Sebastian Thrun (born May 14, 1967) is a German-American computer scientist, roboticist, and entrepreneur best known for leading the Stanford team that won the 2005 DARPA Grand Challenge with the autonomous car Stanley, for founding Google's self-driving car project in 2009 (the program that later became Waymo), and for co-founding the online education company Udacity. [3][4][5] He co-founded Google X (Google's moonshot lab), helped create the field of probabilistic robotics, and pioneered the modern MOOC era with a free 2011 Stanford artificial-intelligence course that enrolled more than 160,000 students. [1][3]

Thrun has held faculty positions at Carnegie Mellon University and Stanford University, where he served as director of the Stanford Artificial Intelligence Laboratory (SAIL) from 2004. [1][3] Over three decades he has moved repeatedly between academia and industry, founding or co-founding Udacity, Kitty Hawk Corporation (electric VTOL aircraft), and Cresta (AI for contact centers), and serving as a Google Fellow and Vice President during the formative years of Google X. [3][8][15] He is a member of the United States National Academy of Engineering and the German National Academy of Sciences Leopoldina, and a fellow of the AAAI. [1][3]

Who is Sebastian Thrun?

Sebastian Thrun is one of the most influential figures in modern robotics and autonomous driving. As an academic he co-authored the standard graduate textbook "Probabilistic Robotics" (MIT Press, 2005) and co-invented the FastSLAM mapping algorithm; as an operator he founded and led the Google self-driving car project ("Project Chauffeur") that grew into Waymo, and as an entrepreneur he co-founded Udacity, an online-learning company that by 2024 reported roughly 16.9 million enrolled learners before being acquired by Accenture. [3][6][9][11][18] Google Scholar consistently ranks Thrun among the most-cited researchers in robotics and computer science. [2]

Early life and education

Sebastian Thrun was born on May 14, 1967, in Solingen, in what was then West Germany, the son of Winfried and Kristin (Gruner) Thrun. [3] He holds dual German and United States citizenship.

He studied at the University of Hildesheim, where he earned a Vordiplom (intermediate diploma) in computer science, economics, and medicine in 1988. [1] He then moved to the University of Bonn, where he completed a Diplom in computer science in 1993 and a PhD summa cum laude in computer science and statistics in 1995. [1][3] His doctoral advisors were Armin Bernd Cremers and Tom M. Mitchell, the latter of whom would shortly bring him to Carnegie Mellon University. While in Bonn, Thrun worked on the Rhino mobile robot project, which produced one of the first interactive museum tour-guide robots.

Career timeline

Period	Role	Institution / Company
1995 to 1998	Research computer scientist (postdoctoral), Computer Science Department	Carnegie Mellon University
1998 to 2003	Assistant professor (later Finmeccanica Associate Professor); co-director, Robot Learning Laboratory	Carnegie Mellon University
2003 to 2007	Associate professor of computer science	Stanford University
2004 to 2007	Director, Stanford Artificial Intelligence Laboratory (SAIL)	Stanford University
2007 to 2011	Full professor of computer science and electrical engineering	Stanford University
2011 to 2012	Google Fellow and Vice President; co-founder of Google X; lead of self-driving car project	Google
2012 to present	Co-founder, CEO, then chairman	Udacity
2010 to 2022	CEO and co-founder	Kitty Hawk Corporation
2017 to present	Co-founder and chairman	Cresta
Various	Adjunct professor	Stanford University and Georgia Tech

Carnegie Mellon University (1995 to 2003)

Thrun joined the Carnegie Mellon University Computer Science Department in 1995 as a research computer scientist working with Tom Mitchell. [1] He was promoted to assistant professor in 1998 and helped establish CMU's Robot Learning Laboratory. During this period he led work on the Minerva tour-guide robot, deployed at the Smithsonian's National Museum of American History in 1998, and on the Nursebot project, an assistive robot for elderly users developed jointly with the University of Pittsburgh. He also helped co-found CMU's Master's Program in Automated Learning and Discovery, an early degree focused on machine learning.

It was at CMU that Thrun did much of his foundational research on probabilistic methods for robotics, including Monte Carlo localization and the FastSLAM algorithm (see below).

Stanford University (2003 to 2011)

Thrun moved to Stanford in July 2003 as an associate professor in the Department of Computer Science, having spent a sabbatical there in 2001. [1] He was appointed director of the Stanford Artificial Intelligence Laboratory in January 2004, succeeding a long line of leaders that included John McCarthy. [1][3] Thrun stepped down as SAIL director in 2007 but remained a full professor of computer science and electrical engineering at Stanford until 2011.

