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How Daily uses Cartesia

500ms

“Daily Bots delivers voice-to-voice latencies – including transport over the network – as fast as 500ms.”

As published on cartesia.ai, September 2024. Captured by usedby on Oct 8, 2026.

What happened

Daily uses Cartesia's Sonic text-to-speech model as the primary voice provider for Daily Bots, its open source cloud for building voice AI agents. Developers use it for voice interactions in applications such as customer support, appointment scheduling, and virtual personas.

Summary written by usedby from the source page, in English. The figures are those of Cartesia and Daily, not ours.

  • 180 ms“Cartesia consistently achieves a time-to-first-byte for voice inference of 180 ms or better, including network overhead.”
  • 13 languages“Daily facilitates natural and responsive voice interactions operating in 13 languages with support for customized voices.”

Ultra-low Low Latency: Daily Bots delivers voice-to-voice latencies – including transport over the network – as fast as 500ms. This is human conversational speed. The speed of Cartesia Sonic is part of what makes this possible.

From the page. cartesia.ai, captured Oct 8, 2026

Cartesia Sonic is the best voice model today for real-time multimodal use cases.

Kwindla Hultman Kramer, Co-Founder and CEO, Daily, Daily. Source, captured Oct 8, 2026

What the story claims, and what we checked

We compared the story with its live page on Oct 8, 2026.

  • The figure: 500msCheckedPrinted word for word on the page, near the name of Daily.
  • The passage quoted aboveCheckedCopied word for word from the page, near the name of Daily.
  • The publication dateCheckedRead from the page’s own metadata, never guessed.
  • Daily uses CartesiaCheckedConfirmed line. Latest check across sources: Oct 8, 2026.
  • The result itselfNot checkedWe quote it; we did not measure it.

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