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1/ This Tiny Algorithm Just Beat 18 Years of Infertility

After 18 years of trying, one couple is finally expecting—thanks to AI. Doctors at Columbia used an AI tool called STAR to find just three hidden sperm cells in a man with severe infertility, something human experts couldn’t do after days of searching. The AI scanned 8 million images in under an hour and made the impossible happen. Now, the couple is pregnant through IVF, and their baby is due in December. STAR is still only used at Columbia, but it could seriously change the game for families struggling with infertility.

2/ Claude Says “It’s Fine,” Gemini Plots Revenge, OpenAI Stays Loyal

AI models just played 140k rounds of the Prisoner’s Dilemma—and things got interesting. Turns out, each model (OpenAI, Google’s Gemini, and Anthropic’s Claude) developed its own vibe. Gemini went full savage and adapted fast, OpenAI stayed nice even when it got burned, and Claude was surprisingly chill and forgiving. They all reasoned through the game with written explanations, not just guesses. The wild part? These unique strategies came from models trained on the same stuff—proof that they’re not just parroting patterns but actually thinking in their own weird ways.

3/ Sakana AI Just Proved 3 Models Are Smarter Than One

Sakana AI just dropped a wild new algorithm called AB-MCTS that basically makes top AI models like ChatGPT, Gemini, and DeepSeek work together like a super team. Instead of one model trying (and failing) to solve complex problems solo, they tag in based on strengths—some do strategy, others handle code. The result? They solved 30% of tough ARC puzzles compared to 23% solo. Even cooler, they learn from each other’s mistakes. Sakana made the framework open-source as “TreeQuest,” so devs can build their own AI dream teams.

4/ OpenAI’s Legal “Nuclear Option” Could Blow Up Its Microsoft Ties

OpenAI and Microsoft are beefing—big time. Their $13B partnership is now at a “boiling point,” with OpenAI eyeing antitrust action over fights about compute access, IP rights (especially after its $3B Windsurf deal), and power plays. Microsoft’s grip on GitHub Copilot isn’t helping, and OpenAI’s already cozying up to Google to break free. The AI honeymoon’s over, and things are getting real messy.

5/ OpenAI Just Shot Its Shot at Google Chrome

OpenAI says it’d totally be down to buy Google Chrome—if the courts ever force Google to sell it. The comment came during a major antitrust trial where the DOJ is trying to break up Google’s dominance in online search. Google’s not having it, insisting Chrome isn’t up for grabs and calling the lawsuit bogus. OpenAI previously tried partnering with Google (no luck), and now it’s riding with Microsoft and Bing. Meanwhile, Google’s flexing Gemini, and OpenAI might even be cooking up its own social network. The AI wars just keep getting juicier.

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