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Dr. Fei-Fei Li16 November 2025

The Godmother of AI on jobs, robots, and why world models are next

5Frameworks
16Insights

Episode overview

Dr. Fei-Fei Li traces modern AI from early machine learning and ImageNet’s large-scale labeled data through neural networks, GPUs, and today’s language models. She argues that current systems still lack major forms of spatial, scientific, and emotional intelligence, making continued innovation essential. The conversation introduces World Labs’ Marble, a generative world model for creating navigable 3D environments, and explores uses in creative production, games, robotics simulation, design, and research. Li closes by arguing that AI’s development, deployment, and governance should preserve human dignity and agency.

Key ideas

  • ImageNet helped establish the modern AI recipe of large datasets, neural networks, and GPU computation.
  • AGI is described as an imprecise marketing term; the scientific goal remains building machines capable of broader forms of thought and action.
  • Scaling current architectures is useful but insufficient because today’s AI lacks robust spatial reasoning, scientific abstraction, and emotional intelligence.
  • World models aim to create environments that agents and people can navigate, modify, reason within, and use for planning.
  • Robotics faces a data mismatch: web video does not directly provide the 3D actions robots must learn to perform.
  • Marble generates navigable 3D worlds and is already being explored for VFX, games, robotic simulation, design, and psychology research.
  • AI should augment people across occupations while keeping human dignity, agency, and responsible governance at its center.

Transcript available · source text is retained privately and is not published

Frameworks in this episode

People & resources mentioned

Attributed to the moment in the episode. Timestamps are approximate.

People · 18

  • Dr. Fei-Fei LiMentionsShe spearheaded ImageNet, served as chief AI scientist at Google Cloud, directed Stanford's AI lab, and co-created Stanford HAI.

    Today, my guest is Dr. Feay Lee, who's known as the godmother of AI.

  • Condoleezza RiceMentionsSuggested topics for the episode.

    A huge thank you to Ben Harowitz and Condisa Rice for suggesting topics for this conversation.

  • Lenny RachitskyMentionstoday we've got another very special compilation episode something I've been pulling on more and more with the podcast and the newsletter

    I'm excited to be here, Lenny.

  • Alan TuringMentionsPresented as an early AI thinker who asked whether machines could think and proposed a conversational test.

    Alan Touring was ahead of his time by in the 40s by asking daring humanity with the question can we is there thinking machines

  • Geoffrey HintonMentionsLed the Toronto research group whose 2012 ImageNet entry helped establish the modern deep-learning recipe.

    a group of Toronto researchers led by professor Jeff Hinton participated in imageet challenge

  • Isaac NewtonMentionsNewton he's like developed Newtonian physics and he developed like calculus and all these things

    someone like Isaac Newton look at the movements of the celestial bodies and and and derive an equation

  • Demis HassabisMentionsReferenced for an interview about testing AI against historical scientific breakthroughs.

    Demis had this really interesting interview recently from deep mind Google

  • Elon MuskMentionsWhether you like him or not, Elon, this is similar to his um if you watch him, he has sets these really ambitious goals

    Elon's like talking about world models. Jensen's talking about world models.

  • Jensen HuangMentionsIdentified as Nvidia's CEO and used to illustrate recognizing quality before results make it obvious.

    Elon's like talking about world models. Jensen's talking about world models.

  • Percy LiangMentionsStanford natural-language-processing researcher associated with early foundation-model research.

    I had pretty long conversations with my natural language processing colleagues like Percy Leang

  • Rosalind FranklinCoinedCaptured the X-ray diffraction photograph central to determining DNA’s structure.

    the X-ray defraction photo that was captured by Rosalyn Franklin

  • Sam AltmanMentionsthere's everybody has uh and had and continues to have like such deep trust in in Sam and Greg and our leadership team

    I remember Salman just tweeted as like here's a cool thing we're playing with. Check it out.

  • Chris DixonCoinedCredited with the observation that the next big thing often begins by feeling like a toy.

    I think it was Chris Dixon that had this line that the next big thing is going to start off feeling like a toy.

  • Ben HorowitzMentionsBen is the Z in A16Z, the world's largest venture capital firm with over $46 billion in committed capital.

    I reached out to Ben Horowitz who loves what you're doing.

  • Richard SuttonCoinedReinforcement-learning researcher credited with writing “The Bitter Lesson.”

    a paper written by Richard Sutton who won the touring award recently and he does a lot of reinforcement learning

  • Jeff DeanMentionsNamed among the people who attracted Fei-Fei Li to work at Google.

