Retell AI vs Thoughtly
An independent, review-free comparison compiled by the SaaSTracker editorial team. Both products are profiled in full, and neither can pay for placement here.
The short answer
Editorial assessmentThoughtly compared with Retell AI
Both offer flow-based agent building with inbound and outbound calling to a similar audience. Retell has broader developer adoption and more provider-level configuration; Thoughtly emphasizes visual building and conversation analytics including A/B testing. Teams that will iterate on scripts systematically may prefer Thoughtly; teams wanting more technical control usually prefer Retell.
Choose Retell AI if
Product teams and technically capable agencies deploying voice agents in production for booking, qualification, support triage, and outbound campaigns, who want flow-based control without building orchestration themselves.
Choose Thoughtly if
Sales and support teams running both inbound answering and outbound calling who want conversation logic they can see and results they can measure, plus agencies deploying agents across clients.
Side by side
13 attributes| Attribute | Retell AI | Thoughtly |
|---|---|---|
| Category | Voice AI | Voice AI |
| Starting price | From roughly $0.07 per minute combined, with free credits to start (free trial) | From roughly $50 per month with included minutes, plus per-minute usage beyond (free trial) |
| Pricing model | Usage-based per minute with components broken out, voice, language model, transcription, and telephony, so teams can trade quality against cost. Volume discounts and enterprise arrangements available. | Subscription plans with included call minutes and per-minute overage, scaling by volume, agent count, and features. Agency and enterprise arrangements available. |
| Free plan | No | No |
| Free trial | Free testing credits on signup | Free trial with test minutes |
| Best for | Product teams and technically capable agencies deploying voice agents in production for booking, qualification, support triage, and outbound campaigns, who want flow-based control without building orchestration themselves. | Sales and support teams running both inbound answering and outbound calling who want conversation logic they can see and results they can measure, plus agencies deploying agents across clients. |
| Setup time | A working agent in a day. Production readiness takes weeks, dominated by flow design, testing against realistic audio, and defining escalation behavior. | A working agent in a day using the visual builder. Production readiness takes one to three weeks including flow refinement, integration testing, and escalation design. |
| Learning curve | Moderate. The flow builder is approachable, but designing conversations that hold up when callers say unexpected things requires iteration and listening to failures rather than reading documentation. | Low to moderate. The canvas is approachable, and the real skill is designing conversations that handle unexpected responses gracefully, which improves only by reviewing real calls. |
| Platforms | REST API and SDKs, Web dashboard with flow builder, Telephony integration, Web calling | Web application with visual builder, Telephony integration, REST API and webhooks |
| Compliance | GDPR, CCPA, SOC 2, HIPAA support on qualifying arrangements, TCPA considerations for outbound | GDPR, CCPA, SOC 2, TCPA considerations for outbound calling |
| Founded | 2023 | 2023 |
| Headquarters | San Francisco, California, United States | New York, United States |
| Ownership | Private, venture-backed | Private, venture-backed |
Strengths and limitations
Retell AI
Strengths
- Flow builder gives structured control without requiring everything to be written in code.
- Strong focus on latency and interruption handling, which determine whether calls feel acceptable.
- Production tooling included: batch calling, voicemail detection, testing, and success evaluation.
- Function calling lets agents complete tasks rather than only gather information.
Limitations
- Still requires technical capability; it is not a no-code product despite the visual builder.
- Agent quality depends heavily on flow and prompt design, which is genuine work.
- Telephony and provider costs stack on top of platform fees, complicating budgeting.
- Automated outbound calling faces varying legal restrictions by jurisdiction.
Thoughtly
Strengths
- Visual flow builder makes conversation logic legible and maintainable by non-engineers.
- A/B testing of conversation variants is rare in this category and genuinely useful.
- Outcome classification turns call volume into a performance metric.
- Covers both inbound answering and outbound campaigns in one platform.
Limitations
- Less raw flexibility than developer-first API platforms.
- Outbound calling faces significant legal restrictions in many jurisdictions.
- Included-minute plans with overage make heavy usage harder to forecast.
- Smaller vendor with less ecosystem presence than the largest voice platforms.
Pricing compared
Retell AI
Usage-based per minute with components broken out, voice, language model, transcription, and telephony, so teams can trade quality against cost. Volume discounts and enterprise arrangements available.
- Pay as you goFrom about $0.07
- VolumeReduced per-minute rates
- EnterpriseQuoted
Per-minute economics make the arithmetic against staffed calling straightforward, particularly for out-of-hours coverage where the alternative is missing the call entirely. Retell's specific value is reducing the engineering required to reach production: flow building, testing, batch calling, and post-call analysis are all present rather than being things you build around an API. The real cost remains conversation design and testing, which no platform removes.
Thoughtly
Subscription plans with included call minutes and per-minute overage, scaling by volume, agent count, and features. Agency and enterprise arrangements available.
- StarterFrom about $50
- GrowthFrom about $250
- EnterpriseQuoted
For teams running calling as a repeatable process rather than a one-off automation, the measurement layer is where the value concentrates: knowing which conversation variant books more meetings compounds in a way that raw call automation does not. Teams that will build one agent and leave it alone are paying for optimization they will not use, and a simpler platform serves them better.
Editorial verdict on each
Retell AI
Retell AI has aimed at the gap that matters commercially: between a voice API that requires you to build everything around it and a no-code product that cannot be customized. The flow builder gives structure without demanding that every branch be written in code, and the surrounding tooling, batch calling, voicemail detection, simulated testing, success evaluation, is what separates a demo from something you can put in front of customers. Cost is legible and low enough that the arithmetic against staffed calling is easy. What remains hard is the part no vendor solves: designing conversations that survive real callers, deciding when to escalate, and navigating a legal environment around automated calling that is still moving. Approached with that discipline, it is one of the strongest choices in the category.
Read the full Retell AI profileThoughtly
Thoughtly's most interesting decision is treating a phone conversation as something to optimize rather than merely automate. A visual canvas makes flow logic legible to the people who understand the sales process, and A/B testing plus outcome classification lets script decisions be settled by evidence instead of seniority, which is rare in this category and genuinely valuable to a team calling at volume. It gives up some technical flexibility against developer platforms and some packaging convenience against agency-focused ones. The strongest case for it is a team that will keep changing what the agent says and wants to know whether each change helped, and the weakest is a business that wants one agent configured once and forgotten.
Read the full Thoughtly profileRetell AI profile last reviewed 2026-08-22; Thoughtly last reviewed 2026-08-22. Pricing is compiled from public sources and can change without notice. See our methodology.