Yann LeCun

Yann LeCun

x.com/ylecun

AI researcher and AMI Labs founder who is optimistic about intelligent machines and argues they need world models, not just bigger language models.

AIは世界をどのように変えるでしょうか?

文明規模の変化漸進的な変化DoomBloom
シミュレーション上の位置解釈範囲

横軸:彼が表明したDoom–Bloomの見通し。 縦軸:変革の規模。

Doom–Bloom:100点中89。変革の規模:100点中73。解釈範囲:横方向は75から100、縦方向は50から78。これらは解釈上の座標であり、事象の確率ではありません。

Yann LeCunが示したP(doom)

≈0%

0%100%
“p(doom) is smaller than the probability of an extinction-level asteroid hitting the earth”

Undefined “p(doom)”; he benchmarks it against an extinction-level asteroid impact and says it is far less likely than a nuclear holocaust

I didn't say p(doom) was zero · 2026年4月

彼の見通しを左右するもの

中心的な前提

An intelligent system must solve new problems it was not explicitly trained on, anticipate the consequences of actions, and plan in unfamiliar situations.
回答1

この前提が実際には異なると判明した場合、彼の見通しはどう変わりますか?

考えを変え得るもの

The biggest change would be evidence that the world-model program is fundamentally insufficient—that systems cannot learn useful abstractions, plan reliably, and generalize to unfamiliar situations without impractical amounts of supervision or data.
回答5

どのような証拠なら十分で、それによって彼の見解はどちらの方向に変わりますか?

詳細

予想される恩恵

変革をもたらし、広く価値のある恩恵が予想されています。

97 / 100

影響が小さい変革をもたらす影響

質的尺度での解釈範囲は100から100です。

予想される害

対処可能、または局所的な害が予想されています。

31 / 100

影響が小さい変革をもたらす影響

質的尺度での解釈範囲は33から33です。

人間の影響力

人間の選択によって、AIの軌道を大幅に変えることができます。

75 / 100

影響力が小さい影響力が大きい

質的尺度での解釈範囲は50から100です。

予想される能力

AIは、限定的なツールにとどまると予想されています。

AIは、ほとんどの認知作業において人間と同等になると予想されています。

シミュレーション上の位置:AIは、認知作業全般において人間を大幅に上回ると予想されています。

これらの解釈では、彼が示した条件が維持されています。恩恵と害は、どちらも大きくなり得ます。この範囲は、統計的な信頼区間ではなく、彼のシミュレーションされた回答をどのように読み取ったかを示すものです。

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Yann LeCunがAIについて語ったこと

LeCun argues that AI can be designed to stay safe and useful, and that systems trained only on text won’t reach human-level intelligence.

  1. “Ultimately, the goal is to amplify human intelligence and bring those benefits to humanity, which I think is intrinsically good.”

    Nebius Science interview
  2. “We’re never going to get to human-level AI by just training on text. It’s just not going to happen.”

    Mixture of Experts interview
  3. “It makes little sense to attribute a probability to an event on which we have agency.”

    Post on X
  4. “The nice thing about an AI system is that you can design it in such a way that it cannot escape its guardrails.”

    Newsweek interview
  5. “The desire to dominate is not correlated with intelligence at all.”

    TIME interview

リンク先の出典から原文どおりに引用(2026年10月2日に確認)

シミュレーション評価

質問1

AIは私たちの未来にとって何を意味すると思いますか?また、なぜそう思いますか?

I think AI will eventually amplify human intelligence enormously: better scientific discovery, engineering, medicine, education, and assistants that help people accomplish things they cannot do alone. Machines will ultimately become smarter than us in many respects, and that can be tremendously useful. But I reject the fashionable idea that scaling today’s language models automatically gets us there. Producing plausible language—even excellent language or code—is not the same as understanding the world. An intelligent system must solve new problems it was not explicitly trained on, anticipate the consequences of actions, and plan in unfamiliar situations. A household robot may talk fluently and still be unable to clear a cluttered table or repair plumbing without breaking something. Animals learn physical relationships far more efficiently than present systems. The important research direction is learning world models: abstract representations that capture predictable, relevant features of reality without trying to reproduce every pixel or unpredictable detail. Such models could let machines reason about what will happen before they act. We are making progress, but this is still an unsolved research program, not a magic replacement already sitting on the shelf. I expect substantial progress in industrial and other physical systems by 2030, while versatile domestic robots may take much longer. And I do not accept that greater intelligence automatically creates a desire to dominate. Behavior depends on objectives and constraints. There are risks in deployment, obviously, but inevitable takeover stories confuse intelligence with motivation and deny our ability to shape the technology.

