# Retell AI vs Synthflow Comparison
---
## AI Generated Summary
- **G2 reviewers report** that Retell AI excels in user experience, particularly highlighting its **ease of setup** and customization options. Users appreciate how quickly they can connect voice agents to phone calls, making it a valuable tool for qualifying leads and reducing manual work.
- **Users say** that Synthflow offers a strong visual flow builder, which simplifies the process of creating workflows. The no-code approach allows users to configure voice agents quickly, with one reviewer noting they set up a French-speaking agent in under 30 minutes, showcasing its **user-friendly design**.
- **Reviewers mention** that Retell AI's voice agents sound natural and are capable of switching between multiple agents seamlessly. This flexibility is a significant advantage for businesses looking to enhance customer interactions without compromising on quality.
- **According to verified reviews** , Synthflow's initial setup is also praised for being straightforward, but some users feel it lacks the depth and capabilities of Retell AI when it comes to **lead qualification** and **customer interaction automation**.
- **G2 reviewers highlight** that Retell AI has a higher overall satisfaction score, reflecting its strong performance in areas like **quality of support** and **ease of use**. Users feel well-supported and find the platform intuitive, which contributes to a smoother daily operation.
- **Users report** that while Synthflow is effective for smaller teams, it may not scale as well as Retell AI for businesses with more complex needs. The feedback indicates that Retell AI's robust features make it a better partner for companies looking to automate and streamline their operations.



---
## Frequently Asked Questions

### What is the difference between Retell AI vs Synthflow?

Retell AI stands out for higher reviewer satisfaction across setup, support, and overall experience compared to Synthflow.

| | [Retell AI](https://www.g2.com/products/retell-ai/reviews) | [Synthflow](https://www.g2.com/products/synthflow/reviews) |
| --- | --- | --- |
| G2 Rating (reviews) | 4.8/5 (2,638 reviews) | 4.5/5 (1,015 reviews) |
| Largest Segment | Small-Business | Small-Business |
| Ease of Setup score | 8.8 | 8.1 |
| Quality of Support score | 8.3 | 7.8 |
| Top Reviewer-Cited Strength | Super simple to use, highly customizable, and strong integrations | Ease of use and intuitive flow builder |



### How do the pricing models of Retell AI and Synthflow compare?

Retell AI is rated higher for value, with reviewers expressing greater satisfaction with its pricing compared to Synthflow.

- **Retell AI:** Reviewers highlight transparent pricing and a pay-as-you-go model that is appreciated for flexibility, though some mention costs can rise with call volume.
- **Synthflow:** Reviewers frequently cite cost limitations and expensive higher tiers, especially for features like bringing your own phone number, with 145 all-time mentions of "Expensive" and 97 for "Cost Limitations".
- **Switching reasons:** Recent reviews mention switching to Retell AI for more transparent pricing and better value at scale.



### What are the best alternatives to Retell AI and Synthflow?

The top three alternatives to Retell AI and Synthflow are ElevenLabs, Murf.ai, and GHL.

| Product | G2 Rating (reviews) | Largest Segment | Pricing Insight | Top Reviewer-Cited Strength |
| --- | --- | --- | --- | --- |
| [Retell AI](https://www.g2.com/products/retell-ai/reviews) | 4.8/5 (2,638 reviews) | Small-Business | Transparent pricing, flexible pay-as-you-go | Highly customizable, easy setup, strong integrations |
| [Synthflow](https://www.g2.com/products/synthflow/reviews) | 4.5/5 (1,015 reviews) | Small-Business | Cost limitations at higher tiers | Intuitive flow builder, easy integrations |
| [ElevenLabs](https://www.g2.com/products/elevenlabsio/reviews) | 4.5/5 (1,175 reviews) | Small-Business | — | Natural-sounding voice synthesis |
| [Murf.ai](https://www.g2.com/products/murf-ai/reviews) | 4.7/5 (1,414 reviews) | Small-Business | — | High-quality voice generation and editing |



### Which AI Agents For Business Operations features should I prioritize when comparing Retell AI and Synthflow?

Buyers should prioritize ease of setup, integration capabilities, voice quality, workflow customization, and support responsiveness when comparing Retell AI and Synthflow.

