Ilya Sutskever

Ilya Sutskever FRS (born 1986) is an Israeli-Canadian computer scientist and artificial intelligence researcher who has made foundational contributions to deep learning. He is best known as a co-founder and former Chief Scientist of OpenAI, where he played a central role in developing GPT-3 and ChatGPT, and for his pivotal involvement in the 2023 attempt to remove Sam Altman as OpenAI's CEO.

With Alex Krizhevsky and his doctoral advisor Geoffrey Hinton, Sutskever co-invented AlexNet, the convolutional neural network that won the ImageNet Large Scale Visual Recognition Challenge in 2012 and is credited with igniting the modern deep learning revolution.

In June 2024, Sutskever founded Safe Superintelligence Inc. (SSI), a company focused exclusively on developing safe superintelligent AI systems. As of 2025, the company has raised over $3 billion and reached a valuation of approximately $32 billion.

Early life

Sutskever was born in 1986 into a Jewish family in Gorky (now Nizhny Novgorod), Russian SFSR, in the Soviet Union. At age five, his family made aliyah (immigrated to Israel) and settled in Jerusalem, where he lived until age 16.

He first encountered a computer at age five and became captivated by the possibilities of computing.

While still in middle school in Israel, Sutskever attended courses at the Open University of Israel from 2000 to 2002, demonstrating exceptional self-driven learning abilities.

When Sutskever was 16, his family immigrated to Canada.

Education

At the University of Toronto, Sutskever earned his Bachelor of Science degree in mathematics in 2005, his Master of Science degree in computer science in 2007, and his PhD in computer science in 2013 under the supervision of Geoffrey Hinton, a pioneer of deep learning research.

Sutskever has recalled that when he arrived at the University of Toronto as an undergraduate, he knew little about AI despite his fascination with computers. His introduction to neural networks came through his relationship with Hinton, who assigned him an early research project to improve the Stochastic Neighbor Embedding algorithm. Sutskever's success on this project initiated their long collaboration.

Fellow University of Toronto researcher Ruslan Salakhutdinov observed: "We all were working on this new deep learning sort of field, which was not very popular. Out of all of us, Ilya was the biggest believer in neural networks."

In 2012, Sutskever briefly conducted postdoctoral research with Andrew Ng at Stanford University. He then returned to Toronto and joined DNNResearch, a spinoff company created by Hinton that was subsequently acquired by Google.

Career

AlexNet and Google

In 2012, Sutskever, along with Alex Krizhevsky and Geoffrey Hinton, developed AlexNet, a deep convolutional neural network that won the ImageNet Large Scale Visual Recognition Challenge (ILSVRC) by a substantial margin. This victory is widely regarded as the breakthrough that launched the modern era of deep learning and established neural networks as the dominant approach in computer vision.

Following Google's acquisition of DNNResearch in 2013, Sutskever worked at Google Brain, where he continued his research on neural networks and sequence-to-sequence learning.

OpenAI

In December 2015, Sutskever left Google to become a co-founder and Chief Scientist of OpenAI, the artificial intelligence research laboratory established by Sam Altman, Elon Musk, and others. At OpenAI, he led research efforts that produced many of the organization's most significant achievements.

Sutskever oversaw the development of increasingly capable large language models, including GPT-2, GPT-3, GPT-4, and ChatGPT. His team also pioneered work on reinforcement learning from human feedback (RLHF), which became central to training AI systems to be helpful and harmless.

He also led OpenAI's Superalignment team, which focused on the challenge of ensuring that superintelligent AI systems remain aligned with human values and intentions.

Sam Altman firing controversy

On November 17, 2023, OpenAI's board of directors—which included Sutskever—abruptly fired CEO Sam Altman, citing a lack of confidence in his leadership and stating that he was not "consistently candid in his communications."

According to multiple reports, Sutskever was instrumental in Altman's removal. He had authored detailed memos to OpenAI's independent directors accusing Altman of "a consistent pattern of lying."

The tensions reportedly stemmed from multiple sources:

• Sutskever opposed Altman's efforts to seek billions from Middle Eastern sovereign wealth funds for AI chip development
• Altman had reduced Sutskever's role within the company in October 2023
• Fundamental disagreements existed about how rapidly to develop AI technology versus prioritizing safety research

The firing triggered chaos at OpenAI. More than 500 of the company's approximately 700 employees threatened to resign in an open letter if Sutskever and the other board members did not step down, with many threatening to follow Altman to a new AI unit at Microsoft.

Within days, Sutskever publicly expressed regret, posting on social media: "I deeply regret my participation in the board's actions."

In later testimony, Sutskever revealed that the board had explored merging OpenAI with rival Anthropic immediately after Altman's removal—a proposal Sutskever opposed. "I really did not want OpenAI to merge with Anthropic," he testified.

Altman was reinstated as CEO five days later on November 22, 2023, and the board was reconstituted without the members who had orchestrated his removal.

Departure from OpenAI

In May 2024, Sutskever announced his departure from OpenAI after nearly a decade with the company. Reports indicated that he had been effectively marginalized following the failed attempt to remove Altman, and had not returned to work after November 2023.

The Superalignment team Sutskever had led was dissolved following his departure. Jan Leike, the team's other co-leader, also resigned, citing an "erosion of safety and trust in OpenAI's leadership."

Safe Superintelligence Inc.

In June 2024, Sutskever founded Safe Superintelligence Inc. (SSI), a new AI company focused exclusively on developing safe superintelligent systems. He co-founded the company with Daniel Gross and Daniel Levy, with offices in Palo Alto and Tel Aviv.

In contrast to OpenAI's approach of releasing commercial products, Sutskever stated that SSI's "first product will be the safe superintelligence, and it will not do anything else up until then."

The company has attracted significant investor interest:

• September 2024: Raised $1 billion from Andreessen Horowitz, Sequoia Capital, DST Global, and SV Angel
• March 2025: Raised an additional $2 billion, reaching a reported valuation of $32 billion

Personal life

Sutskever maintains a very private personal life. There is no public information about whether he is married or has children. His relationship status has not been disclosed.

Awards and recognition

• 2022 – Elected a Fellow of the Royal Society (FRS)
• 2023 – Time 100 Most Influential People in AI
• 2024 – Time 100 Most Influential People in AI
• 2015 – MIT Technology Review 35 Innovators Under 35
• 2018 – Keynote speaker at Nvidia NTech and AI Frontiers Conference

Net worth

As of 2025, Sutskever's net worth is estimated at $30–40 million from his career earnings, though his equity stake in Safe Superintelligence Inc.—given the company's $32 billion valuation—may represent significantly more value on paper.

See also

• OpenAI
• Safe Superintelligence
• Geoffrey Hinton
• Deep learning
• AlexNet
• Sam Altman
• Artificial intelligence safety

External links

• Safe Superintelligence Inc. website