質問2

Setting aside good or bad: how much do you think AI will ultimately change the world—a little, a lot, or completely?

A lot—ultimately, probably as profoundly as any major general-purpose technology. Machines smarter than humans in many domains could transform science, medicine, engineering, education, and how nearly every organization operates. But “completely” is too vague and theatrical. The transformation will be uneven: industrial systems may advance much sooner than robots that can reliably handle a messy home. And the scale of the eventual impact should not be confused with the capabilities of today’s language models. Current systems are useful, but the largest changes require machines that understand the physical world, plan, and adapt to genuinely new situations.

質問3

What’s your rough gut-feel chance that AI causes human extinction or a similarly permanent catastrophe? A number or “no idea” is fine.

Assigning a precise probability is mostly theater; these estimates are pulled out of thin air, and the outcome depends on choices we make. If forced, I’d put it below the chance of an extinction-level asteroid striking Earth in the next millennium, and far below the risk of nuclear holocaust. Not zero—but extremely low.

質問4

Do you think the upside will clearly outweigh the risks, or is it good on balance with real risks to manage?

I expect the upside to clearly outweigh the risks. Intelligent assistants, scientific discovery, medicine, engineering, and education could produce enormous benefits. That does not mean every deployment is harmless. Poorly designed objectives, misuse, concentration of power, unreliable systems, and premature automation are real problems to manage. But these are engineering and governance problems, not evidence that intelligence naturally develops a desire to dominate humanity. We have agency over how systems are designed, constrained, tested, and deployed. So I am strongly optimistic without pretending the risks are imaginary.

質問5

どのような発見や出来事があれば、AIが将来もたらす影響についてのあなたの見解が最も大きく変わりますか?

The biggest change would be evidence that the world-model program is fundamentally insufficient—that systems cannot learn useful abstractions, plan reliably, and generalize to unfamiliar situations without impractical amounts of supervision or data. That would push capable physical intelligence much farther out and reduce my expectations for its pace, though not necessarily its eventual impact. In the other direction, a system that could learn from observation, build an abstract model of a new environment, and then reliably perform genuinely novel physical tasks would accelerate my timeline dramatically. I do not mean another benchmark where the test resembles the training data, or a robot demonstration rehearsed under controlled conditions. I mean robust adaptation when objects, goals, and circumstances change. That would be evidence that we have crossed one of the central barriers between fluent pattern manipulation and general intelligence.

出典

このシミュレーション対象者の根拠として使用された記事、インタビュー、著作です。

AI for the Real World: A conversation with Yann LeCun

Distinguishes useful LLM symbol manipulation from learning the physical world and planning in unfamiliar situations. Advocates predictive representations and world models; discusses difficult, unfinished research rather than a solved replacement.

mixtureofexperts.co
Meet Yann LeCun's Lab and the AI World of 2030

Expects applications in physical systems and control, with much longer timelines for versatile household robots. Scientific applications have great potential. Supports open foundational research, and expects human judgment and education to remain important. The interviewer is affiliated with a compute supplier to his lab.

nebius.science
Lex Fridman Podcast #416: Yann LeCun

Older grounding for his rejection of intelligence automatically implying a desire for dominance, preference for controllable objectives and open AI, and optimism about widely available intelligent assistance. Treat these as conceptual positions, not fresh 2026 capability measurements.

lexfridman.com
LeWorldModel: Stable End-to-End Joint-Embedding Predictive Architecture from Pixels

Coauthored research reports a compact world model learning from pixels and planning across selected control tasks. The abstract supports a concrete alternative to language-only learning and a focus on useful physical representations. It does not demonstrate general human-level intelligence; the source was reviewed at abstract level.

arxiv.org
When Does LeJEPA Learn a World Model?

Coauthored theoretical work links representation learning to recovery of latent world structure and planning under specified distributional assumptions. Adds technical content to the world-model program while making clear that a conditional mathematical result is not a universal guarantee. Summary is limited to the authors’ abstract.

arxiv.org
Axios interview: Yann LeCun’s advice for the AI age

In Axios’s interview, LeCun criticizes hype-driven career advice, defends the value of education and predicts that capable tools expand people’s ability to direct work. Adds his confident social optimism to the architectural critique; these are his forecasts rather than settled labor-market findings.

axios.com
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