Hosted by Kevin Roose and Casey Newtonlucky sprite

Produced by Whitney Jones and Rachel Cohn

Edited by Rachel Dry

Engineered by Alyssa Moxley

Original music by Dan PowellElisheba IttoopMarion LozanoRowan Niemisto and Diane Wong

This week, Elon Musk brought a new chatbot into the crowded A.I. universe — Grok 3, the latest model from his company xAI. We break down how it compares with other leading models and what it reveals about Musk’s larger ambitions. Then, Vlad Tenev, the chief executive of the investing platform Robinhood, lays out his vision for the future of investing and fields some difficult questions about his company’s role in fueling a culture of risky financial speculation. Finally, Kevin revisits his high school coding era and tries to make Casey a new software tool, with an A.I. assist.

Disciplinary proceedings against Dr. Wax tested the tenure protections of professors and whether such protections allow them to voice opinions that many might find inappropriate or downright insulting. Many students said that they could not trust Dr. Wax to grade students without bias. But many professors — even those who found her comments profoundly racist — objected to disciplining her on the grounds of academic freedom.

The accountability office said many of those systems “have critical operational impacts” on air traffic safety and efficiency. Many of them are also facing “challenges that are historically problematic for aging systems,JILIKO” according to the report.

Guest:

Vlad Tenev, chief executive of Robinhood and co-founder of Harmonic.

Additional Reading:

There Are Probably Too Many A.I. Companies Now

An Investing Revolution Is Coming. The U.S. Isn’t Ready for It.

Is Math the Path to Chatbots That Don’t Make Stuff Up?

“Hard Fork” is hosted by Kevin Roose and Casey Newton and produced by Whitney Jones and Rachel Cohn. The show is edited by Rachel Dry. Engineering by Alyssa Moxley and original music by Dan Powell, Elisheba Ittoop, Marion Lozano, Diane Wong and Rowan Niemisto. Fact-checking by Caitlin Love. Our executive producer is Jen Poyant.

Special thanks to Paula Szuchmanlucky sprite, Pui-Wing Tam, Dahlia Haddad and Jeffrey Miranda.