Block unveils Dessa, a voice AI trained only on human conversation

Jack Dorsey's company Block says Dessa is a true speech-to-speech model, trained "from scratch on nothing but human conversation". Its demo chats are natural at times and awkward at others.

Why Block built it

• Curiosity
• Better understanding between humans and AI
• Safety

The team gives three reasons for building it: curiosity, better understanding between humans and AI, and safety.

Block says Dessa can run locally on a MacBook Pro M4 Max "or better".