Tuesday, April 28, 2026 — Wolf Digest

Audio briefing for Tuesday, April 28, 2026 — the day's top four AI research and industry stories, narrated in depth (roughly 10–15 minutes). Today's stories: (1) OpenAI–Microsoft AGI clause expires; deal restructured to enable $50B AWS partnership — OpenAI and Microsoft restructured the central commercial clause of their relationship today, retiring the long-running 'AGI clause' that for six years had said Microsoft's commercial intellectual-property rights to… (2) Ineffable Intelligence raises $1.1B at $5.1B valuation to build AI that learns without human data — David Silver — co-author of AlphaGo, AlphaZero, and the 'era of experience' position paper Silver and Sutton circulated in 2024 — has closed one-point-one billion dollars at a five-point-one-billion valuation for… (3) Musk vs. Altman trial opens in N.D. Cal. — verdict could constrain OpenAI's for-profit conversion ahead of IPO — The Musk-versus-Altman trial opened in the Northern District of California this week, the culmination of more than two years of pre-trial filings, mediation attempts, and amended complaints. (4) DeepSeek V4 preview drops with extended-context inference; community parses Friday's release — DeepSeek released a preview build of V4 late Friday, and the weekend has been spent by the community parsing what the open release actually means. Full written digest with all ranked items: https://wolfdigest.com/digests/2026-04-28.html