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Audio

Voice Confirmation

Require explicit spoken or multimodal approval before irreversible voice actions like payments, sends, or deletes. Repeat amount, recipient, and action before accepting yes.

Interactive demo

Confirm · Send payment

Send payment

Say yes or no before we charge the card.

Agent will say

Charge $420 to the Acme card and email the receipt?

Overview

How might we design voice confirmation so people can trust and act on AI output?

When to use

  • Essential for voice shopping, voice banking, smart-home automation, and any always-on agent where irreversible actions need an explicit spoken or multimodal confirmation before execution.

When to skip

  • Low-risk read-only queries.
  • Confirm steps so long users disable voice entirely.
  • Actions already protected by physical biometrics alone.

Rules

  • Yes on any utterance after prompt with no detail repeat.

  • Confirm in voice only with no screen echo for purchases.

  • Same brief confirm for 1 dollar and 1000 dollar actions.

  • No cancel phrase documented.

Evidence

ProductImplementation
AlexaVoice PIN and confirm on shopping checkout.
SiriConfirm transfers and sensitive HomeKit actions.
Google AssistantPurchase confirmation on linked payments.
Apple PayRe-auth on device for voice-initiated pay.

FAQ

What must be repeated before confirm?

Action, amount, recipient, and irreversibility in plain language.

Voice confirmation vs voice commands?

Commands trigger actions. Confirmation is a gated second step for risky ones.

Multimodal confirm?

Phone tap or device button plus spoken yes for high value.

Cancel how?

No, cancel, or stop must abort without partial execution.