How do their growth rates compare?

Retell AI has a month-over-month growth rate of 0%; telli has -10.6%.

How does pricing compare?

Retell AI: Free Trial, Contact for Pricing. Retell AI offers a free trial and usage-based plans, with custom enterprise pricing available through a sales conversation. Public pages direct teams to book a demo for volume pricing and implementation support. telli: Contact for Pricing. telli does not publish list prices; it offers a free trial and demo booking, then quotes custom plans based on call volume, languages and integration needs.

What are alternatives to Retell AI and telli?

Other tools in related categories include Dialpad, JustCall, PolyAI, CallHippo, [24]7.ai.

Retell AI vs telli — Traffic (0 vs 30.99K), Pricing & Verdict

Open AI Tools

Retell AI vs telli — Traffic (0 vs 30.99K), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Retell AI	telli
Official Domain	re-tell.ai	telli.com
Pricing Model	Free Trial, Contact for Pricing	Contact for Pricing
Monthly Visits	0 (0)	30.99K (30,992)
MoM Traffic Delta	0 (0%)	-3.67K (-10.6%)
Primary Market & Share	🌐 Global (—)	🇩🇪 Germany (74.4%)
Direct Visits / mo	0	9.08K
User Rating	4.6	4.4
Supported Platforms	Website	Website

Retell AI

Build, deploy, and monitor human-sounding AI voice agents for phone calls

Drag-and-drop agent builder

Design multi-step conversations visually, adding functions, integrations, call transfers, DTMF, SMS, and custom logic without heavy engineering.

Outbound campaigns at scale

Upload audiences, schedule calling campaigns, control pacing and retries, and let AI agents dial and handle voicemail automatically.

Live monitoring and human handoff

Listen to AI calls in real time and let human agents step in instantly, with agentic briefings before the transfer completes.

Post-call QA and custom analytics

QA up to 100% of conversations, build analytics from any post-call metric, and compare agent versions with A/B testing.

Strengths & Pros

+Human-quality, low-latency voice with a strong turn-taking model
+No-code flow design that lets internal teams iterate without vendor help
+Broad compliance coverage (HIPAA, SOC 2 Type II, GDPR, ISO 27001) plus SSO and on-prem options
+Strong observability: live monitoring, call takeovers, and full-call QA