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Sam Altman

Sam Altman is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Sam Altman rather than just read about it. In short: Samuel Harris Altman (born April 22, 1985) is an American entrepreneur and investor who has been the chief executive officer (CEO) of the artificial intelligence company OpenAI since 2019. Altman attended Stanford University for two years before he dropped out and co-founded Loopt, a geosocial networking application for smartphones.

Sam Altman — main illustration
Sam Altman — illustration

Key takeaways

  • Sam Altman belongs to computer science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Sam Altman to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Sam Altman from memory before moving on to harder problems.

Reference excerpt

Samuel Harris Altman (born April 22, 1985) is an American entrepreneur and investor who has been the chief executive officer (CEO) of the artificial intelligence company OpenAI since 2019. Altman attended Stanford University for two years before he dropped out and co-founded Loopt, a geosocial networking application for smartphones. Loopt was acquired by Green Dot Corporation for $43.4 million in March 2012. In 2011, Altman joined Y Combinator, a technology startup accelerator and venture capital firm, and was the company's president from 2014 to 2019. He is a billionaire, due to investments in over 400 companies including Reddit, Worldcoin, Helion Energy and Instacart. Altman co-founded OpenAI in 2015 and became its CEO in 2019, a role that made him a prominent figure of the AI boom. He supervised the launch of ChatGPT in November 2022. In 2023, he was ousted by the organization's board of directors for not being "consistently candid". The move was met with significant backlash from employees and investors, resulting in Altman's reinstatement five days later and the formation of a new board.

Early life and education Altman was born in Chicago on April 22, 1985, to a Jewish American family. His mother Connie Gibstine is a dermatologist and his father Jerry Altman was a real estate broker. He is the eldest of four siblings: he has two brothers, Max and Jack; and a sister, Ann. His paternal great-grandfather was born in Płock, Poland. In 1989, the Altman family moved to Jerry's hometown of Clayton, Missouri. At eight, Altman received his first computer—an Apple Macintosh—and began learning how to code and disassemble and examine computer hardware. He attended John Burroughs School, a private institution in Ladue, Missouri. In 2005, after studying computer science for two years at Stanford University in Stanford, California, he dropped out without earning a bachelor's degree.

Business career

Early career In 2005, at the age of 19, Altman co-founded Loopt, a location-based social networking mobile application. As CEO, he raised more than $30 million in venture capital for the company, including an initial investment of $5 million from Patrick Chung of Xfund and his team at New Enterprise Associates, followed by investments from Sequoia Capital and Y Combinator. The company bought geolocation data from cellular providers and attempted to make an early social network for users to see where their friends were in real time. The board of Loopt attempted, twice, to remove Altman from his role as CEO, but Altman's supporters defended him and stated the attempts were not serious. In March 2012, after Loopt failed to gain significant user traction, the company was acquired by the Green Dot Corporation for $43.4 million.

Y Combinator In 2011, Altman became a partner at startup accelerator Y Combinator (YC), initially working on a part-time basis. In February 2014, he became president of YC, replacing YC co-founder Paul Graham, who had been his mentor. Altman aimed to expand YC to fund 1,000 new companies per year and sought to broaden the types of companies funded, particularly focusing on "hard technology" startups. In October 2015, Altman was involved in expanding YC's scope. He invested in multiple startups such as Stripe, Inc.. In September 2016, Altman's role at YC expanded to president of YC Group, which included Y Combinator and other units. By 2018, Altman's role at OpenAI made him less often present at YC, and several YC partners had complained to Graham that Altman was using his role to have the priority in investment opportunities. Graham said that Altman had agreed to leave YC, but was resisting in practice. YC moved its headquarters to San Francisco in 2019. In March, Altman and YC began to falsely claim that Altman had transitioned from president to a less hands-on role as chairman of the board, allowing him to focus on OpenAI. Graham was "unambiguous that Altman was removed because of Y.C. partners' mistrust."

