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docs: add Cartesia Sonic 3.5 voice model#460

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docs: add Cartesia Sonic 3.5 voice model#460
mintlify[bot] wants to merge 1 commit into
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mintlify/3b299f94

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@mintlify mintlify Bot commented May 26, 2026

Summary

Adds documentation for Cartesia's new Sonic 3.5 TTS model, now selectable for Cartesia voices. Sonic 3.5 inherits all Sonic 3 behavior — 10-emotion set, volume control, and 0.61.5 speed range — with no other configuration changes required.

Changes

  • tools/classes/voice.mdx — list sonic-3.5 in the model_id comment and expand the Sonic 3 parameters note to cover both sonic-3 and sonic-3.5 (speed range, emotion set).
  • voice/add-a-new-voice.mdx — update the Cartesia example to default to sonic-3.5 and list earlier model IDs.
  • tools/classes.mdx — extend the Cartesia model_id row to include sonic-3 and sonic-3.5.
  • releases/notes/26.05.mdx — add a release-note accordion announcing Sonic 3.5.

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mintlify Bot commented May 26, 2026

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