Block unveiled the artificial intelligence model Dessa, trained from scratch only on human conversations. The company also shared examples of the model’s dialogues with people.

In one published conversation, the interaction largely appears natural, but at the start Dessa incorrectly treated the interlocutor as a person named Ronaldo for an unknown reason in the material.

The significance of this launch remains limited: only metadata-based description of an independent material is available, not the full text of the publication or confirmation from Block itself. Therefore it is unclear how the model operates beyond the shown conversations and how it differs from other conversational systems.