Investor

As of June 2024, Altman's investment portfolio includes stakes in over 400 companies, valued at around $2.8 billion. Some of these investments intersect with companies doing business with OpenAI, which has raised questions about potential conflicts of interest. OpenAI's chairman of the board, Bret Taylor, maintained that Altman has been transparent about his investments. In April 2012, Altman co-founded Hydrazine Capital with his brother, Jack Altman. The initial $21 million fund included a large part of the $5 million he got from selling Loopt, but most came from Peter Thiel, his mentor and main backer in Silicon Valley. Sam Altman invested 75 percent of the money in Y-Combinator companies. In 2023, when Hydrazine launched its fourth fund, the University of Michigan endowment was the only outside investor. Its investments in Hydrazine were the largest the endowment has made. Altman debuted on the Bloomberg Billionaires Index in March 2024 with an estimated net worth of $2 billion, primarily from his venture capital funds related to Hydrazine Capital. He was invited to attend the Bilderberg Meeting in 2016, 2022, and 2023.

Biotech Altman has several other investments in companies including Humane, which was developing a wearable AI-powered device; Retro Biosciences, a research company aiming to extend human life by 10 years; Boom Technology, a supersonic airline developer; Cruise, a self-driving car company later acquired by General Motors; and Helion Energy, an American fusion research company. During the COVID-19 pandemic, Altman helped fund and create Project Covalence to help researchers rapidly launch clinical trials in partnership with TrialSpark, a clinical trial startup. During the depositor run on Silicon Valley Bank in mid-March 2023, Altman provided capital to multiple startups. Altman invests in technology startups and nuclear energy companies. Some of his portfolio companies include Airbnb, Stripe, and Retro Biosciences. Along with Peter Thiel, Altman was an early seed investor in Minicircle, "a longevity biotech company focused on developing gene therapies to extend human lifespans." He also invested in charter city projects Próspera and Praxis, which have gotten additional financial support from author and former Coinbase CTO Balaji Srinivasan. Both cities have been associated by various publications and journalists with the Network State movement.

… excerpt ends here. Continue reading the full article.

Illustrations

Sam Altman illustration
Sam Altman illustration
Sam Altman: Nancy Pelosi presenting Altman with the Ric Weiland Award in 2017
Nancy Pelosi presenting Altman with the Ric Weiland Award in 2017
Sam Altman: Orb-shaped iris scanners on display
Orb-shaped iris scanners on display
Sam Altman: The percentage of US adults who have ever used ChatGPT, according to Pew Research, is shown. As of March 2025,  58% of those under 30 have used the chatbot.[84]
The percentage of US adults who have ever used ChatGPT, according to Pew Research, is shown. As of March 2025, 58% of those under 30 have used the chatbot.[84]

Worked examples

Example 1 — a first encounter with Sam Altman

Start with the simplest possible case. Write down what Sam Altman claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Sam Altman before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Sam Altman ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Sam Altman

In research
Sam Altman appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Sam Altman in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Sam Altman is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1985 births, 21st-century American Jews, 21st-century American LGBTQ people, so understanding it makes those chapters shorter.
In everyday life
Look for Sam Altman outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Sam Altman in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Sam Altman means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Sam Altman out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Sam Altman in simple terms?

Samuel Harris Altman (born April 22, 1985) is an American entrepreneur and investor who has been the chief executive officer (CEO) of the artificial intelligence company OpenAI since 2019. Altman attended Stanford University for two years before he dropped out and co-founded Loopt, a geosocial netw…

Why does Sam Altman matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Sam Altman?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Sam Altman.

Tags

  • 1985 births
  • 21st-century American Jews
  • 21st-century American LGBTQ people
  • 21st-century American businesspeople
  • 21st-century American philanthropists
  • American LGBTQ businesspeople
  • American billionaires
  • American businesspeople in information technology
  • American computer programmers
  • American people of Polish-Jewish descent
  • Artificial intelligence industry in the United States
  • Artificial intelligence people

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