# Cartesia Projects at AI Tinkerers

> Canonical HTML: https://aitinkerers.org/technologies/cartesia
> Markdown URL: https://aitinkerers.org/technologies/cartesia.md
> Technology record last updated: 2026-09-18T15:13:45Z
> Generated: 2026-09-20T17:36:07Z

Cartesia develops Sonic: a generative AI model delivering high-fidelity text-to-speech with sub-100ms latency for real-time voice applications.

Cartesia specializes in real-time multimodal intelligence, led by its flagship Sonic model. The system achieves industry-leading speeds (under 100 milliseconds of latency) to provide natural, expressive voice synthesis across dozens of languages. Developers use the Cartesia API to power interactive agents, gaming NPCs, and accessibility tools with lifelike audio quality. By prioritizing performance and scale, the platform eliminates the lag found in traditional speech synthesis.

- Official technology site: https://cartesia.ai
- Public AI Tinkerers demos and talks: 1
- Result page: 1 of 1

## Recent Public Talks and Demos

### [Realtime STT Performance for elder Czech voices](https://prague.aitinkerers.org/talks/rsvp_Vre_QFjp7Gw)

Results of analysis of 5 common realtime STT providers (Cartesia, Deepgram, Eleven Labs, Google, Speechmatics) on cca. 1 hour of 20 different elderly czech voices (Paměť národa). It is more results, the code itself is fairly trivial...

- Event context: ❄️ AI Tinkerers Prague – February Meetup — 2026-02-19 — Prague
- Public talk page: https://prague.aitinkerers.org/talks/rsvp_Vre_QFjp7Gw

## Related Technologies

- [Cloud Speech-to-Text API](https://aitinkerers.org/technologies/cloud-speech-to-text-api) ([Markdown](https://aitinkerers.org/technologies/cloud-speech-to-text-api.md)) — 3 public demos
- [Deepgram](https://aitinkerers.org/technologies/deepgram) ([Markdown](https://aitinkerers.org/technologies/deepgram.md)) — 11 public demos
- [ElevenLabs](https://aitinkerers.org/technologies/elevenlabs) ([Markdown](https://aitinkerers.org/technologies/elevenlabs.md)) — 42 public demos
- [Speechmatics](https://aitinkerers.org/technologies/speechmatics) ([Markdown](https://aitinkerers.org/technologies/speechmatics.md)) — 1 public demo