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Richard Sutton – Father of RL thinks LLMs are a dead end

Dwarkesh PatelCited 6× on HN, 2025–2026
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interview · intermediate · 2025–2026 on HN

Dwarkesh Patel interviews Richard Sutton, reinforcement learning pioneer, Turing Award winner and author of The Bitter Lesson. Sutton argues LLMs are a dead end because they cannot learn on the job, and that continual learning from experience will require a n…

HN commenters cite it as the serious skeptic's case against LLMs reaching general intelligence, usually in debates about whether scaling is enough.

6 comments from Hacker News

@solumos2026-07 · in “It Still Can't Do My Job: Four Years of Moving Goalposts (2022–2026)”

Google's definition is sufficient[0]. I'd also go so far as to say that LLMs aren't even AI, but that can be a bit pedantic. I align with Richard Sutton's reasoning, in that LLMs (and GPT models more generally) aren't "intelligent" in the same way that RL models are[1]. [0] - link [1] - ▶ this video

@mbesto2026-07 · in “A $500 RL fine-tune of a 9B open model beat frontier models on catalog review”

This is basically the entire argument by Richard Sutton happening in real time: ▶ this video Right now, we keep creating new models with larger and larger weights and throwing hardware at it. His argument is that this is a dead end and ultimately we'll eventually go back to purpose fit algorithms like we've always done in the history of AI development.

@kbrkbr2026-05 · in “AI didn't delete your database, you did”

I think they are not actually intelligent. Fix all random seeds and other sources of randomness, and try the same prompt twice, and check how intelligent that looks, as a first approximation. On a more technical level very serious people have voiced doubts, for example Richard Sutton in an interview with Dwarkash Patel [1]. [1] ▶ this video

@j1mr10rd4n2025-11 · in “The Case That A.I. Is Thinking”

Geoffrey Hinton's recent lecture at the Royal Institute[1] is a fascinating watch. His assertion that human use of language being exactly analogous to neural networks with back-propagation really made me think about what LLMs might be able to do, and indeed, what happens in me when I "think". A common objection to LLM "intelligence" is that "they don't know anything". But in turn... what do biological intelligences "know"? For example, I "know" how to do things like write constructs that make complex collections of programmable switches behave in certain ways, but what do I really "understand"? I've been "taught" things about quantum mechanics, electrons, semiconductors, transistors, integrated circuits, instruction sets, symbolic logic, state machines, assembly, compilers, high-level-languages, code modules, editors and formatting. I've "learned" more along the way by trial and error. But have I in effect ended up with anything other than an internalised store of concepts and interconnections? (c.f. features and weights). Richard Sutton takes a different view in an interview with Dwarkesh Patel[2] and asserts that "learning" must include goals and reward functions but his argument seemed less concrete and possibly just a semantic re-labelling. [1] link [2] ▶ this video

@gsf_emergency_42025-10 · in “Bitter lessons building AI products”

Rich Sutton, the guy behind both "reinforcement learning" & "the Bitter Lesson", muses that Tech needs to understand the Bitter Lesson better: link Longer analysis: ▶ this video To (try and) summarize those in the context of TFA: builders need to distinguish between policy optimisations and program optimisations I guess a related question to ask (important for both startups and Big Tech) might be: "should one focus on doing things that don't scale?"