Retell AIBuilds AI voice agents that handle inbound and outbound phone calls with low latency.
- 64Fair
Ease of use
- —Not rated
Output quality
- 57Weak spot
Value
- —Not rated
Privacy
- 82Strong
Features
- 78Strong
Integrations
- 63Fair
Platforms
- —Not rated
Momentum
At a glance
- StrengthHandles full phone call automation with low latency
- StrengthIncludes telephony, so no separate provider is required
- WatchUsage-based pricing makes costs harder to predict at scale
- WatchRequires developer involvement to set up and tune agents
Every facetof Retell AI.
Eight facets, one tool. Turn it around and see where it cracks.
78 /100
Integrations
Documented integrations, and whether there is an API.
About
Retell AI is a platform for building and deploying AI voice agents that carry on natural phone conversations. It provides low-latency speech recognition and synthesis, a flow-based agent builder, and telephony infrastructure for inbound and outbound calling. Retell AI is aimed at developers and operations teams who want to automate phone support, appointment scheduling, or lead qualification without building voice pipelines from scratch. Usage is billed per minute of call time.
Features
- Low-latency voice AI with natural interruption handling
- Inbound and outbound call support
- Built-in telephony (no separate provider needed)
- Flow and LLM-based agent configuration
- Call analytics and transcripts
- API for programmatic agent creation
Best for
- Automating inbound customer support phone calls
- Running outbound AI calling for lead qualification or appointment reminders
- Developers building voice AI without managing telephony infrastructure
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Reviews
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FAQ
- What is Retell AI?
- Retell AI is a platform for building and deploying AI voice agents that carry on natural phone conversations. It provides low-latency speech recognition and synthesis, a flow-based agent builder, and telephony infrastructure for inbound and outbound calling. Retell AI is aimed at developers and operations teams who want to automate phone support, appointment scheduling, or lead qualification without building voice pipelines from scratch. Usage is billed per minute of call time.
- Is Retell AI free?
- Retell AI is a paid product with a free trial. Check the official site for current plans.
- What can I use Retell AI for?
- Retell AI is listed for customer support.
How it is scored
Every facet comes from what this listing records, by the same rule for every tool. A facet the listing has nothing to go on is shown as not rated, and the overall score needs at least 4 rated facets.
Ease of use
From the skill level the tool is built for.
Output quality
Average member rating, once three or more reviews are in.
Value
Free plan, trial and the cheapest paid plan's price.
Privacy
Self-hosting, on-device processing and stated data use.
Features
How many distinct capabilities the listing records.
Integrations
Documented integrations, and whether there is an API.
Platforms
Web, desktop, mobile, browser extension, API.
Momentum
Editorial popularity plus member upvotes.