During his Stanford years, Thrun's lab focused on autonomous driving. The Stanford Racing Team built Stanley, the modified Volkswagen Touareg that won the 2005 DARPA Grand Challenge, and Junior, the modified Volkswagen Passat that placed second in the 2007 DARPA Urban Challenge. [4][5] He also co-developed early elements of Google Street View through a Stanford-Google collaboration. [3]

What did Thrun do at Google? (Google and Google X, 2007 to 2014)

Thrun first became affiliated with Google around 2007 as part of the Street View collaboration. [3] In January 2009 he founded Google's self-driving car project ("Project Chauffeur") with Anthony Levandowski, recruiting many of his Stanford and CMU racing-team alumni. [3] The initial fleet consisted of seven Toyota Prius cars and one Audi TT, instrumented with LiDAR, radar, and cameras. The project was publicly revealed in October 2010, after the cars had already driven over 140,000 miles on California roads. [3]

In April 2011, Thrun gave up his Stanford tenure to join Google full-time as a Google Fellow and Vice President. [3] He was a co-founder of the secretive Google X research division (now simply X, the moonshot factory), where he served as the founding director and ran the lab from roughly 2010 until 2012. [3][15] Other early X projects he helped shape include Google Glass and Project Loon. Thrun's role at Google narrowed after 2012 as he turned his attention to Udacity, and the self-driving car program continued under other leadership before being spun out as Waymo, a separate Alphabet subsidiary, in December 2016. [7][13]

What is Udacity? (2012 to present)

Udacity is an online education company that Thrun co-founded with David Stavens and Mike Sokolsky, both former Stanford students who had worked on the Stanley project. [6] The company was incorporated in 2011, Thrun publicly co-founded it on January 23, 2012, and the first two courses, CS 101 "Building a Search Engine" and CS 373 "Programming a Robotic Car", launched on February 20, 2012. [3][6] Thrun left Stanford in part to focus on the new venture.

Udacity originally pursued a model centered on free university-style courses, including a partnership with San Jose State University to offer remedial mathematics and statistics for credit. [6][19] After completion and pass rates from the SJSU pilot proved disappointing, with fewer than ten percent of original enrollees completing some courses, the partnership was suspended in July 2013, and Thrun pivoted the company. [19] In a November 2013 Fast Company profile he reflected on the experiment and the SJSU results, telling reporter Max Chafkin, "We were on the front pages of newspapers and magazines, and at the same time, I was realizing, we don't educate people as others wished, or as I wished. We have a lousy product." [19] He announced a refocus on vocational training for working adults. The Nanodegree program followed in June 2014, launched jointly with AT&T, with curricula co-developed with industry partners that later included Google, Mercedes-Benz, Nvidia, and others. [6]

Thrun served as Udacity's CEO and then chairman as the company grew. By 2024, Udacity reported around 16.9 million enrolled learners across roughly 240 countries. [17] Accenture announced an agreement to acquire Udacity on March 5, 2024, and completed the acquisition on May 20, 2024; the purchase price was not disclosed publicly. [17][18] Udacity was folded into Accenture's LearnVantage business unit, which focuses on enterprise technology training. [18]

What was Kitty Hawk Corporation? (2010 to 2022)

Thrun was the CEO and co-founder of Kitty Hawk Corporation, a Mountain View startup developing electric vertical take-off and landing (eVTOL) aircraft, often described in the press as "flying cars". [8][14] The company was funded primarily by Google co-founder Larry Page. Kitty Hawk publicly unveiled the single-seat Flyer in 2017 and later developed the Cora autonomous air taxi (which spun out into a Boeing joint venture, Wisk Aero, in 2019) and the single-seat Heaviside aircraft. [8] The Flyer program was ended in June 2020. On September 21, 2022, Thrun announced that Kitty Hawk would wind down operations entirely, citing an inability to find a viable path to commercialization for Heaviside; the company stated, "We have made the decision to wind down Kittyhawk. We're still working on the details of what's next." [14] The Wisk Aero joint venture with Boeing continues independently. [8]

Cresta (2017 to present)

In 2017 Thrun co-founded Cresta at Stanford's AI lab with Zayd Enam and Tim Shi (an early researcher at OpenAI). [15][16] Cresta builds AI systems for contact centers, originally focused on real-time "Agent Assist" suggestions for sales and customer-service agents based on transformer language models trained on a customer's own call transcripts. [15] Thrun serves as chairman of the company. Cresta deployed its first production system at Intuit in 2018 and has since added customers across telecommunications, retail, and financial services. [15]