- **Ease of Setup:** Retell AI scores 8.8, Synthflow 8.1; 148 all-time mentions for Synthflow's setup ease.
- **Integration Capabilities:** Retell AI integrations mentioned in 457 reviews for Make, 89 for GHL, 65 for n8n; Synthflow integrations cited in 207 reviews for Make, 63 for GHL, 31 for Twilio.
- **Voice Quality:** Retell AI is praised for natural, human-like voices in recent reviews; Synthflow receives positive feedback for natural-sounding voice synthesis.
- **Workflow Customization:** Retell AI is noted for a highly customizable workflow builder; Synthflow is recognized for its intuitive flow builder and customizability (40 all-time mentions).
- **Support Responsiveness:** Retell AI scores 8.3, Synthflow 7.8 on Quality of Support.



### What are the pros and cons of Retell AI vs Synthflow?

Retell AI's headline strength is its ease of use and customization, while Synthflow is most praised for its intuitive flow builder and integrations.

- **Retell AI strengths:** Super simple to use, highly customizable, natural-sounding voices, strong integrations, and rapid setup.
- **Retell AI trade-offs:** Some reviewers mention pricing can increase with call volume and a desire for more ready-to-use templates.
- **Synthflow strengths:** Intuitive flow builder, easy integrations (143 all-time mentions), user-friendly interface (100 mentions), and efficient automation (64 mentions).
- **Synthflow trade-offs:** Reviewers cite cost limitations (97 mentions), expensive higher tiers (145 mentions), integration issues (34 mentions), and a learning curve (59 mentions).



### Is Retell AI or Synthflow better for small businesses?

Retell AI is the better fit for small businesses, with higher satisfaction among small-business reviewers and a stronger overall rating.

- **Retell AI:** Largest segment is Small-Business; reviewers consistently highlight ease of use, rapid setup, and strong value for small teams.
- **Synthflow:** Largest segment is Small-Business; reviewers note ease of use and intuitive setup, but also mention cost limitations and integration challenges for small businesses.



### Which AI Agents For Business Operations platform has better integrations?

Retell AI is favored for integrations, with higher all-time mention counts and broader third-party tool support in reviews.

- **Retell AI:** Make (457 all-time mentions), GHL (89), n8n (65); reviewers highlight robust integration options and workflow automation capabilities.
- **Synthflow:** Make (207), GHL (63), Twilio (31); reviewers note easy integrations but cite some limitations and issues with certain third-party tools.



### How do Retell AI and Synthflow compare on customer support?

Retell AI and Synthflow are close on Quality of Support, with Retell AI scoring 8.3 and Synthflow 7.8, a difference below the materiality threshold, indicating near parity.

- **Retell AI:** Reviewers describe support as responsive and helpful, with positive experiences in onboarding and troubleshooting.
- **Synthflow:** Reviewers report generally good support, though some mention delays or limited help at lower tiers, especially for complex integrations.



### Which is easier to implement, Retell AI or Synthflow?

Retell AI leads on Ease of Setup with a score of 8.8 versus Synthflow's 8.1, a difference above the materiality threshold.

- **Retell AI:** Reviewers consistently praise the intuitive interface, rapid onboarding, and minimal technical barriers to implementation.
- **Synthflow:** Reviewers note an easy initial setup and user-friendly flow builder, but some mention a steeper learning curve for advanced features and integration setup.



### Which product has better Integration?

Retell AI is the stronger product for Integration, with higher reviewer satisfaction and broader integration support.

- **Retell AI:** Integration is the most frequently mentioned feature, with 457 all-time mentions for Make, 89 for GHL, and 65 for n8n; reviewers highlight robust integration capabilities and workflow automation.
- **Synthflow:** Integration is also a key feature, with 207 mentions for Make, 63 for GHL, and 31 for Twilio; reviewers note easy integrations but cite some limitations and issues with certain third-party tools.



| | Retell AI | Synthflow | 
|---|---|---|
| **Star Rating** | 4.8 out of 5 | 4.5 out of 5 | 
| **Total Reviews** | 2,638 | 1,015 | 
| **Largest Market Segment** | Small-Business (85.4% of reviews) | Small-Business (92.8% of reviews) | 
| **Entry Level Price** | $0.07 1 Minute | Contact Us | 

---
## Top Pros & Cons

### Retell AI

Pros:
- Ease of Use (494 reviews)
- Helpful (144 reviews)

