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Recognition

TIME 100 AI 2024 TIME 100 AI 2025

← Prometheans 100+

TIME 100 AI 2024 TIME 100 AI 2025

Meta CEO championing open-source Llama models and superintelligence AI

Mark Zuckerberg

CEO & Founder — Meta Founder (prior to Meta rebranding in 2021) — Facebook

Listen — profile

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Biographies

Careless People

A Cautionary Tale of Power, Greed, and Lost Idealism

Sarah Wynn-Williams 2025

Former Meta policy director's insider memoir exposing Facebook's global failures and Zuckerberg's choices.

Genius of Facebook

How Mark Zuckerberg and Social Media Changed the World

Dionna L. Mann 2022

Educational account of how Zuckerberg and Facebook transformed global communication and culture.

Facebook: The Inside Story

Steven Levy 2020

Steven Levy's comprehensive history reveals a company made in Zuckerberg's image.

Zucked

Waking Up to the Facebook Catastrophe

Roger McNamee 2019

Early Meta investor's critical memoir on Facebook's societal damage and Zuckerberg's accountability.

Mark Zuckerberg

A Biography of the Facebook Billionaire

Robin S. Doak 2016

A True Book biography covering Zuckerberg's creation of Facebook and his vision for the future.

Mark Zuckerberg and Facebook

Internet Biographies

Susan Dobinick 2013

Internet Biographies series account tracing Facebook from college prank (Facemash) to public company.

Mark Zuckerberg

Essential Lives

Marcia Amidon Lüsted 2012

Essential Lives biography examining Zuckerberg's family background, childhood, and creation of Facebook.

The boy billionaire

Mark Zuckerberg In His Own Words

Mark Zuckerberg, George W. Beahm 2012

George Beahm's quotation-based biography assembling Zuckerberg's own words and vision.

The Accidental Billionaires: The Founding of Facebook: A Tale of Sex, Money, Genius and Betrayal

Ben Mezrich 2010

Ben Mezrich's bestselling account of Facebook's founding and the friendship-turned-enemies story behind it.

The Facebook effect

The Inside Story of the Company That Is Connecting the World

David Kirkpatrick 2010

Veteran tech reporter's authorized corporate history of Facebook's rise and its global social impact.

Profile

Mark Zuckerberg is the founder and CEO of Meta, and — depending on who you ask — either the most important open-source advocate in AI or a latecomer who had no choice but to open-weight his way out of a strategic hole. Either way, the result is the same: Llama reset expectations for what you could run, fine-tune, and build on without begging a closed-model provider for API credits.

After the metaverse bet burned tens of billions and Reality Labs kept bleeding, Zuckerberg executed one of the sharpest corporate pivots in recent memory. Meta AI went from a sprawling research shop — FAIR, run by Yann LeCun, long skeptical of LLMs as the path to intelligence — to the engine of a company-wide strategy. Llama 1 leaked in early 2023, Llama 2 shipped with a commercial license, and by Llama 3 and 3.1 (the 405B model) Meta was releasing frontier-ish weights for free. That single decision shaped the entire open-weights ecosystem: Mistral, Qwen, DeepSeek, and countless fine-tunes exist in a world Zuck made viable.

In 2025 he went harder. Meta Superintelligence Labs was stood up with a nine-figure hiring spree, Alexandr Wang was brought in as Chief AI Officer via a $14B stake in Scale AI, and Zuckerberg personally poached researchers from OpenAI, Anthropic, and Google DeepMind with comp packages that reset industry norms. Capex guidance for AI infrastructure crossed $60B. Llama 4 shipped with mixed reviews — the open-source honeymoon cooled as licensing got more restrictive and benchmarks looked gamed — but Meta AI is now embedded in WhatsApp, Instagram, and Facebook, putting an assistant in front of roughly three billion people.

For developers, Zuckerberg matters because he’s the reason you can download weights at all. Whether that stays true — or whether Meta closes the gates once the strategic value of “open” runs out — is the question hanging over the next couple of model releases.

Key Articles & Papers

Open Source AI Is the Path Forward 2024 — The manifesto accompanying Llama 3.1's release. Zuckerberg argues open-source AI is good for developers, Meta, and the world — and lays out why closed models shouldn't be the default. LLaMA: Open and Efficient Foundation Language Models 2023 — The original Llama paper. Smaller, efficient models trained on public data — the release that accidentally kicked off the open-weights era after the weights leaked. Llama 2: Open Foundation and Fine-Tuned Chat Models 2023 — First Llama release with a commercial license. The paper that made building products on open weights legally viable for most companies. The Llama 3 Herd of Models 2024 — Technical report for Llama 3, including the 405B model — the first open-weights model in genuine frontier territory. Founder's Letter: Building the Next Computing Platform 2021 — The Meta rebrand announcement. Worth reading to understand how much the company has turned since — AI now eats the bets this letter was about.

Videos

Controversies

Cambridge Analytica (2018): Facebook allowed a third-party app to harvest data from ~87 million users, which was used for political profiling. Led to Zuckerberg’s Congressional testimony and ongoing regulatory scrutiny of Meta’s data practices.
Teen mental health & Section 230: Internal research leaked by whistleblower Frances Haugen showed Instagram’s harms to teen users were known internally. Meta has been sued by dozens of U.S. state attorneys general. Relevant to AI because the same engagement-optimization instincts now shape how Meta AI is deployed.
“Open source” labeling: The OSI and researchers have argued Llama’s license isn’t actually open source — it restricts commercial use above certain thresholds and doesn’t release training data. Critics call it “open-washing”; Meta has pushed back but hasn’t changed the license.
Talent poaching in 2025: The reported $100M+ offers to OpenAI and Anthropic researchers drew public pushback from Sam Altman and others, raising questions about whether buying a superintelligence team works.