Twitter stories

Jul 21, 2026

Jack Dorsey launches Buzz, workplace chat platform for humans and AI agents

Twitter and Block co-founder Jack Dorsey announced Buzz, a new group chat platform positioning itself as a Slack competitor that enables both human teams and AI agents to collaborate, with agents able to sign their own work.

Jul 21, 20263 sources

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Apr 30, 2026

Parallel Web Systems Raises $100 Million at $2 Billion Valuation Five Months After Previous Round

The AI agent-tool startup founded by former Twitter CEO Parag Agrawal has raised $100 million led by Sequoia, reaching a $2 billion valuation just months after its last $100 million raise.

Apr 30, 20261 source

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Featured Stories

OpenAI pauses development of Astra AI model over critical cybersecurity capability concerns

Aug 7, 20262 sources