Cons:
- Missing Features (116 reviews)
- Expensive (87 reviews)

### Synthflow

Pros:
- Ease of Use (364 reviews)
- Setup Ease (148 reviews)

Cons:
- Expensive (145 reviews)
- Cost Limitations (97 reviews)

---
## Ratings Comparison
| Rating | Retell AI | Synthflow | 
|---|---|---|
  | **Meets Requirements** | 9.0 (64 reviews) | 8.5 (951 reviews) | 
  | **Ease of Use** | 8.9 (2596 reviews) | 8.5 (987 reviews) | 
  | **Ease of Setup** | 8.8 (65 reviews) | 8.1 (980 reviews) | 
  | **Ease of Admin** | 9.1 (41 reviews) | 8.2 (565 reviews) | 
  | **Quality of Support** | 8.3 (57 reviews) | 7.8 (820 reviews) | 
  | **Has the product been a good partner in doing business?** | 8.9 (39 reviews) | 8.2 (503 reviews) | 
  | **Product Direction (% positive)** | 9.6 (54 reviews) | 9.4 (956 reviews) | 

---
## Pricing

### Retell AI

#### Entry-Level Pricing

Plan: Pay as you go

Price: $0.07 1 Minute

Description: $0 to start.
Self-Serve
Start instantly.

Key Features:
- $10  Free credits
- 20 Free concurrent calls
- 10 Free Knowledge Bases

[Browse all 2 editions](https://www.g2.com/products/retell-ai/pricing)

#### Free Trial

Yes

### Synthflow

#### Entry-Level Pricing

Plan: Enterprise

Price: Contact Us

Description: For scaling teams handling 10,000+ minutes/month. Purpose-built for enterprise-grade reliability, scale, and security. 

Key Features:
- Guaranteed Uptime & SLA 99.99%
- SIP Trunking, Synthflow Native Telephony
- White Label & Reseller Toolkit

[Learn more about Synthflow](https://www.g2.com/products/synthflow/reviews)

#### Free Trial

Yes

---
## Features Comparison By Category

### Artificial Intelligence

| Product | Score | Reviews |
|---|---|---|
| **Retell AI** | N/A | N/A |
| **Synthflow** | N/A | N/A |

#### Additional Functionality

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Tagging** | Not enough data | Not enough data | 
| **Natural Language Processing** | Not enough data | Not enough data | 
| **Data Extraction** | Not enough data | Not enough data | 
| **Multi-Language** | Not enough data | Not enough data | 
| **Predictive Analytics** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **Speech Recognition** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 
| **Data Storage Management** | Not enough data | Not enough data | 
| **Virtual Personal Assistant (VPA)** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Customer Segmentation** | Not enough data | Not enough data | 
| **Collaboration Tools** | Not enough data | Not enough data | 
| **Data Import/Export** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **For eCommerce** | Not enough data | Not enough data | 
| **Role-Based Permissions** | Not enough data | Not enough data | 
| **Customizable Branding** | Not enough data | Not enough data | 
| **Search/Filter** | Not enough data | Not enough data | 
| **Monitoring** | Not enough data | Not enough data | 
| **Document Management** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Data Visualization** | Not enough data | Not enough data | 
| **Trend Analysis** | Not enough data | Not enough data | 
| **Machine Learning** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **Alerts/Escalation** | Not enough data | Not enough data | 
| **Performance Metrics** | Not enough data | Not enough data | 
| **Real-Time Data** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **Mobile App** | Not enough data | Not enough data | 
| **Multiple Data Sources** | Not enough data | Not enough data | 
| **For Sales Teams/Organizations** | Not enough data | Not enough data | 
| **Sentiment Analysis** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Chatbot** | Not enough data | Not enough data | 
| **Workflow Automation** | Not enough data | Not enough data | 

### AI Customer Support Agents

| Product | Score | Reviews |
|---|---|---|
| **Retell AI** | 8.6/10 | 13 |
| **Synthflow** | N/A | N/A |

#### Dashboard

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Dashboard** | Not enough data | Not enough data | 

#### Speech Recognition

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Speech Recognition** | Not enough data | Not enough data | 

#### Compliance Management

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Compliance Management** | Not enough data | Not enough data | 