Research contributions

Thrun's academic work spans probabilistic robotics, machine learning, mobile robot navigation, autonomous vehicles, and online education research. He is one of the most cited researchers in robotics; Google Scholar consistently ranks him among the top computer-science authors by h-index. [2]

Area	Key contributions
Probabilistic robotics	Co-authored the standard graduate textbook "Probabilistic Robotics" (MIT Press, 2005) with Wolfram Burgard and Dieter Fox; developed Monte Carlo localization for mobile robots. [9]
SLAM	Co-invented FastSLAM (Montemerlo, Thrun, Koller and Wegbreit, AAAI 2002), a particle-filter-based factored solution that scales to tens of thousands of landmarks; published widely cited surveys on robotic mapping. [11]
Mobile robot perception	Designed the perception and Bayesian state-estimation stacks for the Rhino, Minerva and Nursebot tour-guide and assistive robots; introduced grid-based occupancy and ICP-style scan-matching techniques used in modern robot software.
Autonomous driving (Stanley)	Led the Stanford Racing Team that won the 2005 DARPA Grand Challenge with Stanley, a Volkswagen Touareg modified with five SICK LiDAR units, GPS-IMU positioning, cameras and roughly 100,000 lines of software running on six Pentium M computers. The team finished the 132-mile Mojave Desert course in 6 hours, 53 minutes and won the $2 million DARPA prize. [4][5][10]
Autonomous vehicles (Junior)	Led the Stanford team that built Junior, a modified Volkswagen Passat that finished second behind Carnegie Mellon's Boss in the 2007 DARPA Urban Challenge. [3]
Self-driving cars at Google	Founded and led Project Chauffeur in 2009, building one of the first fleets of fully self-driving cars to operate at scale on public roads. The project later became Waymo. [3][7]
Google Street View	Co-developed core perception and mapping techniques used in Google Street View. [3]
Online education	Co-taught the 2011 "Introduction to Artificial Intelligence" course with Peter Norvig, which enrolled over 160,000 students from more than 190 countries; this experiment helped trigger the global MOOC wave and led directly to the founding of Udacity. [1][20]

Probabilistic Robotics (2005)

"Probabilistic Robotics" (MIT Press, 2005), written with Wolfram Burgard and Dieter Fox, is the canonical graduate text on Bayesian methods for mobile robots. [9] It systematized topics including state estimation, particle filters, occupancy-grid mapping, Monte Carlo localization, EKF and FastSLAM, and probabilistic motion planning. Two decades on, it remains a standard reference in robotics courses worldwide.

How did Thrun win the 2005 DARPA Grand Challenge? (Stanley)

The Defense Advanced Research Projects Agency (DARPA) ran its second Grand Challenge on October 8, 2005, after no vehicle finished the first challenge in 2004. [5] The course was a 132-mile (about 212 km) loop through the Mojave Desert near the California-Nevada state line. Twenty-three vehicles started; only five finished. [5] Stanford's Stanley, a Volkswagen Touareg built in cooperation with Volkswagen's Electronics Research Laboratory in Palo Alto, finished first with a course time of 6 hours, 53 minutes and 8 seconds, edging out CMU's Sandstorm and Highlander. [4][5] The win earned the Stanford Racing Team the $2 million prize. [5][10] Key collaborators included software lead Michael Montemerlo, hardware lead Sven Strohband, computer vision lead Hendrik Dahlkamp, and David Stavens, later a Udacity co-founder. [10] The team's account was published as Thrun et al., "Stanley: The Robot that Won the DARPA Grand Challenge," in the Journal of Field Robotics in 2006. [10] Stanley itself is now in the collection of the Smithsonian's National Museum of American History. [4][12]

Junior and the 2007 DARPA Urban Challenge

For the 2007 DARPA Urban Challenge, which required cars to navigate a mock urban environment with traffic and intersections, Thrun's Stanford team entered Junior, a modified Volkswagen Passat. [3] Junior placed second behind Carnegie Mellon's Boss (Tartan Racing) in the November 3, 2007 final at the former George Air Force Base in Victorville, California.

The 2011 "Intro to AI" course and the MOOC moment

In the spring of 2011, Thrun has said in interviews that he was inspired by a TED talk by Salman Khan to open up his Stanford CS221 course to the world. He and his Stanford co-instructor Peter Norvig (Google's director of research) put a free online version of "Introduction to Artificial Intelligence" on the public web in October 2011. [20] Over 160,000 students from more than 190 countries enrolled, and tens of thousands completed the course. [1][20] The experiment was widely covered in the press and became a catalyst for the broader MOOC movement, alongside Andrew Ng's parallel Stanford machine-learning course (which led to Coursera). It also directly motivated Thrun's founding of Udacity later that year.

