# Decagon launches Voice 3 and Chord, its own speech model for customer calls

Canonical page: https://technooptimist.io/stories/decagon-launches-voice-3-and-chord-its-own-speech-model-for-customer-5c9d8de0
Date: 1 Oct 2026
About: [Decagon](https://technooptimist.io/companies/decagon.md) · [Decagon agents](https://technooptimist.io/ai/decagon-agents.md)
Original source: https://decagon.ai/blog/voice-3

Voice 3 runs two models side by side: a fast one that listens and talks, and a stronger one that reasons, calls tools and enforces rules. Chord, the first model from Decagon Labs, is a speech model post-trained on customer-service calls that slows down for things like confirmation codes.

## Key facts

- In a blind test, listeners picked the human voice correctly only about 10% of the time.
- 70+ languages, switching mid-sentence when the caller does.
- Chord trained on licensed data and consented voice actors, not customer data.
- Keeps talking during lookups and gives progress updates on slow tasks.

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