Vapi charges per minute for hosting plus provider costs. Omnia runs on your infrastructure with no per-minute meter: free while you build, the core free in production, and an enterprise licence per environment per year from £30,000.

Can Omnia use the same voice providers?

Omnia treats speech-to-text and text-to-speech as provider roles, and runs realtime duplex models natively.

omnia vs vapi

Vapi gets a voice agent onto a phone number. Omnia tests what it does when the caller cuts in.

Omnia runs the voice stack in your cluster and tests the moment a caller cuts in, on every release. Vapi’s testing guide leaves silences and interruptions to a person, and its interruption detection runs only on Vapi’s infrastructure.

A caller says “no, wait” halfway through the agent reading out a balance.

on omnia

That interruption ran a hundred times before release, landing early, late and on top of the number itself. The version that kept reading after being cut off stopped at the gate, and its recording is there to play back. docs

on vapi

Vapi’s testing guide says to check by hand the silences and interruptions that simulations can’t reliably reproduce, and to listen to a sample of recordings. their docs

Interruptions tested automatically

Interruption and silence scenarios run against every version before it can be promoted. Each call is recorded, so you listen to the ones that failed. docs

Vapi: Voice Simulations play the caller; silences and interruptions are tested by hand. source

The voice stack runs in your cluster

Duplex voice and interruption handling run in Omnia’s runtime, inside your boundary, with the provider and model you choose. docs

Vapi: On-premise deployment isn’t supported, and endpointing and interruption detection run exclusively on Vapi infrastructure. source

A release that finds the problem on a slice of calls

Callers stay on the version they started with while the new one takes more of the traffic. If its metrics drop, Omnia moves the traffic back. docs enterprise

Vapi: Every publish is a version snapshot you can roll back to. Staged rollout and automatic rollback aren’t documented. source

At a glance

Topic	Omnia	Vapi, per its docs
Versions and rollback	yes Automatic, on the metrics. docs	partly Version snapshots, manual rollback. source
Simulated callers	yes Multi-turn, against real tools. docs	documented An AI tester plays the caller. source
Interruption and silence tests	yes Automated and recorded. docs	partly Manual. source
Adversarial callers	yes Yes. docs	not documented Not documented. source
MCP tool filtering	yes A CEL rule on every call. docs enterprise	not documented Imports every tool a server exposes, with no per-tool filter. source
PII redaction	yes Sessions and memory, before storage. docs enterprise	not documented Not documented. source
Runs in your infrastructure	yes Yes. docs	not documented Not supported. source

Common questions

How is each priced?: Vapi charges per minute for hosting plus provider costs. Omnia runs on your infrastructure with no per-minute meter: free while you build, the core free in production, and an enterprise licencelicense per environment per year from £30,000.
Can Omnia use the same voice providers?: Omnia treats speech-to-text and text-to-speech as provider roles, and runs realtime duplex models natively.

Put your own agent through the gate.

Install Omnia in your cluster and run it free while you build.

Vapi claims are from Vapi’s published documentation, checked 22 October 2026. Spot something out of date? Tell us.

Install it in your cluster Or walk through it with us →