Jelliu vs Retell AI

What Retell is great at

Retell gives developers a clean, reliable API for building and deploying voice agents, with good call quality and tooling for managing conversation flows in code. If your team is integrating voice into an existing product or building something highly custom, that programmability is exactly what you want.

As with any developer API, the surrounding operational layer — campaigns, contact management, CRM, dashboards — is something you build and maintain yourself.

What Jelliu does differently

Jelliu hands a business team the whole operating system instead of a building block. Create an agent in a wizard, connect channels and your CRM, import contacts, and launch — outbound campaigns, inbound support, scheduling, or collections — all from one dashboard, in multiple languages.

Every conversation is scored in real time, so operators see conversion and sentiment as campaigns run, not weeks later in a report they had to build.

When to choose which

• Choose Retell if developers are embedding voice agents into your own application or stack.
• Choose Jelliu if a non-technical team needs to launch and run agents across voice and messaging.
• Choose Jelliu if you want campaigns, CRM, and analytics included rather than self-assembled.