As of: 2026-10-25 23:49 CET.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/
Canonical page: https://postcutoff.com/p/x-blocks-2113677471417819386/

# “Meet Dessa, our speech model trained from scratch on human conversation.”

Block (@blocks), X, 2026-10-23.
Source: https://x.com/blocks/status/2113677471417819386

## Archived text

> Meet Dessa, our speech model trained from scratch on human conversation.  
> 
> Hear it for yourself: https://block.xyz/dessa

Archived 2026-10-24 via fxtwitter (unofficial).
Counts: 296,743 views, 3,684 likes, 295 reposts, 140 replies (at fetch time)
Media: https://video.twimg.com/amplify_video/2113676040492969984/vid/avc1/1920x1080/9RO8YB2ts5oewZUN.mp4?tag=29

## Cited in

- 2026-10-23: [Block unveils Dessa, a full-duplex voice model trained from scratch only on recorded human conversation, with no text and no pretrained model](https://postcutoff.com/e/2026-10-23-block-dessa-speech-only-full-duplex-model/)