Block introduces Dessa, a voice AI model that can listen while speaking
By Automate Basics, written with AI from TechCrunch's original
Block has introduced Dessa, a speech-based AI model that can listen while it talks and run on a capable computer. TechCrunch reports that the model is not publicly available yet, so workplace teams cannot try it themselves.
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What changed
Block has introduced Dessa, a voice model designed to listen and speak at the same time. According to TechCrunch, Block says the model learned from human speech rather than relying on a separate language model for its conversational knowledge. The company also says Dessa can express pauses, laughter and other vocal cues as part of a conversation.
Block says Dessa can run locally on a MacBook M4 Max or a more capable computer. That could matter for voice tools used at work, where a conversation may involve interruptions rather than a neat exchange of turns. TechCrunch reports that Block has shared conversation examples, but those examples do not establish how well Dessa would handle an actual workplace task. The model is not publicly accessible, so its performance outside Block’s demonstrations remains untested by potential users.
Who can use Dessa?
Dessa is not available to the public, according to TechCrunch. Block has instead invited safety researchers to test the model. The report does not give a release date, name any plans that include Dessa or state a price. A team considering voice AI therefore cannot sign up for Dessa or budget for its use based on the information available.
The likely workplace interest is in spoken interactions where a caller might interrupt, hesitate or change direction mid-sentence. TechCrunch notes that Block already sells services to small businesses, while Square uses voice AI for ordering. That context does not mean Dessa has been added to Square or any other Block product. For now, Dessa is a model announcement and a limited research opportunity, not a tool that businesses can deploy.
How do I try Dessa for work?
Dessa cannot be tried as a workplace tool yet because Block has not opened public access, TechCrunch reports. The practical next step is to identify a spoken task that would benefit from a system able to hear interruptions while it responds, then wait for access details before making a test plan. A customer ordering conversation is one relevant type of task, given the report’s discussion of Square’s existing voice AI use.
If Block makes Dessa available, check whether it follows the speaker’s request when the speaker interrupts, and whether its answer remains clear despite the expressive delivery. Also check whether it handles uncertainty plainly rather than sounding confident simply because its voice sounds natural. The published demonstrations show what Block chose to present; they do not tell a workplace team how the model will behave with its own callers, tasks or equipment.
Frequently asked questions
Can I use Block’s Dessa model now?
No. TechCrunch reports that Dessa has no public access at the moment. Block has invited safety researchers to test it, but the report gives no general release date, signup route or workplace plan. Teams interested in using it will have to wait for further availability details.
What makes Dessa different from a typical voice assistant?
Block says Dessa can listen and speak at the same time, allowing an exchange in which a person can interrupt the model. According to TechCrunch, Block also says the model learned from human speech and produces vocal cues such as pauses and laughter. Independent workplace performance is not established in the report.
Does Dessa run on a computer without remote processing?
Block says Dessa can run locally on a MacBook M4 Max or a more capable computer, according to TechCrunch. The report does not describe setup requirements or say whether a future workplace product would always run locally. Dessa is not publicly available for teams to verify its requirements themselves.
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Written with AI from TechCrunch's original and published after automatic checks: every figure here appears in the original, and no sentence is copied from it. The picture is AI-generated. The original is the authority.
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Source: Block’s new voice model sounds eerily human, TechCrunch, 24 Oct 2026.