Selected publications

Thrun, S., Burgard, W., and Fox, D. (2005). "Probabilistic Robotics." MIT Press.
Thrun, S., et al. (2006). "Stanley: The robot that won the DARPA Grand Challenge." Journal of Field Robotics, 23(9), 661 to 692.
Montemerlo, M., Thrun, S., Koller, D., and Wegbreit, B. (2002). "FastSLAM: A factored solution to the simultaneous localization and mapping problem." Proceedings of AAAI 2002, 593 to 598.
Thrun, S. (2002). "Robotic mapping: A survey." In G. Lakemeyer and B. Nebel (eds.), Exploring artificial intelligence in the new millennium. Morgan Kaufmann.
Thrun, S. (2000). "Probabilistic algorithms in robotics." AI Magazine, 21(4), 93 to 109.
Thrun, S., Burgard, W., and Fox, D. (2000). "A real-time algorithm for mobile robot mapping with applications to multi-robot and 3D mapping." Proceedings of ICRA 2000.
Montemerlo, M., Thrun, S., Koller, D., and Wegbreit, B. (2003). "FastSLAM 2.0." Proceedings of IJCAI 2003.
Thrun, S., Beetz, M., Bennewitz, M., Burgard, W., et al. (1999). "Probabilistic algorithms and the interactive museum tour-guide robot Minerva." International Journal of Robotics Research, 19(11), 972 to 999.

Awards and honors

Year	Honor
1999 to 2003	NSF CAREER Award
2001	Olympus Award, German Society for Pattern Recognition
2005	DARPA Grand Challenge winner (Stanford Racing Team); Popular Science "Brilliant 10"
2006	Fellow, AAAI; Fellow, ECCAI (now EurAI)
2007	Elected to the U.S. National Academy of Engineering (at age 39)
2007	Elected to the German National Academy of Sciences Leopoldina
2010	IEEE ITSS Distinguished Researcher Award; named to Time magazine's "50 Best Inventions" list (Google self-driving car)
2011	Max Planck Research Award; AAAI inaugural Ed Feigenbaum Prize; named the fifth-most creative person in business by Fast Company
2012	Smithsonian American Ingenuity Award in Education; No. 4 on Foreign Policy magazine's Top 100 Global Thinkers list
2013	Carnegie Corporation "Great Immigrants" honoree
2016	Honorary doctorate, Delft University of Technology; honorary doctorate, Instituto Politecnico Nacional (Mexico)
2017	AAAI Classic Paper Award
2020	Honorary doctorate, University of Hildesheim; ICRA Milestone Award
2024	Honorary doctorate, Georgia Institute of Technology

He is also an ACM Fellow and a fellow of the European Association for Artificial Intelligence. [1]

Other ventures and public profile

In addition to his research and operating roles, Thrun has been an active angel investor and adviser to startups, and was for a time a partner at the Y Combinator-affiliated Continuity fund. He has given several TED talks, including a 2011 talk on Google's self-driving car and a 2017 talk on flight and Kitty Hawk's Flyer. He has been the subject of profiles in Wired, The New York Times, Fast Company, and Forbes, and has appeared on numerous podcasts and panels on AI policy, transport, and education. Thrun has lived primarily in Silicon Valley since 2003.

What are the criticisms of Thrun's ventures?

Thrun's career is mostly told as a story of successive moonshots, but several have ended without commercial success or have drawn criticism.

The most prominent setback was the 2022 wind-down of Kitty Hawk Corporation. [14] Despite more than a decade of development and substantial backing from Larry Page, neither Flyer (ended 2020) nor Heaviside reached certification or commercial deployment, and Thrun publicly stated that the company could not find a path to a viable business. [14] The Boeing-backed Wisk Aero joint venture survives, and Kitty Hawk's other technology assets were either spun out or shelved. [8]

Udacity has also drawn criticism. Thrun's own 2013 admission that the early Udacity product was a "lousy product" became a widely cited turning point in the MOOC discourse. [19] The collapse of the SJSU pilot was used by skeptics as evidence that pure online courses struggled to serve unprepared students. Later, the Nanodegree program's headline job-placement guarantees, including a money-back pledge if students did not land a job within six months, drew scrutiny from journalists and trainees who reported that placement rates and refund eligibility were narrower than the marketing implied. Udacity's commercial trajectory after the Nanodegree pivot was uneven, and the eventual 2024 sale to Accenture closed without a publicly disclosed price. [17][18]

The self-driving car program at Google was, by contrast, a clear technical success, but it has had its own controversies; Anthony Levandowski, an early co-lead of the project hired by Thrun, later left to found Otto and was sued by Waymo over alleged trade-secret theft, which ended in a 2017 settlement and a 2020 federal conviction for Levandowski. [7] These events post-date Thrun's day-to-day involvement.

