Back to Fastren

Synthflow

Freemium
ai voice agentconversational aino-codecall automationsales automationcustomer supportvoicebotapilead generation

A no-code platform for building, deploying, and managing hyper-realistic AI voice agents that handle inbound and outbound calls, automate tasks like lead qualification, appointment setting, and customer support with human-like conversation.

Try it out

Synthflow provides a comprehensive suite for businesses to create their own AI voice agents without writing any code. The platform is designed for sales, marketing, and customer service teams to automate phone-based interactions effectively. Users can leverage a drag-and-drop interface to design complex conversational flows, integrate with their existing CRMs, and deploy agents that can handle interruptions and nuanced dialogue. Its unique value proposition lies in the extremely low latency and high-quality synthetic voices, which create a more natural and less robotic user experience. By offering detailed analytics and robust integrations, Synthflow aims to be the central hub for voice-based AI automation.

Pros

  • No-code, drag-and-drop interface simplifies the creation of complex voice agents.
  • Very low latency (<500ms) enables more natural, real-time conversations.
  • Features hyper-realistic voices from providers like ElevenLabs, with options to control emotion.
  • Native integrations with GoHighLevel, Zapier, and Make, plus a robust API for custom workflows.
  • Agents can handle interruptions and complex conversational tangents, mimicking human interaction.
  • Provides a clear analytics dashboard to track call volume, duration, and agent performance.

Cons

  • Usage-based pricing can become expensive and unpredictable, especially for high-volume call campaigns.
  • While no-code, designing a truly effective and natural-sounding conversational flow still requires significant skill and testing.
  • As a newer platform, it may lack some of the advanced enterprise features of more established telephony providers.
  • Performance is dependent on third-party models (e.g., OpenAI for LLM, ElevenLabs for TTS), which can introduce external variables.

Key features

  • No-Code Conversation Builder
  • Human-Like TTS Voices
  • Low-Latency Speech Recognition (STT)
  • LLM Integration (GPT-3.5, GPT-4, etc.)
  • Inbound and Outbound Calling
  • Zapier & Webhook Integrations
  • Performance Analytics Dashboard
  • API Access

Integrations

GoHighLevelZapierMake.comTwilioOpenAIElevenLabsDeepgramWebhooks

Target audience

Sales teams, marketing agencies, call centers, and businesses seeking to automate voice communication for lead generation, appointment setting, and customer support.

Ratings & Reviews

0.0

Based on 0 reviews

Key Metrics

Founded

2023

Headquarters

San Francisco, USA

Pricing Tiers

Pay As You Go

$0/mo platform fee + pay-per-use for minutes. Includes 1 phone number, 1 agent, and email support.

Free

Hobby

Platform fee + pay-per-use for minutes. Includes 5 phone numbers, 5 agents, basic analytics, and email support.

$49/mo

Starter

Platform fee + pay-per-use for minutes. Includes 10 phone numbers, 10 agents, advanced analytics, and priority email support.

$99/mo

Pro

Platform fee + pay-per-use for minutes. Includes 50 phone numbers, 50 agents, advanced analytics, and priority support.

$499/mo

Enterprise

Custom platform fee and usage rates. Includes unlimited agents, dedicated infrastructure, custom integrations, and a dedicated account manager.

Custom

Frequently Asked Questions

Top Alternatives to Synthflow

Bland.ai

A developer-first option with a robust API for programmatically building and scaling AI phone agents, ideal for teams that prefer code over a no-code UI.

Air.ai

A competitor focused on providing a turn-key AI Sales Development Representative (SDR) that can autonomously run entire sales campaigns with minimal setup.

Vapi.ai

An API-first platform for developers to build real-time, voice-first AI applications, offering deep technical control over the call and conversation stack.

Ready to get started?

Join thousands of users and see how Synthflow can transform your workflow today.

Visit Synthflow