    I wanted to work with people like Jeff Dean, Jeff Hinton

  • Chris ManningMentionsStanford natural-language-processing researcher and HAI co-founder.

    professor Chris Manning back in 2018.

  • Charlie MungerCoinedHis words and documents were assembled into Poor Charlie's Almanack.

    I was reminded Charlie Mer had this quote, take a simple idea and take it very seriously.

Resources · 32

  • ImageNetCoinedother · Dr. Fei-Fei Li and collaborators

    She spearheaded the creation of ImageNet

  • Stanford Artificial Intelligence LaboratoryMentionsother

    She was director at Sale, Stanford's artificial intelligence lab

  • Google CloudMentionsproduct · Google

    She was chief AI scientist at Google Cloud

  • MarbleRecommendssoftware · World Labs

    Anyone can go play with this at marble.worldlabs.ai. It's insane. Definitely check it out.

  • FigmaUsessoftware · Figma

    When I was a PM at Airbnb, I still remember when Figma came out and how much it improved how we operated

  • Figma MakeRecommendssoftware · Figma

    Make codeback prototypes and apps fast with Figma Makeake. Check it out at figma.com/lenny.

  • JustworksUsescompany

    But with Just Works, it's super easy.

  • ChatGPTMentionssoftware · OpenAI

    a few years ago when JGBT came out.

  • Dartmouth WorkshopMentionsevent

    the Dartmouth workshop in the 1956

  • WordNetUsesother

    borrowing other researchers work like a linguist work on wordnet

  • ImageNetMentionsother · Dr. Fei-Fei Li and collaborators

    we open source that to the research community. We held an annual image net challenge

  • ImageNet ChallengeCoinedevent · ImageNet team

    We held an annual image net challenge to encourage everybody to participate in this.

  • NvidiaUsescompany

    used the imageet big data and two GPUs from Nvidia

  • Scale AICoinedcompany · Alex Wang and Lucy Guo

    He keeps sending me emails about how image that inspired scale.

  • AlexNetMentionssoftware · Alex Krizhevsky, Ilya Sutskever, and Geoffrey Hinton

    there's kind of these components that from ImageNet and AlexNet kind of took us to where we're today.

  • Google DeepMindMentionscompany · Google

    Demis had this really interesting interview recently from deep mind Google

  • GPT-2Mentionssoftware · OpenAI

    I remembered when GPT2 came out and that was in I think late 2020.

  • World LabsCoinedcompany · Dr. Fei-Fei Li, Justin Johnson, Christoph Lassner, and Ben Mildenhall

    And that's when we founded this company called World Labs.

  • CinchMentionscompany

    This episode is brought to you by Cinch, the customer communications cloud.

  • MarbleCoinedsoftware · World Labs

    Marvel is an app that's built upon our frontier models.

  • Middle-earthMentionsother · J. R. R. Tolkien

    you could just have a little sh world where you just infinitely walk around Middle Earth basically

  • The MatrixMentionsfilm · The Wachowskis

    It also makes me think about just the Matrix. Like, it's exactly the Matrix experience.

  • SonyUsescompany

    We collaborated with Sony and they use marble things to shoot those videos.

  • Princeton UniversityMentionsplace

    in at Princeton. But I I choose to chose to come to Stanford because I love Princeton. It's my alma mater.

  • Silicon ValleyMentionsplace · Mike Judge, John Altschuler, and Dave Krinsky

    the Silicon Valley ecosystem was so amazing that I was okay to take a risk

  • Stanford UniversityMentionsplace

    there are people who are so amazing at Stanford and the Silicon Valley ecosystem was so amazing

  • Stanford Institute for Human-Centered Artificial IntelligenceCoinedother · Dr. Fei-Fei Li and Stanford faculty collaborators

    HAI human center AI institute was co-founded by me and a group of faculty

  • New York TimesUseswebsite

    I actually wrote a piece in New York Times that year 2018

  • World LabsMentionscompany · Dr. Fei-Fei Li, Justin Johnson, Christoph Lassner, and Ben Mildenhall

    World Labs website is www.worldlabs.ai

  • Lenny's PodcastCoinedpodcast · Lenny Rachitsky

    You can find all past episodes or learn more about the show at lennispodcast.com.

  • Apple PodcastsRecommendssoftware · Apple Inc.

    you can subscribe to the show on Apple Podcasts, Spotify, or your favorite podcast app.

  • SpotifyRecommendssoftware · Spotify

    you can subscribe to the show on Apple Podcasts, Spotify, or your favorite podcast app.

