Name the boxes
Write STT, model, and TTS on three cards.
Write 'one speech-to-speech model' on a fourth card and set it beside the row, not inside it.
Point at the card your sentence is about.
If you cannot point, you are mixing the two shapes.
Sources and go deeper
- LiveKit Agents, Pipeline types vendor last checked 2026-10
- Pipecat open source framework vendor last checked 2026-10
- Voice Overview, docs.x.ai vendor The page calls them SpaceXSI Voice APIs, powered by Grok, and separates Speech to Speech, Text to Speech, and Speech to Text. last checked 2026-10