#### Autonomous Task Execution

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 

#### Sentiment Analysis

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Sentiment Analysis** | Not enough data | Not enough data | 

#### Data Security

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Data Security** | Not enough data | Not enough data | 

#### Third-Party Integration

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Third-Party Integration** | Not enough data | Not enough data | 

#### Human-in-the-loop (HITL)

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Human-in-the-loop (HITL)** | Not enough data | Not enough data | 

#### Agentic Task Execution

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Agentic Task Execution** | Not enough data | Not enough data | 

#### Natural Language Processing

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Natural Language Processing** | Not enough data | Not enough data | 

#### Conversational AI

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Conversational AI** | Not enough data | Not enough data | 

#### Performance Metrics

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Performance Metrics** | Not enough data | Not enough data | 

#### Interaction Tracking

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Interaction Tracking** | Not enough data | Not enough data | 

#### Knowledge Base Management

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Knowledge Base Management** | Not enough data | Not enough data | 

#### CRM Integration

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **CRM Integration** | Not enough data | Not enough data | 

#### Inquiry Routing

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Inquiry Routing** | Not enough data | Not enough data | 

#### Contextual Guidance

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Contextual Guidance** | Not enough data | Not enough data | 

#### Communications Management

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Communications Management** | Not enough data | Not enough data | 

#### Proactive Chat

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Proactive Chat** | Not enough data | Not enough data | 

#### Ticket Management

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Ticket Management** | Not enough data | Not enough data | 

#### Customer Query Resolution - AI Customer Support Agents

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Automated Ticket Resolution** | 8.6 (12 reviews) | Not enough data | 
| **Contextual Response Generation** | 8.8 (12 reviews) | Not enough data | 
| **Sentiment Analysis** | 8.3 (12 reviews) | Not enough data | 
| **Knowledge Base Utilization** | 9.2 (12 reviews) | Not enough data | 
| **Multilingual Support** | 8.9 (12 reviews) | Not enough data | 

#### Customer Interaction Automation - AI Customer Support Agents

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Proactive Customer Outreach** | 8.8 (11 reviews) | Not enough data | 
| **Feedback Collection** | 8.8 (11 reviews) | Not enough data | 
| **Escalation Handling** | 8.8 (12 reviews) | Not enough data | 
| **Workflow Optimization** | 8.6 (12 reviews) | Not enough data | 

#### Automation

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Customer Interaction Automation** | 8.6 (13 reviews) | Not enough data | 
| **Feedback Collection** | 8.5 (12 reviews) | Not enough data | 
| **Document Processing** | 7.9 (12 reviews) | Not enough data | 

#### Autonomy

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Independent Decision Making** | 8.2 (12 reviews) | Not enough data | 
| **Adaptive Responses** | 8.2 (12 reviews) | Not enough data | 
| **Task Execution** | 8.6 (12 reviews) | Not enough data | 
| **Problem Solving** | 8.5 (12 reviews) | Not enough data | 

### AI Sales Assistant

| Product | Score | Reviews |
|---|---|---|
| **Retell AI** | 7.9/10 | 17 |
| **Synthflow** | 8.0/10 | 275 |

#### Lead Facilitation

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Customer-facing Chatbot** | 8.1 (17 reviews) | Feature Not Available | 
| **Lead Qualification** | 7.6 (17 reviews) | 7.8 (272 reviews) | 
| **Lead Follow-up** | 8.2 (17 reviews) | 7.8 (263 reviews) | 
| **Meeting Scheduling ** | 8.5 (17 reviews) | 7.9 (261 reviews) | 

#### Organization

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Opportunity and Pipeline Management ** | 8.0 (17 reviews) | 7.7 (256 reviews) | 
| **Data Entry** | 8.2 (16 reviews) | 7.8 (250 reviews) | 
| **Integrations / APIs** | 8.7 (17 reviews) | 8.1 (251 reviews) | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **Meeting Management** | Not enough data | Not enough data | 
| **Calendar Management** | Not enough data | Not enough data | 
| **Call Management** | Not enough data | Not enough data | 
| **Document Management** | Not enough data | Not enough data | 
| **Contact Management** | Not enough data | Not enough data | 
| **Task Management** | Not enough data | Not enough data | 
| **Lead Management** | Not enough data | Not enough data | 
| **Content Management** | Not enough data | Not enough data | 
| **Notes Management** | Not enough data | Not enough data | 
| **Sales Activity Management** | Not enough data | Not enough data | 
| **Email Management** | Not enough data | Not enough data | 