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Insights & moments

The myth-busts, hot takes, explainers, and tools worth keeping.

Hot Take· 3

Hot Take06:30

Why She's an AI Optimist but Not a Utopian

Fei-Fei Li frames her optimism as humanist, not utopian: AI's impact on jobs and people is real, but the outcome is up to us. She sees technology as a net positive across the long arc of civilization, while insisting every technology is a double-edged sword that a careless society can misuse.

  • She rejects both doom and utopia; the outcome depends on human choices
  • Humans are a fundamentally innovative species that keeps improving its tools
  • Technology is a net positive but always a double-edged sword
  • Individuals, communities and society can 'screw this up' if they act irresponsibly

So, Lenny, let me be very clear. I'm not a utopian.

Fei-Fei Li · 06:30

So I do believe technology is a net positive for humanity.

Fei-Fei Li · 06:30
#ai-optimism#ethics#humanism#future-of-ai
Hot Take24:00

AGI Is a Marketing Term, Not a Scientific One

Li pushes back on the AGI hype, noting no one has really defined the term and that its definitions range from machine superpowers to economically viable agents. As a scientist she sees no meaningful distinction between AI and AGI, and suspects even Alan Turing would just shrug at the question.

  • No agreed definition of AGI exists; definitions vary wildly
  • Her north star has always been simply 'can machines think and do what humans do'
  • She won't go down the rabbit hole of AI vs AGI
  • Turing asked the same question in the 1940s

I don't know if anyone has ever defined AGI.

Fei-Fei Li · 24:00

I feel AGI is more a marketing term than a scientific term.

Fei-Fei Li · 25:30
#agi#hype#definitions#hot-take
Hot Take47:30

The Brain Runs on 20 Watts — Dimmer Than a Lightbulb

Asked whether the work gives her awe for the brain, Li points out the human brain operates on about 20 watts — dimmer than any lightbulb in the room — yet does extraordinary things. The deeper she goes into AI, the more she respects humans.

  • The human brain runs on roughly 20 watts
  • That's dimmer than a lightbulb, yet capable of enormous cognition
  • It took a half billion years of evolution to produce that power
  • Working in AI increases her respect for human intelligence

We we operate on about 20 watts. That's dimmer than any light bulb in in the room.

Fei-Fei Li · 47:30

the more I work in AI, the more I respect humans.

Fei-Fei Li · 48:00
#neuroscience#brain#awe#human-intelligence

Explainer· 4

Explainer27:00

What Today's AI Still Can't Do (That a Toddler Can)

Li argues we're far from done innovating by naming concrete gaps: current models can't reliably count the chairs in a video of office rooms — something a toddler manages. Nor can AI derive Newton-style physical laws from data, or match the emotional intelligence of a mentor talking a student through their motivation.

  • AI struggles to count chairs in a video — a task a toddler can do
  • It cannot derive Newton's laws of motion even given modern celestial data
  • It lacks the emotional and cognitive intelligence of a real mentoring conversation
  • No serious scientific discipline has ever declared itself done innovating

ask the the model to count the number of chairs. And this is something a toddler could do

Fei-Fei Li · 27:30

that level of creativity extrapolation abstraction we have no way of enabling AI to do that today.

Fei-Fei Li · 28:00
#ai-limitations#spatial-intelligence#reasoning#emotional-intelligence
Explainer34:30

What a World Model Actually Is

Li explains that unlike a chatbot, a world model lets anyone generate a world in their mind's eye from an image or sentence — and then interact with and reason inside it. It's a foundation for browsing, picking up objects, changing things, or, for a robot, planning a path to tidy a kitchen.

  • You prompt with an image or sentence and get an explorable world
  • You can navigate, pick up objects, and change things inside it
  • A robot consuming the output could plan a path and act in the world
  • It's a foundation to reason, interact, and create worlds

this model can allow anyone to create any worlds in their mind's eye by prompting whether it's an image or a sentence and also be…

Fei-Fei Li · 35:00

world model is a a foundation that that you can use to reason, to interact, and to create worlds.

Fei-Fei Li · 35:30
#world-models#spatial-intelligence#robotics#world-labs
Explainer42:30

Why the 'Bitter Lesson' Alone Won't Crack Robots

Li explains that language models enjoy a perfect setup — words in, words out — while robots must output actions in 3D worlds that training data barely captures. Worse, robots are physical systems closer to self-driving cars than to LLMs, and even self-driving took 20 years despite being 'simpler' robots that never have to touch anything.

