Compare Retell AI and Synthflow 
At a Glance
Market Segments
Small-Business (89.3% of reviews)
Small-Business (92.9% of reviews)
Entry-Level Pricing
$0.07 1 Minute
Pay As You Go Per Month
Retell AI
Star Rating
(1,648)4.8 out of 5
Market Segments
Small-Business (89.3% of reviews)
Pros & Cons
Entry-Level Pricing
$0.07 1 Minute
Free Trial is available
Browse all 2 pricing plansSynthflow
Star Rating
(999)4.5 out of 5
Market Segments
Small-Business (92.9% of reviews)
Pros & Cons
Entry-Level Pricing
Pay As You Go Per Month
Browse all 2 pricing plansSummary
AI Generated Summary
AI-generated. Powered by real user reviews.
- G2 reviewers report that Retell AI excels in user-friendliness, with many users highlighting its ease of use and quick setup process. One user mentioned, "It is easy to use, and really enough for any usage about agents," which reflects the general sentiment of a smooth onboarding experience.
- Users say that Synthflow offers a robust integration capability, making it a strong choice for those looking to connect with other platforms. A reviewer noted, "AI powered, can integrate with other platforms," indicating its versatility in a multi-software environment.
- Reviewers mention that Retell AI has a higher satisfaction score overall, which is supported by its strong performance in areas like customer interaction automation and ease of administration. Users appreciate features like "Automated appointment booked synced to cal," showcasing its practical applications in daily tasks.
- According to verified reviews, Synthflow is praised for its model-building simplicity, with users stating, "It's not that complicated to create a model I want, and it's working." This suggests that it may be more suitable for users who prioritize customization and flexibility in their workflows.
- G2 reviewers report that while Retell AI has a slight edge in support quality, Synthflow still provides adequate assistance, though some users feel it could improve. One user mentioned, "Everything, I really love the way I can build software in a nice simple way," indicating satisfaction but also a desire for enhanced support features.
- Users say that Retell AI's focus on small businesses is a significant advantage, as evidenced by its high percentage of reviews from this segment. This focus allows it to cater specifically to the needs of smaller teams, making it a preferred choice for many in that market.
Pricing
Entry-Level Pricing
Retell AI
Pay as you go
$0.07
1 Minute
$0 to start.
Self-Serve
Start instantly.
- $10 Free credits
- 20 Free concurrent calls
- 10 Free Knowledge Bases
Synthflow
Pay as you go
Pay As You Go
Per Month
Launch instantly, scale when you’re ready. Ideal for builders, pilots, and small-scale deployments. $0 to start, usage-based billing after launch.
- Free to start, then usage-based
- Telephony: Synthflow Twilio/ Bring Your Own
- 5 concurrent calls, then $20/reserved concurrency
Free Trial
Retell AI
Free Trial is available
Synthflow
Free Trial is available
Ratings
Meets Requirements
8.8
52
8.5
936
Ease of Use
8.9
1,612
8.5
971
Ease of Setup
8.7
53
8.1
964
Ease of Admin
9.0
34
8.2
563
Quality of Support
8.2
46
7.8
806
Has the product been a good partner in doing business?
8.9
32
8.2
502
Product Direction (% positive)
9.5
48
9.4
942
Features by Category
Lead Facilitation
7.9
15
Feature Not Available
7.3
15
7.8
271
8.0
15
7.7
262
8.3
15
7.9
260
Organization
7.8
15
7.7
256
8.0
14
7.8
250
8.6
15
8.1
250
Performance Analysis
7.0
15
Feature Not Available
6.9
14
7.8
246
Sales Analysis
6.5
14
Feature Not Available
6.9
14
Feature Not Available
Generative AI
7.3
14
8.2
239
8.7
14
8.1
241
Agentic AI - AI Sales Assistant
7.6
14
8.2
75
7.9
14
8.0
73
8.5
14
8.0
74
6.9
14
8.0
73
8.1
14
8.3
73
7.5
14
8.2
74
8.1
14
8.3
75
Responses
8.4
22
8.1
605
8.6
22
7.9
604
8.3
22
8.2
602
Automation - AI Agents
8.5
19
8.1
553
8.7
19
8.1
561
8.4
20
8.0
555
7.3
18
7.7
533
8.0
18
7.9
530
Platform
8.0
22
8.1
600
8.2
21
8.2
586
8.2
21
8.0
577
Autonomy - AI Agents
8.0
18
8.1
528
8.1
18
8.1
525
8.3
18
8.1
532
8.0
18
8.1
530
Generative AI
6.9
19
8.1
572
8.1
20
8.0
562
Customization - AI Agent Builders
9.7
6
Not enough data
9.2
6
Not enough data
9.2
6
Not enough data
Functionality - AI Agent Builders
9.2
6
Not enough data
8.1
6
Not enough data
9.4
6
Not enough data
7.8
6
Not enough data
Data and Analytics - AI Agent Builders
9.2
6
Not enough data
8.6
6
Not enough data
8.9
6
Not enough data
Integration - AI Agent Builders
9.4
6
Not enough data
8.6
6
Not enough data
8.6
6
Not enough data
8.1
6
Not enough data
Voice Recognition - AI Voice Assistants
8.2
27
8.1
200
Speech Synthesis - AI Voice Assistants
8.3
27
8.1
199
8.1
26
8.0
197
8.4
26
8.1
193
Security and privacy - AI Voice Assistants
8.1
25
7.9
197
Compatibility - AI Voice Assistants
8.3
26
8.1
195
Customer Query Resolution - AI Customer Support Agents
8.5
11
Not enough data
8.6
11
Not enough data
8.2
11
Not enough data
9.1
11
Not enough data
8.8
11
Not enough data
Customer Interaction Automation - AI Customer Support Agents
8.7
10
Not enough data
8.7
10
Not enough data
8.6
11
Not enough data
8.5
11
Not enough data
Automation
8.3
11
Not enough data
8.3
11
Not enough data
7.7
11
Not enough data
Autonomy
8.0
11
Not enough data
8.0
11
Not enough data
8.5
11
Not enough data
8.3
11
Not enough data
Agentic AI - AI Agents
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Categories
Categories
Shared Categories
Retell AI and Synthflow are categorized as AI Voice Assistants, AI Agents For Business Operations, and AI Sales Assistant
Unique Categories
Retell AI is categorized as AI Agent Builders and AI Customer Support Agents
Synthflow has no unique categories
Reviews
Reviewers' Company Size
Retell AI
Small-Business(50 or fewer emp.)
Mid-Market(51-1000 emp.)
Enterprise(> 1000 emp.)
Synthflow
Small-Business(50 or fewer emp.)
Mid-Market(51-1000 emp.)
Enterprise(> 1000 emp.)
Small-Business
(50 or fewer emp.)
Mid-Market
(51-1000 emp.)
Enterprise
(> 1000 emp.)
Reviewers' Industry
Information Technology and Services
8.7%
Computer Software
8.3%
Consulting
7.6%
Marketing and Advertising
7.2%
Real Estate
6.5%
Other
61.6%
Marketing and Advertising
17.4%
Information Technology and Services
7.2%
Real Estate
6.9%
Computer Software
6.4%
Consulting
6.3%
Other
55.6%
Discussions
Retell AI has no discussions with answers
Synthflow has no discussions with answers
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