Twilio is a cloud communications platform that enables users to make and receive calls, send and receive messages, and more using APIs.
Varies based on usage
Best Retell AI Alternatives ranked by AI · updated Aug 2026
Retell AI is a developer platform for building and deploying real-time AI phone agents. It targets teams creating customer-support, qualification, scheduling, and other voice workflows with programmable call behavior.
Top 6 Retell AI alternatives
Dialogflow is a natural language understanding platform used to design and integrate conversational user interfaces into mobile apps, web applications, devices, bots,...
Free tier available, with paid plans starting at $0.002 per request
Amazon Connect is a cloud-based contact center service by Amazon Web Services.
Varies based on usage
VoiceIQ is an AI voice-agent platform for businesses that want to automate inbound and outbound phone conversations. It is designed for customer-service...
Pros
- Automates phone conversations instead of only text-based support
- Designed for business workflows and lead handling
- Can reduce the need for live-agent coverage on routine calls
Cons
- Public pricing and detailed plan limits are not clearly documented
- Less independently documented than larger voice-AI platforms
- Advanced integrations and customization may require vendor assistance
Smith.ai provides AI and human receptionist services for small businesses, agencies, and professional practices. It handles calls, lead intake, scheduling, and transfers,...
Pros
- Combines AI answering with optional human receptionists
- Stronger lead qualification and escalation than most AI-only services
- Integrates with calendars, CRMs, and common business workflows
Cons
- More expensive than AI-only alternatives for substantial human coverage
- Plans and usage limits can be complex to compare
- May be more service-oriented than businesses wanting a developer-controlled voice agent
From $95/mo
Dasha AI is a developer platform for building voice and text conversational applications, including phone agents and automated assistants. It combines natural-language...
Pros
- Supports both voice calls and text-based conversational applications
- Provides dialogue scripting and developer tools for building multi-turn agents
- Designed for integrating conversational agents into business workflows
Cons
- Less ecosystem adoption than Twilio or Google Cloud
- Commercial pricing is less transparent than newer pay-as-you-go platforms
- Requires more development work than no-code voice-agent products
Usage-based; contact sales for commercial pricing
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