Updated
Updated · TechCrunch · Oct 24
Block Releases Dessa Voice Model on 1 Nvidia GPU as It Pushes More Human AI
Updated
Updated · TechCrunch · Oct 24

Block Releases Dessa Voice Model on 1 Nvidia GPU as It Pushes More Human AI

3 articles · Updated · TechCrunch · Oct 24

Summary

  • Block said Dessa can run locally on a consumer machine such as a MacBook M4 Max, with the voice model trained on human speech using a single Nvidia GPU.
  • The company argues that avoiding a text-first pipeline preserves emotional cues that current voice AI often loses, letting Dessa speak with laughs, pauses, cries and other more human-sounding expressions.
  • Dessa is full-duplex—able to listen and talk at the same time—and Block showed demos with different voices, cadences and moods, including a tired-sounding bot and an emotional exchange.
  • Block has not opened public access and is instead inviting safety researchers to probe whether a more lifelike voice agent could mislead people, a risk with obvious relevance for finance and customer-service use cases.

Insights

How does a textless AI like Block's Dessa verify factual accuracy when learning everything purely from raw human audio?
If Dessa bypasses text to preserve human emotion, does it become an un-auditable black box for AI safety researchers?
Can an AI model trained solely on human speech truly understand language without the visual or textual context humans rely on?