Relyable - AI Reliability Testing

Test and monitor AI voice agents 100x faster with automated simulation and live evaluation.

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Updated Jul 2026 · Added Jun 2026

relyable.ai

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What is Relyable?

Relyable is a simulation and monitoring platform for AI voice agents that helps teams test and evaluate agent performance before production. It generates hundreds of realistic test conversations, scores calls against custom rubrics, and provides real-time live monitoring with instant alerts. Designed for AI agencies, startups, and enterprises building voice agents on Vapi, Retell, and ElevenLabs.

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Key Features of Relyable

Automated test case generation from system prompts
200+ persona presets for realistic conversations
Rubric-based call evaluation with custom criteria
Parallel testing of hundreds of conversations
Real-time live call monitoring and alerts
Native integrations with Vapi, Retell, ElevenLabs
Custom metrics including latency, sentiment, customer satisfaction
Alert routing to Slack, Email, PagerDuty, Opsgenie, Linear, Webhooks

Who Should Use Relyable?

Test voice agents before production deployment

Evaluate agent performance against business-specific rubrics

Monitor financial services AI receptionists for compliance

Detect and address performance drift in real-time

Scale voice agent deployment with confidence testing

Optimize home services booking and emergency detection

Qualify and route calls at scale in real estate

Relyable: Pros & Cons

✓Pros

Setup in under 5 minutes with API key integration
Matrix mode for comprehensive scenario coverage
Up to 10,000 parallel simulated calls
Real-time call analysis without manual audits
Customizable evaluation criteria aligned to business goals
Backed by NVIDIA Inception, ElevenLabs Grants, Microsoft for Startups
No daily call listening required with smart alerts

✕Cons

Currently closed to new sign-ups
Limited to three native platform integrations (Vapi, Retell, ElevenLabs)

Frequently Asked Questions about Relyable

Can I test a voice agent built on Vapi, Retell, or ElevenLabs with Relyable?

Relyable has native integrations with Vapi, Retell, and ElevenLabs, so you can connect and test agents built on those platforms through API key integration. Setup takes under five minutes. If your voice agent runs on a different platform, Relyable does not list support for other integrations.

How many simulated calls can I run at once on the CORE plan?

The CORE plan ($500/month) includes 750 simulated calls and supports up to 10,000 parallel simulated calls in matrix mode for comprehensive scenario coverage. The PREMIUM plan ($1,000/month) increases your monthly allowance to 1,900 simulated calls.

Can I set up custom evaluation criteria for my specific business rules?

Yes. Relyable scores calls against custom rubrics and lets you define custom metrics aligned to your business goals, including latency, sentiment, and customer satisfaction. You build the evaluation criteria that matter for your voice agent's use case.

What happens if my voice agent's performance drops after I deploy it?

Relyable provides real-time live call monitoring with instant alerts routed to Slack, Email, PagerDuty, Opsgenie, Linear, or webhooks so you can catch performance drift immediately without manually listening to every call. This is particularly useful for compliance-sensitive industries like financial services.