#### Performance Analysis

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Coaching ** | 7.4 (17 reviews) | Feature Not Available | 
| **Peformance Tracking** | 7.3 (16 reviews) | 7.8 (246 reviews) | 
| **Email Tracking** | Not enough data | Not enough data | 
| **Call Tracking** | Not enough data | Not enough data | 

#### Sales Analysis

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **ROI Forecasting ** | 6.8 (15 reviews) | Feature Not Available | 
| **Sales Forecasting ** | 7.1 (15 reviews) | Feature Not Available | 

#### Generative AI

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **AI Text Generation** | 7.4 (15 reviews) | 8.2 (239 reviews) | 
| **AI Text Summarization** | 8.8 (15 reviews) | 8.1 (241 reviews) | 
| **Generative AI** | Not enough data | Not enough data | 

#### Agentic AI - AI Sales Assistant

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Autonomous Task Execution** | 7.8 (15 reviews) | 8.2 (75 reviews) | 
| **Multi-step Planning** | 8.0 (15 reviews) | 8.0 (73 reviews) | 
| **Cross-system Integration** | 8.6 (15 reviews) | 8.0 (74 reviews) | 
| **Adaptive Learning** | 7.1 (15 reviews) | 8.0 (73 reviews) | 
| **Natural Language Interaction** | 8.2 (15 reviews) | 8.3 (73 reviews) | 
| **Proactive Assistance** | 7.7 (15 reviews) | 8.2 (74 reviews) | 
| **Decision Making** | 8.2 (15 reviews) | 8.3 (75 reviews) | 
| **AI/Machine Learning** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Email Response Control** | Not enough data | Not enough data | 
| **Speech Recognition** | Not enough data | Not enough data | 
| **Customer Engagement** | Not enough data | Not enough data | 
| **Dashboard** | Not enough data | Not enough data | 
| **Chat/Messaging** | Not enough data | Not enough data | 
| **AI Writing Assistant** | Not enough data | Not enough data | 
| **For Sales Teams/Organizations** | Not enough data | Not enough data | 
| **Sales Automation** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **CRM** | Not enough data | Not enough data | 
| **Predictive Analytics** | Not enough data | Not enough data | 
| **Lead Scoring** | Not enough data | Not enough data | 
| **Templates** | Not enough data | Not enough data | 
| **Reminders** | Not enough data | Not enough data | 
| **Email Templates** | Not enough data | Not enough data | 
| **SMS Messaging** | Not enough data | Not enough data | 
| **Personalization** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 
| **Conversation Intelligence** | Not enough data | Not enough data | 
| **Lead Engagement** | Not enough data | Not enough data | 
| **Customer Database** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Omnichannel Outreach** | Not enough data | Not enough data | 
| **Workflow Automation** | Not enough data | Not enough data | 

### AI Agents For Business Operations

| Product | Score | Reviews |
|---|---|---|
| **Retell AI** | 8.3/10 | 34 |
| **Synthflow** | 8.0/10 | 664 |

#### Responses

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Personalization** | 8.5 (24 reviews) | 8.1 (607 reviews) | 
| **Route To Human** | 8.8 (24 reviews) | 7.9 (606 reviews) | 
| **Natural Language Understanding (NLU)** | 8.5 (25 reviews) | 8.2 (604 reviews) | 
| **Multi-Language** | Not enough data | Not enough data | 

#### Automation - AI Agents

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Sales Follow-Up** | 8.6 (20 reviews) | 8.1 (553 reviews) | 
| **Customer Interaction Automation** | 8.9 (23 reviews) | 8.1 (564 reviews) | 
| **Lead Generation** | 8.6 (22 reviews) | 8.0 (560 reviews) | 
| **Document Processing** | 7.5 (19 reviews) | 7.7 (533 reviews) | 
| **Feedback Collection** | 8.1 (19 reviews) | 7.9 (530 reviews) | 
| **Natural Language Processing** | Not enough data | Not enough data | 
| **Simulation and Scenario Generation** | Not enough data | Not enough data | 

