Backed by
the investors of

Retell AI vs Synthflow AI assistant

The best way to compare Retell AI vs Synthflow: audio samples, latency, features, plans, pricing, and more.

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

Understand which is the bestAI voice solution for you

Book a free call with our AI Consulstant

Retell AI

API for voice AI. Effortlessly integrate human-like Voice AI into your product. | We are building an API that enables your product to provide an intuitive and engaging way for user interaction - through voice.
vs

Synthflow

First human-like conversational AI voice assistants. Easily create AI voice assistants to make outbound calls, answer inbound calls, and schedule appointments 24/7 - no coding required!

Features

Retell AI Features

Interruption Handling
Emotional Understanding
Language & Multilingual Support
Visual Flow Builder
Function Calling
Multi-Channel Support

Synthflow Features

Interruption Handling
Emotional Understanding
Language & Multilingual Support
Visual Flow Builder
Function Calling
Multi-Channel Support

Features - Conclusion

  • Retell AI stands out with its features including interruption handling, emotional understanding, language & multilingual support, visual flow building, function calling, and potentially multi-channel support. While it may lack multi-regional calling capabilities, its comprehensive feature set makes it a robust choice for various applications.In contrast.
  • Synthflow AI offers interruption handling, emotional understanding, visual flow building, function calling, and multi-regional calling.
    However, it lacks explicit mention of language & multilingual support and multi-channel support beyond voice calling.
  • While, Retell AI excels in features like interruption handling, emotional understanding, multilingual support, and visual flow building, in contrast Synthflow AI focuses on similar capabilities with multi-regional calling but lacks clarity on multilingual and multi-channel support beyond voice.

Pricing & Plans

Retell AI Pricing

Pay as you go

$0 / minute

  • 10 concurrent calls

Custom based model

$0.11 / minute

  • Custom concurrent calls based on volumes

Synthflow Pricing

Starter

$29 / mo

  • 50 minutes of calling time

Pro

$450 / mo

  • 2500 minutes of calling time

Growth

$900 / mo

  • 6000 minutes of calling time

Agency

$1400 / mo

  • 6000 minutes of calling time

Pricing & Plans - Conclusion

  • Retell AI's usage-based pricing model offers flexibility with options like Conversation voice engine API and LLM Agent, accommodating varying needs and budgets. Prices range from $0.01/min for Telephony with Retell Twilio to $0.20/min for Retell LLM - GPT 4.0.
  • In contrast, Synthflow AI provides tiered subscription plans, starting from $29/month for the Starter Plan and scaling up to $1,400/month for the Agency Plan. Each plan offers progressively advanced features, catering to different user requirements and agency capabilities.
  • While Retell AI's usage-based model may suit occasional users or those with specific project needs, Synthflow AI's subscription plans provide comprehensive solutions for long-term use and agency-level deployments.

Customer Reviews

Deepgram Aura Reviews

4.5 out of 5
Average of 50 ratings from leading review sites.

Retellai is receiving high praise for its capability and efficiency, particularly in the realm of creating human-like assistants. Users appreciate the time and cost savings offered by Retellai's API, emphasizing its value over in-house development efforts. The platform is celebrated for its impressive demos and user-friendly design, with feedback consistently noting that it exceeds expectations. This array of positive reviews underscores Retellai's effectiveness and its potential to significantly enhance digital interactions through its advanced technology.

No items found.

Deepgram Aura Reviews

4.3 out of 5
Average of 33 ratings from leading review sites.

Synthflow is hailed as a breakthrough in the no-code arena, capturing the attention of both novice app builders and seasoned creators alike. While some users find it transformative, propelling it as a must-try for no-code enthusiasts, others have experienced setbacks, highlighting the importance of ongoing improvements and responsive customer support to truly meet user needs across various industries.

No items found.

Compare Alternatives

Summary

  • Retell AI offers a usage-based pricing model, catering to specific project needs, while Synthflow AI provides tiered subscription plans suitable for long-term use and agency-level deployments.
  • Retell AI boasts interruption handling, emotional understanding, and function calling, but lacks explicit multilingual support, while Synthflow AI provides interruption handling, emotional understanding, and visual flow building, but lacks multilingual support and multi-channel capabilities beyond voice calling.
  • Overall, Retell AI suits users with specific needs, while Synthflow AI offers a broader range of features for comprehensive AI agent development.