ELI5: Sebastian Thrun in simple terms

Sebastian Thrun is a scientist who taught cars how to drive themselves. In 2005 his team built a robot car named Stanley that drove 132 miles across a desert all by itself and won a $2 million prize. [5][10] After that, Google asked him to help build the self-driving cars that became Waymo. He also started an online school called Udacity so anyone with the internet could learn about computers and robots, and he tried to build small flying "cars" with a company called Kitty Hawk.

References

Thrun, S. "Curriculum Vitae." Stanford University. https://web.stanford.edu/~thrun/cv.pdf
Stanford University. "Sebastian Thrun: Pioneer of AI and Self-Driving Cars (personal page)." https://robots.stanford.edu/personal.html
Wikipedia. "Sebastian Thrun." https://en.wikipedia.org/wiki/Sebastian_Thrun
Wikipedia. "Stanley (vehicle)." https://en.wikipedia.org/wiki/Stanley_(vehicle)
Wikipedia. "DARPA Grand Challenge (2005)." https://en.wikipedia.org/wiki/DARPA_Grand_Challenge_(2005)
Wikipedia. "Udacity." https://en.wikipedia.org/wiki/Udacity
Wikipedia. "Waymo." https://en.wikipedia.org/wiki/Waymo
Wikipedia. "Kitty Hawk Corporation." https://en.wikipedia.org/wiki/Kitty_Hawk_Corporation
Thrun, S., Burgard, W., and Fox, D. "Probabilistic Robotics." MIT Press, 2005. https://mitpress.mit.edu/9780262201629/probabilistic-robotics/
Thrun, S. et al. "Stanley: The Robot that Won the DARPA Grand Challenge." Journal of Field Robotics, 2006. https://robots.stanford.edu/papers/thrun.stanley05.pdf
Montemerlo, M., Thrun, S., Koller, D., and Wegbreit, B. "FastSLAM: A Factored Solution to the Simultaneous Localization and Mapping Problem." AAAI 2002. https://cdn.aaai.org/AAAI/2002/AAAI02-089.pdf
Smithsonian Magazine. "How a Blue SUV Named Stanley Revolutionized Driverless Car Technology." https://www.smithsonianmag.com/smithsonian-institution/how-a-blue-suv-named-stanley-revolutionized-driverless-car-technology-180984882/
TechCrunch. "Google's self-driving car unit becomes Waymo," December 13, 2016. https://techcrunch.com/2016/12/13/googles-self-driving-car-unit-spins-out-as-waymo/
TechCrunch. "Kittyhawk, the electric aircraft moonshot backed by Larry Page, is shutting down," September 21, 2022. https://techcrunch.com/2022/09/21/kitty-hawk-the-electric-aircraft-moonshot-backed-by-larry-page-is-shutting-down/
CNBC. "Google self-driving car creator Sebastian Thrun now working on Cresta," September 16, 2018. https://www.cnbc.com/2018/09/16/cresta-ai-enterprise-software-zayd-enam-sebastian-thrun.html
Cresta. "About Cresta." https://cresta.com/about-us
TechCrunch. "Accenture to acquire Udacity to build a learning platform focused on AI," March 5, 2024. https://techcrunch.com/2024/03/05/accenture-to-acquire-udacity-to-build-a-learning-platform-focused-on-ai/
Accenture. "Accenture Completes Acquisition of Udacity," May 20, 2024. https://newsroom.accenture.com/news/2024/accenture-completes-acquisition-of-udacity
Fast Company. "Udacity's Sebastian Thrun, Godfather Of Free Online Education, Changes Course," 2013. https://www.fastcompany.com/3021473/udacity-sebastian-thrun-uphill-climb
IEEE Spectrum. "You (YOU!) Can Take Stanford's Intro to AI Course Next Quarter, For Free." https://spectrum.ieee.org/you-you-can-take-stanfords-intro-to-ai-course-next-quarter-for-free

Editing: Sebastian Thrun