All Episodes

August 5, 2025 32 mins

ChatGPT is the most well known of the Large Language Models (LLMs) but what is an LLM? We go deep into how this remarkable new technology is built, and why their performance is inconsistent — or jagged — across similar tasks. We dive into the techniques AI engineers use to align these tools’ behavior with our values, and explain why they don’t always work, and sometimes we get hallucinations or biased output. 

 

This episode was produced by Steven Jackson and Jesse Dukes

Editing:  Alexandra Salomon and Ruxandra Guidi  

Reporting and research from Holly McDede, Natasha Esteves, Andrew Parsons, Andrew Meriwether, Marnette Federis, and Chris Bagg.

Sound design and music supervision by Steven Jackson. 

Production assistance from Yebu Ji and Nathan Ray. 

Data analysis from Manee Ngozi Nnamani and Manasa Kudumu. 

Special thanks to Josh Sheldon, Camila Lee, Liz Hutner, and Eric Klopfer. 

Administrative support from Jessica Rondon. 

The research and reporting you heard in this episode was supported by the Spencer Foundation, the Kapor Foundation, the Jameel World Education Lab, the Social and Ethical Responsibility of Computing initiative at MIT, and the RAISE initiative, Responsible AI for Social Empowerment and Education also at MIT. 

We had support from Google’s  Academic Research Awards program. 

The Homework Machine is a program of the MIT Teaching Systems Lab, Justin Reich, director. 

Listen
Watch
Mark as Played

Advertise With Us

Popular Podcasts

Hey Jonas!

Hey Jonas!

Hey Jonas! The official Jonas Brothers podcast. Hosted by Kevin, Joe, and Nick Jonas. It’s the Jonas Brothers you know... musicians, actors, and well, yes, brothers. Now, they’re sharing another side of themselves in the playful, intimate, and irreverent way only they can. Spend time with the Jonas Brothers here and stay a little bit longer for deep conversations like never before.

Stuff You Should Know

Stuff You Should Know

If you've ever wanted to know about champagne, satanism, the Stonewall Uprising, chaos theory, LSD, El Nino, true crime and Rosa Parks, then look no further. Josh and Chuck have you covered.

Dateline NBC

Dateline NBC

Current and classic episodes, featuring compelling true-crime mysteries, powerful documentaries and in-depth investigations. Follow now to get the latest episodes of Dateline NBC completely free, or subscribe to Dateline Premium for ad-free listening and exclusive bonus content: DatelinePremium.com

Music, radio and podcasts, all free. Listen online or download the iHeart App.

Connect

© 2026 iHeartMedia, Inc.

  • Help
  • Privacy Policy
  • Terms of Use
  • AdChoicesAd Choices