For AI agents: a documentation index is available at the root level at /llms.txt. Append /llms.txt to any URL for a page-level index, or .md for the markdown version of any page.
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Voice AgentsModels
Pricing
DocumentationAPI ReferenceSelf HostModel CardsClient LibrariesIntegrationsDeveloper ToolsChangelog
Voice AgentsModels
DocumentationAPI ReferenceSelf HostModel CardsClient LibrariesIntegrationsDeveloper ToolsChangelog
    • General
    • Lightning v3.1
    • Pulse STT
    • Hydra
  • General
  • August 10, 2026
  • August 8, 2026
  • August 8, 2026
  • August 6, 2026
  • August 5, 2026
  • August 5, 2026
  • August 4, 2026
  • August 3, 2026
  • July 21, 2026
  • July 18, 2026
  • July 17, 2026
  • July 16, 2026
  • July 16, 2026
  • June 23, 2026
  • June 12, 2026
  • June 3, 2026
  • May 23, 2026
  • May 22, 2026
  • May 22, 2026
  • May 12, 2026
  • May 7, 2026
  • April 22, 2026
  • April 20, 2026
  • Lightning v3.1
  • August 10, 2026
  • July 10, 2026
  • July 3, 2026
  • June 15, 2026
  • June 5, 2026
  • June 1, 2026
  • May 19, 2026
  • May 19, 2026
  • May 15, 2026
  • May 14, 2026
  • May 8, 2026
  • May 2, 2026
  • May 2, 2026
  • Pulse STT
  • July 22, 2026
  • July 22, 2026
  • July 15, 2026
  • July 12, 2026
  • July 10, 2026
  • July 10, 2026
  • June 29, 2026
  • June 16, 2026
  • June 15, 2026
  • May 30, 2026
  • May 30, 2026
  • May 28, 2026
  • May 22, 2026
  • May 15, 2026
  • May 8, 2026
  • May 6, 2026
  • May 6, 2026
  • May 4, 2026
  • May 3, 2026
  • May 1, 2026
  • May 1, 2026
  • May 1, 2026
  • April 30, 2026
  • April 21, 2026
  • April 20, 2026
  • Hydra
  • May 20, 2026
Pricing

General

August 10, 2026
August 10, 2026

Speech to Text: VAD events on the live WebSocket API reference

The Pulse STT live WebSocket now models the acoustic voice-activity events in the API reference: speech_started and speech_ended, emitted alongside transcription messages when the connection sets vad_events=true. See VAD events for the payloads and usage.

The events have been in production; this documents them on the WebSocket reference.

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