Lex Fridman (born Alexei Alexandrovich Fedotov or Fridman on August 15, 1983) is an American or Russian-American computer scientist, artificial intelligence researcher, podcast host, and YouTuber of Ukrainian-Jewish descent.^{[1,21,7,36,44,3,72,71,9]} While most editions state he was born in Chkalovsk (now Buston) in the Tajik SSR of the Soviet Union, other sources claim he was born in Moscow or in Chkalovsk in the Russian SFSR.^[9] Fridman completed his undergraduate and graduate education at Drexel University, earning his BS, MS, and PhD in 2014 under Moshe Kam and Steven Weber with research on identity learning from behavioral biometrics for active authentication.

Fridman is an academic researcher affiliated with the Massachusetts Institute of Technology (MIT), where he transitioned to an unpaid role at the MIT AgeLab in 2019 while continuing to teach and conduct research.^{[7,21,4,44,3,72,43,18]} He began working as a research scientist at the MIT Laboratory for Information and Decision Systems (LIDS) in 2022 according to Arabic and English sources, or in 2023 according to Chinese Wikipedia.^[7,4,18] As of February 2024, Fridman lives in Texas but remains employed by MIT, drawing his salary and regularly visiting the campus.^[10] In 2019, Fridman rose to prominence after co-authoring a study at MIT that concluded drivers remained focused while using Tesla's semi-autonomous driving system; while praised by Elon Musk, the non-peer-reviewed study faced criticism from artificial intelligence experts.^[2,9]

Outside of academia, he is best known for hosting the Lex Fridman Podcast on YouTube and other platforms, which most language editions report began in 2018, though Swedish Wikipedia indicates it started in 2014.^[2,43] The podcast features discussions across science, technology, mathematics, philosophy, economics, politics, sports, and the arts, hosting notable figures such as Volodymyr Zelenskyy, Donald Trump, Benjamin Netanyahu, Elon Musk, Javier Milei, Jeff Bezos, Mark Zuckerberg, Jimmy Wales, Kanye West, Sam Altman, Ilya Sutskever, Vitalik Buterin, Jordan Peterson, and Oliver Stone.^[2,71]

Lex Fridman was born on August 15, 1983, in Chkalovsk (now Buston), Leninabad Oblast, Tajik Soviet Socialist Republic (now Tajikistan), and grew up and studied in Moscow until his teenage years.^{[2,18,23,5,46,43,103,24]} At birth, he was registered as Alexei Alexandrovich Fedotov with his mother's maiden name, while other editions identify him as Alexei Alexandrovich Fridman.^[18] He is of Ukrainian-Jewish and Russian-Jewish descent, with Arabic Wikipedia stating he is Jewish by religion, and part of his family died during the Holocaust.^{[4,23,3,51,47,49,24,43,46,112,50]} His father, Alexander Arkadyevich Fridman (Aleksandr), is a Jewish plasma physicist born in Kyiv who holds a PhD from the Moscow Institute of Physics and Technology, worked in Moscow until 1994, and serves as the John A. Nyheim Endowed Chair Professor and director of the C. & J. Nyheim Plasma Institute at Drexel University's College of Engineering.^{[23,24,25,51,47,49,52,50,43,48,103,9,93,122,121]} His mother grew up in Kharkiv, where his maternal grandmother was also born and raised, and his maternal grandfather served as a Red Army machine gunner in the Ukrainian Front fighting against Nazi forces during World War II.^{[23,51,47,49,6,24,5,3,50,103,9,93,52]} His older brother, Gregory (Grigori) Fridman, is also a plasma physics researcher and professor who has taught and researched at Drexel University.^{[2,9,13,93,3,122,121]} In 1994, when Fridman was about 11 years old shortly after the dissolution of the Soviet Union, his family moved from Moscow to the Chicago area in the United States.^{[2,3,11,24,25,6,9,103,8]}

Fridman attended high school in the Chicago suburb of Naperville, Illinois, beginning at age 13, and graduated from Neuqua Valley High School in 2001.^{[6,13,37,46,3,53,11,5]} He then studied computer science at Drexel University in Philadelphia, earning Bachelor of Science and Master of Science degrees in 2010.^{[8,5,11,6,54,52,106,4]} In 2014, he obtained his doctorate from Drexel University, with most language editions stating the degree was in electrical and computer engineering, while Armenian and Russian state computer engineering, and Swedish lists computer science.^{[8,5,11,6,54,52,103,106,53,45,4]} His doctoral dissertation, Learning of Identity from Behavioral Biometrics for Active Authentication, was completed under the advisement of Moshe Kam and Steven Weber and sought to investigate the problem of active authentication mechanisms on desktop computers and mobile devices.^{[9,6,8,53,54,5,52,45]}

