Test the Realtime Voice Agents You Build on LiveKit Agents
AI evaluators join your LiveKit sessions like real users, scoring the STT-LLM-TTS pipeline, latency, turn detection, and function calls.
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Test Every Layer of Your LiveKit Agent. One Platform.
AI-native evaluators that join realtime sessions to plan, run, and score the voice pipeline, turn detection, and function calling across 30+ metrics.
STT to LLM to TTS Pipeline Testing
Exercise the full STT-LLM-TTS pipeline your LiveKit agent runs on. TestMu AI joins the session over its voice channel, speaks like a real user, and scores transcription, reasoning, and speech output on every turn.
Transcription Accuracy
Grade the speech-to-text stage against 50+ accents and 15 background-noise presets before a misheard word ever reaches the LLM.
End-to-End Latency
Measure round-trip time from user speech to agent reply so a slow pipeline is caught before users feel the lag.
Speech Output Quality
Score text-to-speech clarity and response quality, and flag replies that hallucinate or drift off the prompt.
From Pipeline to Production
Every Stage of Your LiveKit Agent, Covered
Simulate realtime sessions before launch, then batch-analyze production recordings with the same latency and quality metrics.
Quality Across Every Turn
Measure what matters on each turn, from transcription accuracy and end-to-end latency to bias and hallucination.
Experience and Operational Signals
Track the metrics that decide success, from CSAT and sentiment to interruption recovery and escalation trends.
Confidence-Weighted Verdicts
Scores are weighted by evaluation volume, giving you a reliable read on whether your LiveKit agent is ready to ship.
Inside LiveKit Agents Testing On TestMu AI
Pipeline and latency, turn detection, scale and CI, plus production session analysis, all scored on real realtime voice sessions.
PIPELINE & LATENCY
Test the STT-LLM-TTS Pipeline End to End
Your LiveKit agent chains speech-to-text, an LLM, and text-to-speech over WebRTC. TestMu AI joins and scores every stage before launch.
Try for free- End-to-end latency from user speech to agent reply
- Speech-to-text accuracy across accents and noise
- Response quality and text-to-speech clarity per turn
TURN DETECTION
Handle Interruptions and Turn-Taking
Realtime voice lives or dies on turn detection. TestMu AI interrupts, pauses, and talks over the agent to verify endpointing and barge-in.
Try for free- Barge-in and interruption recovery on every turn
- Endpointing checks for fast and hesitant speakers
- Hallucination, bias, and guardrail scoring per turn
SCALE & CI
Hold Up Under Load and Network Jitter
Simulate concurrent realtime sessions with network jitter, schedule cron-driven runs, and wire regression suites into CI, all on HyperExecute.
Try for free- Concurrent session simulation with network jitter
- Scheduled and cron-driven regression runs
- CI/CD gating on every release via HyperExecute
PRODUCTION ANALYSIS
Catch Regressions Before Your Users Do
Upload production recordings and batch-analyze them so a drop in transcription accuracy, latency, or CSAT never slips past you.
Start Testing LiveKit- Batch-analyze real production session recordings
- Track latency and quality trends across releases
- Flag drops in transcription accuracy, CSAT, or intent
Built for Every Layer of LiveKit Agents Testing
Project & Environment Management
Create agents, manage test environments, and scope variables for each LiveKit deployment with bulk creation support.
Test Profiles & Personas
Drive realtime sessions with reusable test data and 10 personas across 50+ accents so you can simulate real callers.
Validation Criteria
Define custom, evidence-based pass/fail rules per scenario with High, Medium, or Low confidence tracking.
Security & Infrastructure
Execute on HyperExecute with an optional secure tunnel for LiveKit agents behind a private network.
Scheduling Engine
Automate runs using preset frequencies or full custom cron expressions with IANA timezone support.
Observability & Reporting
Monitor runs with unified dashboards, exportable reports, and real-time latency and pass/fail trends.
Success Stories of TestMu AI (Formerly LambdaTest)
50%
reduction in test execution time
“HyperExecute is a highly reliable test execution platform and has excellent customer support.”
Sagar Uday Kumar
Sr. Engineering Manager
Some Love from our Customers
As Best Egg expanded its product offerings and entered new markets, we knew our old testing infrastructure couldn’t keep up.
With support from Tenny Agustin, our Engineering Operations Lead, we modernized our approach with
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