro AI Agent only (add-on to Zendesk, Salesforce, or other help desks). Premium Plan available via sales contact.

T

Tellius

Free

Chat assistants

The Agentic Analytics Platform that delivers finished intelligence from your enterprise data — before you ask.

Two tiers: Premium (customized pricing, up to 10 users, hosted on Tellius Cloud, free trial available) and Enterprise (customized pricing, unlimited users, flexible deployment on customer cloud, on-premises, or Tellius Cloud, requires sales contact).

H

Hume AI

Free

Voice & speech

The data and evaluation layer for emotionally intelligent voice AI

Free plan at $0/month; Starter at $3/month; Creator at $7/month (1st month 50% off); Pro at $70/month; Scale at $200/month; Business at $500/month; Enterprise custom pricing. Usage-based overages apply for TTS characters and EVI minutes.

D

Deepgram

Free

Voice & speech

The most accurate and cost-effective real-time APIs for speech-to-text, text-to-speech, and voice agents

Free tier includes $200 credit then pay-as-you-go. Growth plan starts at $4K+/year with pre-paid credits (save up to 20%). Enterprise pricing available via sales. STT streaming from $0.0048/min (Nova-3), TTS and Voice Agent API usage-based.