#### Platform

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Conversation Editor** | 8.3 (27 reviews) | 8.1 (605 reviews) | 
| **Integration** | 8.5 (26 reviews) | 8.2 (593 reviews) | 
| **Human-In-The-Loop** | 8.2 (24 reviews) | 8.0 (578 reviews) | 
| **Drag & Drop Editor** | Not enough data | Not enough data | 
| **Human-in-the-loop (HITL)** | Not enough data | Not enough data | 

#### Autonomy -  AI Agents

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Independent Decision Making** | 8.1 (19 reviews) | 8.1 (528 reviews) | 
| **Adaptive Responses** | 8.2 (19 reviews) | 8.1 (525 reviews) | 
| **Task Execution** | 8.5 (20 reviews) | 8.1 (532 reviews) | 
| **Problem Solving** | 8.1 (19 reviews) | 8.1 (530 reviews) | 

#### Generative AI

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **AI Text Generation** | 7.2 (21 reviews) | 8.1 (572 reviews) | 
| **AI Text Summarization** | 8.3 (22 reviews) | 8.0 (562 reviews) | 

#### Additional Functionality

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Agent Collaboration** | Not enough data | Not enough data | 
| **Data Governance** | Not enough data | Not enough data | 
| **Prompt Engineering** | Not enough data | Not enough data | 
| **Feedback Management** | Not enough data | Not enough data | 
| **For No-Code Development** | Not enough data | Not enough data | 
| **Version Control** | Not enough data | Not enough data | 
| **Role-Based Permissions** | Not enough data | Not enough data | 
| **Dynamic Modeling** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Memory Management** | Not enough data | Not enough data | 
| **Monitoring** | Not enough data | Not enough data | 
| **Scalability** | Not enough data | Not enough data | 
| **Cost Management** | Not enough data | Not enough data | 
| **Scheduling** | Not enough data | Not enough data | 
| **Natural Language Interface** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **Multiple LLM Models** | Not enough data | Not enough data | 
| **Integration Management** | Not enough data | Not enough data | 
| **Customizable Frameworks** | Not enough data | Not enough data | 
| **Pre-built Templates** | Not enough data | Not enough data | 
| **Analytics** | Not enough data | Not enough data | 
| **Intent Recognition** | Not enough data | Not enough data | 
| **Contextual Guidance** | Not enough data | Not enough data | 
| **Rules-Based Workflow** | Not enough data | Not enough data | 
| **Attended Automation** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **For Sales/Marketing** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Business Process Automation** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **Multi-Channel Communication** | Not enough data | Not enough data | 
| **Sentiment Analysis** | Not enough data | Not enough data | 
| **Deep Learning** | Not enough data | Not enough data | 
| **Code-free Development** | Not enough data | Not enough data | 
| **Compliance Management** | Not enough data | Not enough data | 
| **Automated Responses** | Not enough data | Not enough data | 
| **Knowledge Management** | Not enough data | Not enough data | 
| **Transfers/Routing** | Not enough data | Not enough data | 
| **Personalization** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Customer Experience Management** | Not enough data | Not enough data | 
| **Virtual Personal Assistant (VPA)** | Not enough data | Not enough data | 
| **Chatbot** | Not enough data | Not enough data | 
| **Speech Recognition** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 
| **Task Management** | Not enough data | Not enough data | 
| **Customer Engagement** | Not enough data | Not enough data | 
| **AI/Machine Learning** | Not enough data | Not enough data | 
| **Configurable Workflow** | Not enough data | Not enough data | 
| **Unattended Automation** | Not enough data | Not enough data | 
| **Conversation Intelligence** | Not enough data | Not enough data | 
| **Workflow Automation** | Not enough data | Not enough data | 
| **Proactive Error Detection** | Not enough data | Not enough data | 

### AI Agent Builders

| Product | Score | Reviews |
|---|---|---|
| **Retell AI** | 9.0/10 | 7 |
| **Synthflow** | N/A | N/A |

#### Customization - AI Agent Builders

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Natural Language Configuration** | 9.8 (7 reviews) | Not enough data | 
| **Tone Customization** | 9.3 (7 reviews) | Not enough data | 
| **Security Guardrails** | 9.3 (7 reviews) | Not enough data | 
| **API Security** | Not enough data | Not enough data | 
| **Data Security** | Not enough data | Not enough data | 
| **Authentication** | Not enough data | Not enough data | 