Following his graduation, Fridman initially worked for six months at Google in the fields of biometrics and machine learning, and authored several works published in scientific journals.^[26] In 2015, he began conducting research and lecturing at the Massachusetts Institute of Technology (MIT), focusing on artificial intelligence, deep learning, autonomous vehicles, and social robotics, including autonomous driving projects in collaboration with Toyota.^[3,7,25,26] In 2019, Fridman published a big-data study under the seal of MIT claiming that drivers remained focused and attentive while operating Tesla vehicles with semi-autonomous driving systems.^[8] The study was not peer-reviewed and drew severe criticism from artificial intelligence experts for sloppy methodology and substantive errors, leading MIT to distance itself from it, while Fridman transitioned that year to an unpaid position at the MIT AgeLab.^[8,6,2] Despite the academic controversy, the study marked a breakthrough in public visibility after Tesla CEO Elon Musk praised it and invited Fridman to record an interview, giving major exposure to the tech podcast Fridman had launched on YouTube in 2018.^{[8,10,113,83]} Fridman's podcast, which has accumulated over half a billion views and was ranked among Forbes's 17 recommended tech podcasts in 2021, has featured high-profile guests including Elon Musk, Donald Trump, Benjamin Netanyahu, Javier Milei, Volodymyr Zelenskyy, Guido van Rossum, Mark Zuckerberg, Jeff Bezos, Jordan Peterson, Vitalik Buterin, Oliver Stone, Sam Altman, Ilya Sutskever, Kanye West, Matthew McConaughey, and Joe Rogan.^{[114,115,71,9,13]} Business Insider noted that the podcast has provided a platform for Joe Rogan on intelligence surveillance, Jordan Peterson questioning climate models, Kanye West on Jewish media control, a bitcoin entrepreneur criticizing FDA regulation, and Musk discussing personal matters, characterizing Fridman as their mouthpiece.^[113] Fridman has worked as a researcher at the MIT Laboratory for Information and Decision Systems (LIDS) since 2022 or 2023; he also holds a black belt in Brazilian Jiu-Jitsu and lives in Austin, Texas.^[9,27,7]

Fridman began his career in 2014 working on machine learning at Google, where he was hired to continue his doctoral dissertation work on using artificial intelligence for identity verification.^{[8,7,54,73,6,25]} He left Google after six months, stating that he preferred the chaos of research and the academic environment with a model of free exploration.^[8,7] In 2015, he moved to MIT's AgeLab as a research scientist to work on psychology and big data analytics to understand driver behavior. At AgeLab, Fridman led a team of computer engineers in developing learning algorithms for semi-autonomous vehicles in collaboration with Toyota.^[38] In 2017, he worked on computer vision, deep learning, and planning algorithms for semi-autonomous vehicles.^{[25,29,45,3,107]} In 2017, a paper co-authored by Fridman received a "Best Paper" award at the Conference on Human Factors in Computing Systems, followed by another co-authored paper receiving an "honorable mention" the next year.^[40,7,9] Fridman also guest lectured at his alma mater, Drexel University, and had his work published in peer-reviewed journals.^[39,41,25]

In 2018, Fridman launched his podcast, originally created as part of MIT's course 6.S099 on artificial general intelligence under the name Artificial Intelligence Podcast before being renamed the Lex Fridman Podcast to cover a broader scope of topics. The podcast features long-form, in-person interviews typically lasting two to four hours on topics such as artificial intelligence, science, technology, history, philosophy, consciousness, love, and power, with guests including Elon Musk, Mark Zuckerberg, Ray Dalio, Jack Dorsey, Magnus Carlsen, and Ye.^[61,58,57] In 2019, Fridman published a non-peer-reviewed preprint study on Tesla Autopilot that found drivers using semi-autonomous vehicles remained focused, contrary to established research on human interaction with automated systems. Following the study, Fridman traveled to Tesla's offices to interview Elon Musk, after which viewings and traffic for his podcast episodes grew significantly. Fridman's study was criticized for its methodology and small sample size by Duke University professor and NHTSA advisor Missy Cummings, who described it as deeply flawed, while AI researcher Anima Anandkumar suggested he should have submitted the research for peer review before seeking media coverage.^[2,3,18] The study was subsequently removed from MIT's website, and Fridman left AgeLab following the controversy to take up an unpaid role in MIT's Department of Aeronautics and Astronautics.^[2,9,3,8,45]

Sources vary on the timeline of his subsequent position, stating that as of either 2022 or 2023, he became a research scientist at the MIT Laboratory for Information and Decision Systems (LIDS).^[10] He remains in that position and also conducts research for the Center for Complex Engineering Systems, a collaboration between MIT and King Abdulaziz City for Science and Technology.^[10,42] Described across sources as a research scientist, researcher, lecturer, or professor at MIT, his ongoing work includes research on human-centered artificial intelligence, autonomous vehicle development, deep learning, and personal robotics.^{[6,55,54,3,73,45,58]}

