Jack Dorsey Launched an App That Bans AI Entirely. Then He Launched One Built Around AI Teammates. Same Year.

I noticed something odd putting together coverage of Jack Dorsey's newest project, Buzz, this week: it's not actually his newest AI-related launch this year. A few months earlier, Dorsey funded diVine, a revived version of Vine built specifically to keep AI-generated content out entirely — verified human creators, algorithmic detection flagging anything synthetic, a whole platform architected around the idea that authenticity now means proving a human made something. Then, this July, the same person launched Buzz, a workplace platform whose entire pitch is AI agents sitting in your team chat as full, persistent participants. Read as two separate headlines, they're unrelated product launches. Read together, they're a genuinely interesting statement about where Dorsey — and maybe the more thoughtful end of the tech industry generally — actually draws the line on AI. The direct answer: Jack Dorsey has backed two AI-related software projects in 2026 with seemingly opposite philosophies. diVine, a revived version of Vine launched earlier this year, bans AI-generated content outright and verifies that new posts are human-made. Buzz, launched July 21, 2026, is a team collaboration platform built around AI agents participating as persistent, first-class members of a workspace. Both run on the same underlying technology — the decentralized Nostr protocol — and both reflect a consistent underlying position once you look past the surface contradiction: AI's proper role depends entirely on context, and the actual value Dorsey is protecting in both cases isn't "no AI" or "more AI" — it's human control over which is which. Quick Facts: Two Products, Side by Side diVine Buzz Launched Public launch April 2026 (announced Nov 2025) July 21, 2026 Category Social media / short-form video Team chat and collaboration AI stance AI-generated content banned outright AI agents included as core participants Built by "and Other Stuff" (Dorsey's nonprofit), led by Evan Henshaw-Plath Block (Dorsey's company) Underlying protocol Nostr (decentralized) Nostr (decentralized) Verification approach Detects and blocks suspected AI-generated content Gives each AI agent a cryptographic identity and audit trail Core pitch "Raw, unfiltered creativity of real people" "Where people and agents work together" What diVine Actually Is diVine is a revival of Vine, the six-second looping video app Dorsey originally shut down as Twitter's CEO back in 2016. The relaunch, financed through Dorsey's nonprofit "and Other Stuff" and built by early Twitter employee Evan Henshaw-Plath, restored roughly 500,000 archived videos from the original platform and lets users create new clips — with one strict condition. Every new upload has to be verifiably human-made. The app uses AI detection tooling adapted from human-rights nonprofit the Guardian Project to check whether content was actually recorded on a real device by a real person, and suspected AI-generated content gets flagged and blocked from posting entirely. The reasoning behind that restriction is explicit rather than incidental. Dorsey and the diVine team have framed the entire project as a direct response to what they see as AI-generated content — often called "slop" — increasingly overwhelming mainstream platforms, citing research suggesting more than a fifth of videos shown to new YouTube users are AI-generated. diVine's entire value proposition rests on being a space where that specific problem structurally can't happen, verified rather than just requested. What Buzz Actually Is Buzz, covered in detail elsewhere on this site, is Block's new open-source challenger to Slack and GitHub, built around a very different premise: AI agents shouldn't be tools you reach for occasionally, they should be persistent members of a team's actual working channels, reading conversations, performing tasks, writing code, and collaborating directly alongside human coworkers. Rather than restricting AI, Buzz is architected to make AI participation as seamless and central as possible, giving each agent its own cryptographic identity and permission scope so its actions remain fully auditable within the workspace. The Surface Contradiction Put side by side, the two products look like a genuine ideological flip. One platform exists specifically to keep AI out. The other exists specifically to bring AI in as deeply as possible. If you only read headlines about each launch separately — which is how almost all existing coverage has treated them — it's easy to conclude Dorsey simply doesn't have a coherent position on AI, or that he's opportunistically building whatever generates attention in a given news cycle. That reading doesn't hold up well once you look at what both products actually share underneath the surface framing. The Thread That Actually Connects Them Both diVine and Buzz run on the same underlying technology: Nostr, a decentralized protocol that represents activity as cryptographically signed events rather than routing