#### Functionality - AI Agent Builders

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Omni-channel Support** | 9.3 (7 reviews) | Not enough data | 
| **Agent Branding** | 8.3 (7 reviews) | Not enough data | 
| **Proactive Response Capabilities** | 9.5 (7 reviews) | Not enough data | 
| **Seamless Human Escalation** | 8.1 (7 reviews) | Not enough data | 
| **Multimedia Support** | Not enough data | Not enough data | 
| **Multi-Modal Input Support** | Not enough data | Not enough data | 

#### Data and Analytics - AI Agent Builders

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Analytics & Reporting** | 9.3 (7 reviews) | Not enough data | 
| **Contextual Awareness** | 8.8 (7 reviews) | Not enough data | 
| **Data Privacy Compliance** | 9.0 (7 reviews) | Not enough data | 

#### Integration - AI Agent Builders

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Workflow Automation** | 9.5 (7 reviews) | Not enough data | 
| **API Usage** | 8.8 (7 reviews) | Not enough data | 
| **Platform Interoperability** | 8.8 (7 reviews) | Not enough data | 
| **CRM Data Integration** | 8.3 (7 reviews) | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Version Control** | Not enough data | Not enough data | 
| **Scalability** | Not enough data | Not enough data | 
| **Personalization** | Not enough data | Not enough data | 
| **Data Extraction** | Not enough data | Not enough data | 
| **Webhooks** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Natural Language Processing** | Not enough data | Not enough data | 
| **Fallback Handling** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **Multiple LLM Models** | Not enough data | Not enough data | 
| **Built-in AI Assistant** | Not enough data | Not enough data | 
| **Automated Testing** | Not enough data | Not enough data | 
| **Data Governance** | Not enough data | Not enough data | 
| **Collaboration Tools** | Not enough data | Not enough data | 
| **Pre-built Templates** | Not enough data | Not enough data | 
| **Agent Design Tools** | Not enough data | Not enough data | 
| **Deep Learning** | Not enough data | Not enough data | 
| **Model Training** | Not enough data | Not enough data | 
| **Analytics** | Not enough data | Not enough data | 
| **Single Sign On** | Not enough data | Not enough data | 
| **Debugging** | Not enough data | Not enough data | 
| **Deployment Management** | Not enough data | Not enough data | 
| **Proactive Error Detection** | Not enough data | Not enough data | 

### AI Voice Assistants

| Product | Score | Reviews |
|---|---|---|
| **Retell AI** | 8.4/10 | 29 |
| **Synthflow** | 8.0/10 | 208 |

#### Voice Recognition - AI Voice Assistants

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Voice Recognition** | 8.3 (29 reviews) | 8.1 (200 reviews) | 

#### Speech Synthesis - AI Voice Assistants

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Speech Synthesis** | 8.4 (29 reviews) | 8.1 (199 reviews) | 
| **Customizable speech** | 8.3 (28 reviews) | 8.0 (197 reviews) | 
| **Multiple voice actions** | 8.5 (27 reviews) | 8.1 (194 reviews) | 

#### Security and privacy - AI Voice Assistants

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Encrypted communication** | 8.3 (27 reviews) | 7.9 (197 reviews) | 

#### Compatibility - AI Voice Assistants

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Cross platform compatibility** | 8.4 (27 reviews) | 8.1 (195 reviews) | 

### AI Agents

| Product | Score | Reviews |
|---|---|---|
| **Retell AI** | N/A | N/A |
| **Synthflow** | N/A | N/A |

#### Agentic AI - AI Agents

| Feature | Retell AI | Synthflow | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 
| **Multi-step Planning** | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | 
| **Adaptive Learning** | Not enough data | Not enough data | 
| **Natural Language Interaction** | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | 

---
## Categories
**Shared Categories (3):** [AI Voice Assistants](https://www.g2.com/categories/ai-voice-assistants), [AI Agents For Business Operations](https://www.g2.com/categories/ai-agents-for-business-operations), [AI Sales Assistant Software](https://www.g2.com/categories/ai-sales-assistant)

**Unique to Retell AI (2):** [ AI Agent Builders Software](https://www.g2.com/categories/ai-agent-builders), [AI Customer Support Agents Software](https://www.g2.com/categories/ai-customer-support-agents)