Fridman started his podcast in 2018, originally as part of an MIT course on artificial general intelligence, identified as Course 6.S099 or Course 6.S009.^{[58,56,57,29,108]} Originally titled The Artificial Intelligence Podcast, its name was changed to The Lex Fridman Podcast in 2020 to reflect a broader range of topics and allow more freedom, unlike his previous show which aimed to be more general and personal.^{[58,56,57,108,29]} Structured as a long-form interview show, the podcast features in-person conversations that typically last two to four hours, discussing artificial intelligence, science, technology, history, philosophy, and the nature of intelligence, consciousness, love, and power with researchers, engineers, and public figures.^{[58,56,74,90,108,29]} As of November 4, 2022, Fridman had over 2.2 million subscribers on YouTube with more than 280 million views, and in 2024, The Boston Globe reported that the podcast had attracted 3.6 million subscribers.^{[10,12,3,11,28]}

The podcast has featured a wide range of guests, including entrepreneurs and executives such as Elon Musk (interviewed multiple times), Mark Zuckerberg (interviewed three times), Jeff Bezos, Jack Dorsey, and Ray Dalio.^{[11,9,23,30,56,70,75,77,31,78,79,60,80,81,82,83,84,59,86,87,88,89,90,61,92,110,74,12,124,125,132]} It has also hosted scientists, academics, and technologists, including Vitalik Buterin, Nick Bostrom, Michio Kaku, Richard Dawkins, Steven Pinker, Demis Hassabis, John Carmack, Neri Oxman, Lisa Randall, Noam Chomsky, John Mearsheimer, and Jean-Baptiste Kempf.^{[11,9,23,30,70,75,77,31,78,79,60,80,81,82,83,84,59,86,87,88,89,90,61,92,132]} Other guests have included authors, commentators, and public figures such as Michael Malice, Douglas Murray, Jordan Peterson, Sam Harris, Ben Shapiro, Destiny, Park Yeon-mi, Niall Ferguson, and Wikipedia co-founder Jimmy Wales (interviewed twice), as well as chess grandmaster Magnus Carlsen, video game designer Todd Howard, actor Matthew McConaughey, music producer Rick Rubin, and musician Grimes.^{[11,9,23,30,56,70,75,77,31,78,79,60,80,81,82,83,84,59,86,87,88,89,90,61,92,110,74,12,124,125,132]} In his third interview with Elon Musk, Fridman discussed Musk's views on space exploration and cryptocurrencies.^[65,66] Combining his interest in Brazilian jiu-jitsu and other combat sports, Fridman has also interviewed martial artists including UFC world champion Georges St-Pierre, Olympic judoka Travis Stevens, Roger Gracie, John Danaher, and Craig Jones.^{[70,75,77,31,78,79,60,80,81,82,83,84,59,86,87,88,89,90,61,92,97,98,99]}

The podcast has included interviews with political figures and discussions on international relations, featuring Joe Rogan (interviewed twice), filmmaker Oliver Stone, Donald Trump in September 2024, Argentine President Javier Milei in November 2024, Ukrainian President Volodymyr Zelenskyy (including a three-hour interview in January 2025), and Jared Kushner.^{[11,9,23,30,34,33,35,56,70,75,77,31,78,79,60,80,81,82,83,84,59,86,87,88,89,90,61,92,74,12,124,125,132]} In July 2023, Fridman conducted three conversations providing insight into the political situation in Israel and Palestine with Benjamin Netanyahu, Yuval Noah Harari, and Mohammed El-Kurd, and in early 2024 held discussions with Mouin Rabbani, Norman Finkelstein, and Benny Morris.^{[11,9,32,23,12,124,125,132]} In October 2022, musician Kanye West (Ye) made a two-hour and 26-minute appearance on the podcast, during which he made a series of hurtful, inflammatory, and false statements regarding the Holocaust, abortion, and Jewish people.^{[11,9,13,23,30,70,75,77,31,78,79,60,80,81,82,83,84,59,86,87,88,89,90,61,92,110,74,12,124,125,132]} When posting a link to the interview with West on X, Fridman stated that he believes in the power of tough, honest, and empathetic conversation to increase the amount of love and goodwill in the world.^[13,19]

Computational biologist Lior Pachter stated that some scientists and academics fear Fridman contributes to the "cacophony of misinformation," while an anonymous artificial intelligence researcher suggested that Fridman may have abandoned academic rigor in pursuit of fame.^[2,14,19] Julia Black of Business Insider noted these remarks and wrote that Fridman's body of work centers on the idea that individuals can be trusted to use technology to become better versions of themselves, observing that while it remains to be seen whether he has the credentials or intelligence to be a tech figurehead, he has the support of very powerful people. Among his colleagues at MIT, physicist and Nobel laureate Frank Wilczek praised Fridman as an effective science communicator who is "helping people understand science" and operates on a "higher intellectual plane" than many journalists who cover science.^{[10,14,19,11]} MIT LIDS director Sertac Karaman also commended Fridman—who was a research scientist in his research group at MIT LIDS—for his ideas and research achievements, affirming that he is "doing the Lord's work, helping people understand science."^[2] MIT professor Manolis Kellis praised his interviewing approach, describing him as a listener who is there to learn alongside the audience without pushing an agenda or trying to seem smart.

