Sam Altman testifies before Congress, Rumble acquires Callin, IBM acquires Polar Security

OpenAI CEO Sam Altman testified before US Congress Tuesday, along with NYU's Gary Marcus and IBM's Christina Montgomery, to discuss AI risks and regulation - Link

Axios sources: Twitter acquired job-matching startup Laskie, which raised a total of $6M and was reportedly purchased for a sum in the "tens of millions" paid in cash and stock - Link

Rumble acquired social podcasting platform Callin; as part of the deal, Callin founder David Sacks will join Rumble's board of directors - Link

IBM acquired data security startup Polar Security for ~$60M and will integrate it into its Guardium unit - Link

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Sunny and Vinny are back to demo some new AI tools (14:08), discuss open-source vs. "ClosedAI" (38:45), and more! - Link

Warren Buffett’s Berkshire Hathaway fully exited its TSMC position due to geopolitical tensions between China and Taiwan; in contrast, Tiger Global and Coatue added TSMC shares in Q1 - Link

Zip, a startup that helps businesses manage spend, raised a $100M Series C at a $1.5B valuation, led by Y Combinator; Zip's customers include Snowflake, Coinbase, and Canva - Link

Founders of Indian fintech startup ZestMoney resigned following a failed acquisition by PhonePe and ongoing fundraising struggles; the startup has raised over $130M and helped democratize credit access in India - Link

Open-source AI startup Together raised a $20M Seed led by Lux Capital; the company focuses on creating open-source models that ensure transparency, privacy, and accessibility in AI technology - Link

This Week in Startups

E1742: Open-source vs. "ClosedAI," demoing new AI tools & more with Sunny Madra & Vinny Lingham

E1741: Using AI to revolutionize video game development with Scenario CEO Emmanuel de Maistre

E1740: Building brands and community + influencer marketing that actually works with Dee Murthy

E1739: Reid Hoffman on AI's "crescendo moment," regulation and real-world applications

E1738: Box CEO Aaron Levie breaks down Box AI and generative AI’s impact on business

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