  • Language models have perfect alignment: word training data, word outputs
  • Robots need actions in 3D worlds, but training data lacks those actions
  • Teleoperation and synthetic data are needed to fill the gap
  • Robots are physical systems, closer to self-driving cars than to LLMs
  • Self-driving cars took ~20 years and are 'simpler' robots that avoid touching anything

You hope to get actions out of robots. But your training data lacks actions in 3D worlds.

Fei-Fei Li · 43:30

self-driving cars are much simpler robots. They're just metal boxes running on 2D surfaces. And the goal is not to touch anything.

Fei-Fei Li · 46:00
#bitter-lesson#robotics#self-driving#training-data
Explainer57:30

How World Models Differ From Video AI (Plato's Cave)

Li distinguishes World Labs' work from video generators like Veo using Plato's allegory of the cave: vision is the task of making sense of a 3D or 4D world from flat 2D projections. Spatial intelligence is deeper than creating flat video — it's the ability to create, reason within, and interact with genuinely spatial worlds.

  • The world is not something you passively watch pass by like video
  • Plato's cave: vision means reconstructing a 3D/4D world from 2D projections
  • Spatial intelligence is deeper than generating flat 2D video
  • World Labs also shipped real-time video generation on a single H100 GPU
  • Marble gives creators worlds with real 3D structure to work with

the world is not passively watching videos passing by, right?

Fei-Fei Li · 57:30

spatial intelligence to me is deeper than owning creating that flat 2D world.

Fei-Fei Li · 59:00
#world-models#video-generation#spatial-intelligence#plato

Story· 4

Story17:30

How ImageNet and the 'Golden Recipe' Sparked Modern AI

Li recounts building ImageNet from 2006-07 by curating 15 million labeled images across a 22,000-concept taxonomy, then open-sourcing it via an annual challenge. The 2012 breakthrough came when Jeff Hinton's Toronto team combined ImageNet's big data, a neural network, and two Nvidia GPUs into the 'golden recipe' still underlying ChatGPT today.

  • ImageNet curated 15 million internet images across a 22,000-concept taxonomy borrowed from WordNet
  • She conjectured big data was the critically overlooked ingredient for AI
  • 2012: Hinton's Toronto team used ImageNet data plus two Nvidia GPUs to crack object recognition
  • The trio of big data, neural networks and GPUs is still the core of ChatGPT-era AI

We curated very carefully 15 million images on the internet. Created a taxonomy of 22,000 concepts

Fei-Fei Li · 18:00

that combination of the trio technology uh big data neuronet network and GPU was kind of the golden recipe for modern AI

Fei-Fei Li · 19:00
#imagenet#deep-learning-history#big-data#gpus
Story21:30

When Calling Yourself an 'AI Company' Was a Death Knell

Li recalls that as recently as 2015-16, some tech companies avoided the word 'AI' because they weren't sure it was a dirty word. She encouraged everyone to embrace it, and by roughly 2017 companies began branding themselves as AI companies — a stark contrast to today when you can't not call yourself one.

  • In 2015-16 some tech companies avoided the term 'AI' entirely
  • Li pushed people to use it, proud of it as one of humanity's most audacious questions
  • By ~2017 Silicon Valley marketing began calling companies 'AI companies'
  • Less than a decade later, not calling yourself an AI company is unthinkable

some tech companies avoids using the word AI I because they were not sure if AI was a dirty word.

Fei-Fei Li · 21:30

2017ish was the beginning of companies calling themselves AI companies

Fei-Fei Li · 22:00
#ai-history#branding#silicon-valley
Story51:00

The 'Dots' Loading Effect Users Love Was Intentional

Lenny praises the dotted point-cloud visualization you see before a Marble world renders. Li reveals it's an intentional visualization the engineers designed to guide people into the world — not part of the model itself — and she was delighted to learn how many users find the experience magical.

  • The dot/point-cloud effect before rendering is an intentional design feature
  • It is not part of the model — the model just generates the world
  • Engineers built it to guide users into the world and converged on the dots
  • Many users, not just Lenny, found the experience delightful

the dots that lead you into the world was a an intentional feature uh visualization. It is not part of the model.

Fei-Fei Li · 51:30
#marble#product-design#ux#world-labs
Story53:00

Marble in the Wild: 40x Faster VFX, Robot Sims, and Therapy

Li shares early Marble use cases: a Sony virtual-production team cut their VFX shoot time by 40x, researchers are generating synthetic environments to train robots, and — unexpectedly — a psychology team wants immersive scenes for psychiatric research. Lenny connects the last one to exposure therapy for phobias like heights.

