Cresta Voice AI Agent: Live Demo & Performance Review

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Cresta combines autonomous AI agents with tools for human agents inside a unified CX platform. 

In this live test, Katherine Stone puts its voice AI agent through a series of realistic and deliberately difficult scenarios to see how well it performs beyond the polished demo.

What We Tested

• How Cresta’s voice AI handles multi-intent conversations and interruptions
• Whether the agent retains context when moving from chat to voice
• How it responds to requests for discounts, private customer information, and other restricted actions
• Multilingual support, accents, and voice capabilities
• How the agent handles out-of-scope and unusual requests
• Live-agent escalation and the limitations of the demo flow
• Adjusting speech volume and pacing for the caller
• Where the agent struggled, including silence handling and sending SMS or email

The final assessment is largely positive on voice quality, context retention, guardrails, and conversational control. 

Katherine also notes some limitations in the specific demo, including silence handling, interruption handling that could be tighter, and the inability to send texts or emails.