End-user perceived latency metrics in shareable AI assistant demo links

Shareable demo links for AI assistant widgets now display end-user perceived latency for each conversational turn. This exposes the full round-trip delay a user experiences, instead of platform-side timing that excludes last-mile effects.

What’s new

• Per-turn latency display: Shows latency after every user-agent exchange in shareable demo links.
• Client-side measurement: Latency is captured on the end user’s device, not Telnyx backend infrastructure.
• Full round-trip timing: Measures from when the user stops speaking to when agent audio begins.
• End-to-end scope: Includes turn detection, STT, LLM, TTS, tool calls, orchestration, and network transmission.
• Voice-relevant metric: Reflects the mouth-to-ear turn gap used to evaluate voice agent responsiveness.

Why it matters

• Reflects real user experience: Includes last-mile network latency that platform metrics and recordings miss.
• Prevents misleading comparisons: Backend or recording-based metrics systematically underreport perceived delay.
• Improves agent tuning: Helps isolate whether latency comes from models, tools, or network conditions.

• Aligns with voice standards: Uses the most meaningful latency metric for conversational voice agents.

  Example use cases

• Sharing accurate latency data during customer demos.
• Comparing perceived responsiveness across regions or devices.
• Explaining why live calls feel slower than platform recordings.

Getting started

1. Log in to the Mission Control Portal
2. Navigate to your AI assistant widget.
3. Open or generate a publicly shareable demo link.
4. Run a voice conversation and review per-turn latency shown in the demo UI.

Learn more by exploring AI assistant widgets in the Mission Control Portalor by contacting your Telnyx team.