20+ Best Alternatives to Retell AI in 2026
Hire your AI call center for sales, support, and appointment scheduling
Looking for an alternative to Retell AI? Below are 20 AI startups working in the same space — ranked by our Neuron score so the most credible options come first. Each card shows what makes the tool a viable substitute, pricing signals, and funding stage.
- 1View alternative →
PolyAI
$120MThe world's most lifelike voice AI agents for enterprise customer service.
Why it's similar: Shares categories with Retell AI — AI Agents, AI Voice & Speech.
💵 Enterprise · Contact sales
- 2View alternative →
Gnani.ai
UndisclosedAutomate voice, SMS, WhatsApp, chat and email with AI agents that understand intent, trigger workflows, and close the loop.
Why it's similar: Shares categories with Retell AI — AI Agents, AI Voice & Speech.
💵 Enterprise · Contact sales
- 3View alternative →
Uniphore
$870MEnterprise business AI for conversations, agents, and data
Why it's similar: Shares categories with Retell AI — AI Agents, AI Customer Support.
💵 Custom
- 4View alternative →
Quo
$161MAI-driven business phone and front office for growing teams
Why it's similar: Shares categories with Retell AI — AI Voice & Speech, AI Customer Support.
💵 Free trial · From $15/mo
- 5View alternative →
Crescendo
$50MAI-native contact center blending agents and humans
Why it's similar: Shares categories with Retell AI — AI Agents, AI Customer Support.
💵 Usage
- 6View alternative →
Ema
$86MUniversal AI employee for the enterprise
Why it's similar: Shares categories with Retell AI — AI Agents, AI Customer Support.
💵 Enterprise · Contact sales
- 7View alternative →
Hippocratic AI
$461MSafe AI agents for healthcare
Why it's similar: Shares categories with Retell AI — AI Agents, AI Voice & Speech.
💵 Enterprise · Contact sales
- 8View alternative →
Vida
$7MAI agent OS for phone and messaging with carrier-grade telecom built in
Why it's similar: Shares categories with Retell AI — AI Agents, AI Voice & Speech.
💵 Enterprise · Contact sales
- 9View alternative →
Sierra
$2.2BConversational AI agents for every business
Why it's similar: Shares categories with Retell AI — AI Agents, AI Customer Support.
💵 Enterprise · Contact sales
- 10View alternative →
Decagon
$546MAI agents that actually solve customer problems
Why it's similar: Shares categories with Retell AI — AI Agents, AI Customer Support.
💵 Enterprise · Contact sales
- 11View alternative →
Marr Labs
UndisclosedAI voice agents for regulated industries
Why it's similar: Shares categories with Retell AI — AI Voice & Speech, AI Customer Support.
💵 Custom
- 12View alternative →
Typewise
UndisclosedEnterprise AI agent platform that resolves customer service tickets end to end
Why it's similar: Shares categories with Retell AI — AI Agents, AI Customer Support.
💵 Enterprise · Contact sales
- 13View alternative →
Beside
$32MAn AI receptionist for the real economy that never misses a call
Why it's similar: Shares categories with Retell AI — AI Voice & Speech, AI Customer Support.
💵 Free
- 14View alternative →
Agency
$20MAgentic AI for customer success and customer experience
Why it's similar: Shares categories with Retell AI — AI Agents, AI Customer Support.
💵 Enterprise · Contact sales
- 15View alternative →
Parloa
$562MAn AI Agent Management Platform that transforms customer conversations into lasting loyalty for contact centers.
Why it's similar: Shares categories with Retell AI — AI Agents, AI Customer Support.
💵 Enterprise · Contact sales
- 16View alternative →
Sesame
$307.6MLifelike voice companions and AI smart glasses
Why it's similar: Shares categories with Retell AI — AI Agents, AI Voice & Speech.
💵 Freemium
- 17View alternative →
Hume AI
$73.9MEmpathic AI voice and emotion intelligence
Why it's similar: Shares categories with Retell AI — AI Voice & Speech, AI Customer Support.
💵 Enterprise · Contact sales
- 18View alternative →
Numa
$48MAI agents that answer every call and fill the service bay for dealerships
Why it's similar: Shares categories with Retell AI — AI Voice & Speech, AI Customer Support.
💵 Free
- 19View alternative →
GetVocal
$30MGoverned conversational AI phone agents for regulated enterprises
Why it's similar: Shares categories with Retell AI — AI Voice & Speech, AI Customer Support.
💵 Free
- 20View alternative →
Moveworks
$315MAI copilot for enterprise IT and HR
Why it's similar: Shares categories with Retell AI — AI Agents, AI Customer Support.
💵 Enterprise · Contact sales
Frequently asked questions
What are the best alternatives to Retell AI?
The top-ranked alternatives to Retell AI on NeuronFeed are PolyAI, Gnani.ai, Uniphore, Quo, Crescendo. Rankings are based on our Neuron score, which weighs funding, momentum and editorial signal.
Is there a free alternative to Retell AI?
Yes — Beside, Numa, GetVocal offer a free plans. See the pricing column for each alternative above.
How is this list ranked?
We rank alternatives by shared categories with Retell AI, then by our proprietary Neuron score (0–100) which combines funding, team quality, momentum, and editorial input. The list refreshes every 30 days.
Retell AI vs PolyAI — which is better?
It depends on use case. PolyAI (The world's most lifelike voice AI agents for enterprise customer service.) is the #1-ranked alternative. See the full side-by-side at /compare/retell-ai-vs-polyai.
Explore more around Retell AI
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