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Block's AI Dessa Learns From Human Chats
24 Oct
Summary
- Block developed an AI model named Dessa trained on human conversations.
- Dessa is a true speech-to-speech model, running locally on advanced MacBooks.
- The team aims for curiosity, better human-AI understanding, and safety with Dessa.

Jack Dorsey's Block has announced the development of Dessa, a novel AI model trained exclusively on human conversation. This speech-to-speech model is designed to run efficiently on local hardware, including MacBook Pro M4 Max devices and above.
The Dessa team shared examples of conversations to demonstrate the AI's capabilities. These interactions range from discussing films to expressing 'teary gratitude' for a surprise trip to Paris. While largely natural, some exchanges exhibit minor uncanny moments, such as initial name confusions or unexpected tangents.
Block's motivation for creating Dessa stems from three core principles: curiosity, fostering better understanding between humans and artificial intelligence, and ensuring safety. The company plans to provide early access to a select group of AI safety researchers.