---
## Reviewer Demographics

### By Company Size

| Segment | Retell AI | Synthflow | 
|---|---|---|
| **Small-Business** | 85.4% | 92.8% | 
| **Mid-Market** | 14.6% | 6.8% | 
| **Enterprise** | 0% | 0.4% | 

### By Industry

#### Retell AI

- **Information Technology and Services:** 9.0%
- **Computer Software:** 8.7%
- **Consulting:** 7.4%
- **Marketing and Advertising:** 6.8%
- **Real Estate:** 6.0%
- **Consumer Services:** 4.4%
- **Health, Wellness and Fitness:** 3.8%
- **Automotive:** 3.8%
- **Hospital & Health Care:** 3.3%
- **Telecommunications:** 2.6%
- **Other:** 44.1%

#### Synthflow

- **Marketing and Advertising:** 17.4%
- **Information Technology and Services:** 7.2%
- **Real Estate:** 6.9%
- **Computer Software:** 6.5%
- **Consulting:** 6.4%
- **Accounting:** 4.0%
- **Consumer Services:** 3.4%
- **Construction:** 3.0%
- **Automotive:** 2.4%
- **Health, Wellness and Fitness:** 2.2%
- **Other:** 40.5%

---
## Alternatives

### Alternatives to Retell AI

- [ElevenLabs](https://www.g2.com/products/elevenlabsio/reviews) — 4.5/5 stars (1211 reviews)
- [Murf.ai](https://www.g2.com/products/murf-ai/reviews) — 4.7/5 stars (1411 reviews)
- [Fin](https://www.g2.com/products/fin/reviews) — 4.5/5 stars (3911 reviews)
- [JustCall](https://www.g2.com/products/saas-labs-justcall/reviews) — 4.3/5 stars (2394 reviews)
- [ClickUp](https://www.g2.com/products/clickup/reviews) — 4.6/5 stars (14222 reviews)
- [Jotform AI Agents](https://www.g2.com/products/jotform-ai-agents/reviews) — 4.5/5 stars (794 reviews)
- [ServiceNow AI Agents](https://www.g2.com/products/servicenow-ai-agents/reviews) — 4.3/5 stars (490 reviews)
- [Salesforce Agentforce](https://www.g2.com/products/salesforce-agentforce/reviews) — 4.3/5 stars (1256 reviews)
- [Kore.AI](https://www.g2.com/products/kore-ai/reviews) — 4.6/5 stars (505 reviews)
- [Podium](https://www.g2.com/products/podium/reviews) — 4.5/5 stars (2109 reviews)

### Alternatives to Synthflow

- [ElevenLabs](https://www.g2.com/products/elevenlabsio/reviews) — 4.5/5 stars (1211 reviews)
- [JustCall](https://www.g2.com/products/saas-labs-justcall/reviews) — 4.3/5 stars (2394 reviews)
- [Kore.AI](https://www.g2.com/products/kore-ai/reviews) — 4.6/5 stars (505 reviews)
- [Fin](https://www.g2.com/products/fin/reviews) — 4.5/5 stars (3911 reviews)
- [Genesys Cloud CX](https://www.g2.com/products/genesys-cloud-cx/reviews) — 4.4/5 stars (1571 reviews)
- [Asana](https://www.g2.com/products/asana/reviews) — 4.4/5 stars (13951 reviews)
- [Tidio](https://www.g2.com/products/tidio/reviews) — 4.6/5 stars (1962 reviews)
- [Podium](https://www.g2.com/products/podium/reviews) — 4.5/5 stars (2109 reviews)
- [Qualified](https://www.g2.com/products/qualified/reviews) — 4.9/5 stars (1556 reviews)
- [ClickUp](https://www.g2.com/products/clickup/reviews) — 4.6/5 stars (14222 reviews)

---
## Top Discussions

### Retell AI

- Title: [Is Retell AI worth it for CEOs and founders running business operations?](https://www.g2.com/discussions/is-retell-ai-worth-it-for-ceos-and-founders-running-business-operations) — 1 comment, 1 upvote
  > **Top comment:** "<p>Honestly for a founder who wants to automate the phone and messaging side of ops, Retell AI looks like a strong bet, it's rated 4.8 on G2 with a big..."

### Synthflow

No discussions available for this product.

---
**Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/retell-ai-vs-synthflow)