Journalist Helen Lewis wrote in The Atlantic that Fridman "does not maintain even a thin veneer of journalistic detachment" from his interviewees, noting that he has interviewed personal friends such as Ivanka Trump and Jared Kushner, with whom Fridman shared on LinkedIn that he spent Thanksgiving in 2023 watching The Godfather. Lewis pointed out that during a 2024 interview with Donald Trump, Fridman allowed the candidate to make unchallenged false claims about the Arlington National Cemetery incident, but defended his close friend Joe Rogan—for whom he had written and serenaded a tribute—saying Trump had been nasty to him.^[6,10,19] Nathan J. Robinson of Current Affairs observed that although Fridman is not an ideologue and seems sincere in wanting to empathetically understand leftists—having interviewed figures such as Richard Wolff, Steve Keen, Cenk Uygur, and Noam Chomsky, and hosted a debate between Bjørn Lomborg and Andrew Revkin—his show exhibits an imbalance similar to Joe Rogan's, featuring far more right-leaning "Intellectual Dark Web" types than leftists.^[15] Robinson added that Fridman's podcast demonstrates how an attitude and posture of neutrality fails to adequately challenge falsehoods and toxic beliefs.^[14,15]

Elizabeth Lopatto wrote in a 2023 article for The Verge that Fridman's podcast has a following among the tech elite and characterized him as a "softball interviewer" who does not ask confrontational or probing questions.^[3,15,9] In Haaretz, Ben Samuels argued that Fridman failed to dispute or challenge claims made on his podcast by Israeli Prime Minister Benjamin Netanyahu.^[15,7,20] Ellen Huet noted in a 2024 Bloomberg News article that tech executives and CEOs view Fridman's podcast as a friendlier alternative to more adversarial interviews with traditional journalists.^[16,10,20,2] Writing for the Jüdische Allgemeine, journalist Sebastian Moll commented that while the Big Tech elite, especially Elon Musk, increasingly pushes back against left-liberalism and political correctness, Fridman is riding the wave with them and has become one of their megaphones.^[8]

Lex Fridman is of Ukrainian descent and completed his schooling in Naperville, Illinois.^[55,24] His father, Alexander Fridman, is a professor at Drexel University.^[53] Fridman currently resides in Austin, Texas.^[2]

Fridman has trained in Brazilian jiu-jitsu for years and holds a first-degree black belt awarded at Balance Studios in Philadelphia, Pennsylvania, under Rick and Phil Migliarese (specifically sixth-degree Relson Gracie black belt Phil Migliarese III).^{[17,68,69,23,70]} He also holds a black belt in judo.^[23,70] He has participated in several grappling competitions, notably including a 2013 Professional Grappling League match against submission grappler and ADCC medalist Garry Tonon, which was one of his most well-known competitive appearances.^[69,53]

Born on August 15, 1983, Lex Fridman is a living American podcast entrepreneur, host, blogger, and interview podcaster. He produces an interview-style podcast and has served as an MIT Community Class speaker and podcaster on human-centered AI. External links also include Lex Fridman on Google Scholar.

Fridman began his podcast in 2018, initially as part of the MIT course 6.S099 on artificial general intelligence.^[29,25] Its original title was the Artificial Intelligence Podcast, which was later changed to the Lex Fridman Podcast to reflect the wider variety of topics that it would cover.^[57] Fridman uses the podcast to discuss "AI, science, technology, history, philosophy and the nature of intelligence, consciousness, love and power".^[57] Structured as a long-form interview show, the interviews are conducted in person and are typically two to four hours in length.

The podcast has featured musician Kanye West, the 16th World Chess Champion Magnus Carlsen, hedge fund manager Ray Dalio, Prime Minister of Israel Benjamin Netanyahu, historian Yuval Noah Harari, and business and tech tycoons Jack Dorsey, Elon Musk, Mark Zuckerberg, and Jeff Bezos.^{[58,90,75,31,94]} Fridman has also integrated his interest in Brazilian Jiu-Jitsu and other grappling arts into his podcast, such as interviewing UFC World Champion Georges St-Pierre, Olympic judoka Travis Stevens, Roger Gracie, John Danaher, and Craig Jones.^[95,96,97]