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Changelog: default AI voice changed to ElevenLabs "Mark" #661

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hey-august merged 1 commit into from
Sep 8, 2026
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Changelog: default AI voice changed to ElevenLabs "Mark" #661

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13 changes: 13 additions & 0 deletions fern/products/platform/changelog/2026-09-05.mdx
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tags: ["ai", "tts", "voice"]
---

## Default AI voice changed to ElevenLabs "Mark"

AI agents that don't specify a voice now speak with ElevenLabs' "Mark", a higher quality voice
included in the regular AI agent price. The default voice can change over time, so applications
that need a specific voice should set one explicitly.

Set a voice in the [AI Agent SDK](/docs/server-sdks/guides/voice-language) or with
[`voice` strings in SWML](/docs/swml/reference/calling/ai/languages#use-voice-strings),
and [browse and audition available voices](/docs/platform/voice/tts).
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