Synthflow vs. Vapi AI
Detailed Comparison
Choosing between Synthflow AI and Vapi AI depends on your business needs, but Synthflow offers unmatched scalability, multilingual capabilities, and advanced integrations, making it a top choice for industries like healthcare, telecom, and finance. Below is a side-by-side comparison to help you decide.
Compare the Total Cost of Usage
Discover how Synthflow provides more value at a lower cost.
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AI Bundle: Maximum Performance, Minimum Cost
Access a complete package of OpenAI LLM, transcriber, and voice API optimized for top-tier performance at the lowest price.
Seamless, Ready-to-Go Setup
Skip the trial-and-error: fully tested, high-performance tech stack saves you time, effort, and money. Plug in and go!
Ultimate Flexibility –
Use Your Own API Keys
Enjoy complete control and customization with enterprise package: integrate your API keys for a smooth, tailored experience.
Feature Comparison
Recognized by Industry Leaders
Synthflow powers customer service, sales, and scheduling automation across industries like healtchare, telecom, and finance.

Why Synthflow Outperforms Vapi AI
Scalability and Concurrency
Get started fast with Synthflow’s no-code setup and exclusive native CRM integrations. Deploy AI voice agents within minutes, enabling seamless data flow across platforms like HubSpot, GoHighLevel, and Zoho, with Salesforce and more CRM integrations coming soon, all designed to enhance your existing workflows.
Multilingual Capabilities
Synthflow offers support for 90+ languages, enabling businesses to connect with global audiences seamlessly. Retell AI only supports 50+ languages, limiting its reach for multilingual operations.
Workflow Customization
Synthflow features a no-code drag-and-drop interface, giving businesses full control to customize workflows quickly and easily. Retell AI relies on pre-built templates, which restrict flexibility and adaptation.
Low Latency
Synthflow ensures latency under 500ms for smoother and faster interactions, while Retell AI’s latency ranges from 700ms to 1500ms, potentially causing delays in customer engagement.
Advanced Integrations
Synthflow integrates seamlessly with CRM platforms like HubSpot, Zoho, and GoHighLevel, along with SIP trunking for any telephony provider. Retell AI is limited in its telephony options, restricting compatibility.
Dedicated Support
Synthflow provides 24/7 support and a dedicated success manager for every client. Retell AI lacks 24/7 support, which may lead to delays in resolving
critical issues.
Predictable Pricing and ROI
Synthflow offers clear, tiered pricing plans that cater to businesses of all sizes, ensuring transparency and cost-efficiency. Retell AI’s pricing structure may lack flexibility for growing businesses.
Synthflow offers clear, tiered pricing plans that cater to businesses of all sizes, ensuring transparency and cost-efficiency. Retell AI’s pricing structure may lack flexibility for growing businesses.
Synthflow AI is built to meet the demands of complex business operations with extensive scalability, advanced features, and robust global support.
Start your free trial today and experience why Synthflow outshines Retell AI.

Everything You Need to Know

Synthflow AI automates customer interactions with customizable AI voice assistants. It manages outbound (proactive outreach) and inbound (responsive) calls for tasks like lead qualification, customer support, and appointment scheduling. With no-code tools and flexible deployment options, Synthflow enhances engagement and streamlines communication using the latest technology.
Yes, AI can make phone calls through use of AI voice agents. These advanced AI-powered phone agents can autonomously handle phone conversations, following scripts and responding just like human agents. They can manage various tasks, from customer service to sales calls, providing a seamless experience without human intervention.
No, you don't need to be an expert in prompting. We provide templates to help you get started, and our AI agents are designed to be flexible with various types of prompts, offering a natural conversation experience.
Yes, you can create automations and workflows using third-party tools like Zapier. You can set up triggers and actions, and our AI agent will execute those reliably, offering a natural conversation experience.
You need to have a Twilio account. Please bring your account IDs so you can purchase and get started with a number.
While Synthflow cannot provide legal advice, we recommend consulting with a legal professional to understand the specific rules and regulations applicable to using Synthflow AI. However, it is treated as a robocall.
The Synthflow AI Terms of Service require our users to confirm that they have obtained explicit written permission from all contacts they import for outreach via artificial and pre-recorded voice calls. They also agree to comply with all relevant regulations and guidelines under the TCPA, TSR, and other applicable laws in their communications with these contacts.Please consult your legal team before using Synthflow if you have any questions.
Yes, call transcripts and recordings are available for retrieval via API, Zapier, Hubspot or GoHighLevel.
Our AI uses advanced voice synthesis to deliver natural, lifelike conversations in multiple languages, including English, Spanish, German, Portuguese, and French, ensuring customers experience engaging and personal interactions globally.
The AI automates inbound and outbound calls, efficiently managing large volumes and ensuring smooth, professional call handling. After-call actions, such as sending scheduling links or follow-up messages, can also be configured to enhance customer interactions..
Sentiment analysis detects customer emotions during calls, enabling the AI to adapt its responses, which improves service quality and customer satisfaction. If the AI can't handle a query, it can seamlessly transfer the call to a human agent, ensuring the customer receives the best possible service.
The AI offers custom models, unlimited call handling, voice cloning for personalized interactions, and robust infrastructure to support numerous simultaneous calls.
We prioritize data security with encryption and compliance with international standards to protect all your communications and customer information.
AI voice agents are used for tasks like AI receptionists, front desk assistants, concierges, and AI answering services. They manage customer inquiries, schedule appointments, provide information, and streamline customer service operations without human involvement.