  • A Sony virtual-production collaboration cut shoot time by 40x
  • Robotics researchers use it to generate diverse synthetic training environments
  • A psychology team reached out to create immersive scenes for patient research
  • Potential exposure-therapy applications for phobias (heights, snakes, spiders)

they were saying this has cut our uh production time by uh 40x.

Fei-Fei Li · 53:30

a psychologist team called us to use marble to do psychology research.

Fei-Fei Li · 55:30
#marble#use-cases#vfx#robotics#exposure-therapy

Tool· 1

Tool48:00

Marble: The First 'Prompt-to-Worlds' Product

Li introduces Marble, World Labs' first product, built on a frontier model that took over a year to create and outputs genuinely 3D worlds. Users prompt with a sentence, image, or multiple images and get navigable worlds — even walkable in VR goggles — which she calls 'prompt to worlds.'

  • Marble is built on World Labs' frontier spatial-intelligence model
  • It took over a year to build a model that outputs genuinely 3D worlds
  • Prompt with a sentence, image, or multiple images to create a world
  • Worlds are navigable and even walkable in VR goggles
  • Available at marble.worldlabs.ai

We've spent a year and plus building the world's first uh generative model that can output genuinely 3D worlds.

Fei-Fei Li · 49:00

it's the world's first uh product that allows people to just uh prompt we call it prompt to worlds.

Fei-Fei Li · 50:30
#marble#world-labs#product-launch#3d-worlds

Takeaway· 4

Takeaway07:30

There's Nothing Artificial About AI

Li reflects on the line she delivered to Congress and repeats to every graduating student: the field is called artificial intelligence, but there is nothing artificial about it. It is inspired by, created by, and most importantly impacts people.

  • AI is inspired by people, created by people, and impacts people
  • She reminds every graduating student of this framing
  • The framing reframes AI as a human endeavor, not a machine one

your field is called artificial intelligence but there's nothing artificial about it.

Fei-Fei Li · 08:00
#ai-philosophy#human-centered-ai#quotable
Takeaway1:05:30

Intellectual Fearlessness: The Throughline of Her Career

Asked how she kept landing at the centers of AI breakthroughs, Li credits intellectual fearlessness — the same quality she now hires for. She left a near-tenure position at Princeton to restart the clock at Stanford, joined Google to work with the best, and founded World Labs, refusing to overthink everything that could go wrong.

  • She hires young people for intellectual fearlessness and courage
  • Making a difference means diving into something new that people haven't done
  • She gave up a near-certain tenure track at Princeton to move to Stanford
  • She doesn't dwell on failure cases; she focuses on people and mission
  • 'I don't overthink all possible things that can go wrong because that's too many'

I'm I'm an intellectually very fearless person and I have to say when I hire young people I look for that

Fei-Fei Li · 1:06:00

I don't overink of all possible things that can go wrong because that's too many.

Fei-Fei Li · 1:08:00
#career#risk-taking#hiring#mission
Takeaway1:08:30

Advice to Young Talent: Optimize Passion, Not Every Variable

Li worries that young AI talent over-analyzes every dimension of a job offer. Slipping into mentoring mode, she urges candidates to focus on what actually matters — passion, mission alignment, faith in the team, and the impact and people they'll work with — rather than every minute variable.

  • Young candidates often weigh every single aspect of a job decision
  • She finds herself in mentoring mode, not just recruiting mode
  • The most important questions: where's your passion, do you align with the mission, do you trust the team
  • Focus on the impact you can make and the people you'll work with

where's your passion? Do you align with the mission? Do you believe and have faith in this team?

Fei-Fei Li · 1:09:30
#career-advice#hiring#mission#young-talent
Takeaway1:14:30

Everybody Has a Role in AI

Closing out, Li answers the question she hears everywhere — does a musician, nurse, farmer, or accountant have a role in AI? — with a resounding yes. She argues no technology should take away human dignity, and that dignity and agency must sit at the heart of how AI is developed, deployed, and governed.

  • Everyone — artists, nurses, farmers, teachers — has a role in AI
  • No technology should take away human dignity or agency
  • Dignity and agency must anchor AI's development, deployment, and governance
  • She wants healthcare workers augmented by AI as society ages
  • Silicon Valley too often talks past ordinary people with abstractions

Everybody has a role in AI.

Fei-Fei Li · 1:15:30

no technology should take away human dignity and the human dignity and agency should be at the heart of the development, the deployment as well…

Fei-Fei Li · 1:16:00
#future-of-work#human-dignity#ai-ethics#human-centered-ai