Skip to content
NewA calmer, faster ZeroHour

Block unveils Dessa, a speech-only conversational AI model

Original title: Jack Dorsey’s Block made an AI model that talks to you like an awkward new friend

The Verge · AIby Jay Peters ()2 min read
Part of a story covered by 3 sourcesBlock unveils Dessa, a speech-only voice model for safety testersMerged summary & timeline
AI summary · x-ai/grok-4.7Summaries by Vani AI

Block says it runs locally on a MacBook Pro M4 Max or better and will give safety researchers early access.

Jack Dorsey's Block announced Dessa, which the team says was trained from scratch only on human conversation and operates speech-to-speech. Block published sample chats and voice clips, including awkward exchanges and a comparison with OpenAI's GPT-Live-1. The stated reasons are curiosity, better human-AI understanding, and detecting emotion in speech. Early access is limited to a small group of AI safety researchers.

Unconfirmed: Training and capability claims come from Block; the article includes no independent evaluation.

Key facts
  • The team says everything Dessa knows came from human speech, not written text.
  • One published chat shows the model initially calling the speaker Ronaldo.
  • A small group of AI safety researchers will get early access.
Explain this AI news with Vani AIWhat was announced, what is new and why it matters, in a new chat

From the original article

2 min read at theverge.com

Jack Dorsey's Block announced an AI model called Dessa that's trained "from scratch on nothing but human conversation," and to show off the model, Block shared chats it has had with humans that can occasionally be a little awkward and uncanny. Take this one, for example, shared by Dessa lead Ragavan Thurairatnam.

The Verge · AI

By Jay Peters · theverge.com

Read the full article at The Verge · AI

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.