PlayAI vs Synthflow vs Retell AI Comparison Chart

PlayAI

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Synthflow

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Retell AI

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Starting Price

per month

per month

per month
Free Version
Free Trial
Description

PlayAI is a cutting-edge platform that is redefining the use of voice AI in various industries. With its advanced TTS and STS models, custom voice creation, and user-friendly tools, PlayAI is empowering creators, businesses, and developers to generate high-quality audio content with ease.

As the company continues to innovate, it is well-positioned to become a leading force in the AI voice generation space. If you're looking to enhance your content creation, automate customer support, or build AI-powered voice assistants, PlayAI is a valuable tool to consider.


 

Synthflow AI is a no-code platform that empowers businesses to create and deploy sophisticated AI-powered voice assistants to automate phone calls. These assistants can handle both inbound and outbound calls, engaging in human-like conversations to perform a variety of tasks, thereby enhancing customer service and operational efficiency.

Synthflow AI offers extensive integration capabilities with popular CRM systems such as HubSpot and Freshworks, as well as other applications through tools like Zapier and Make.com. This allows for seamless data flow and workflow automation.

Founded in 2023, Retell AI is built by a tight-knit team of founders with rich backgrounds at Google, Meta, TikTok, ByteDance, and more. We launched publicly in early 2022, were accepted into Y Combinator in November 2023, and raised $4.6M in seed funding in May 2024 to propel innovation further.

Retell AI's mission is to transform how businesses connect with customers—creating AI voice agents that break communication barriers and create smoother, more responsive experiences.

Top Features
  • Generate AI voices in real-time
  • Highly Realistic AI Voices
  • Deploy your AI voices across different platforms
  • Voice Cloning
  • API Integration
  • Natural Language Processing (NLP)
  • Voice Customization
  • Multi-Language Support
  • Real-Time Appointment Booking
  • Post-Call Actions
  • Webhooks
  • Human-Like Interaction
  • Multi-modal bots supporting text and voice interactions
Suitable For
  • StartUps
  • StartUps
  • Enterprises
  • StartUps
  • Enterprises
Integrations
  • Google Chrome Google Chrome
  • Mozilla Firefox Mozilla Firefox
  • Twilio Twilio
  • Zapier Zapier
  • Cal.com Cal.com
Use-Cases
  • Convert written content into engaging audiobooks
  • Generate content in multiple languages
  • Voice Assistants
  • Create custom AI voices
  • Lead Qualification
  • Sales Outreach
  • Appointment Scheduling
  • Personalized Interactions
  • Data Collection and Analysis
  • Appointment Setter
  • Lead Qualification
  • Restaurant Receptionist
  • Property Management
Supported Platforms

Browser-based

Browser-based

Browser-based

Customer Support

Phone

Email

Email

Knowledge Base
  • Help Guides
  • Help Guides
  • Blog
Language Supported
  • English
  • Chinese
  • Spanish
  • French
  • English
  • German
  • Spanish
  • Portuguese
  • English
  • German
  • Spanish
  • French
  • Russian
  • Portuguese
Vendor Information
Company Name PlayAI Synthflow Retell AI
Location United States Germany United States
Founded Year 2019 2023 2023
No. of Employees 11-50 10-50 40-50