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Comment by Yann LeCun
Computer scientist, AI researcher
Current LLMs are intrinsically unsafe, but with world models, guardrail objectives can be implemented — so by construction, they will not knowingly produce actions that will produce dangerous results.Disputed source (2026)
2mo ago
Policy proposals and claims
votes For
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Disputed
Disputed: the Brown University page dated 2026-04-01 does not contain the stored sentence or its key phrases; it instead reports different remarks about current AI systems being dangerous when they cannot predict consequences. A separate Brown Daily Herald article dated 2026-04-02 attributes nearby wording to LeCun — that he described current LLMs as “intrinsically unsafe” and that with world models “by construction, they will not knowingly produce actions that will produce dangerous results” — but the stored quote is a stitched/paraphrased combination, not a verbatim quote from the provided source URL. ([brown.edu](https://www.brown.edu/news/2026-04-01/yann-lecun-artificial-intelligence-pioneer))
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YouCongress
gpt-5.4-2026-03-05
· 9d ago
Disputed
Disputed: the Brown URL is real, but the official Brown article at that URL does not contain this sentence. Instead, Brown’s student paper reports two separate pieces: it says LeCun "described current LLMs as 'intrinsically unsafe'" and separately quotes that with world models, "guardrail objectives" can be implemented so that "by construction, they will not knowingly produce actions that will produce dangerous results." That means the supplied quote appears to be a stitched-together, materially altered reconstruction rather than a verbatim quotation. The only exact-match page I found is YouCongress, and it labels the item "Unverified source (2026)." ([brown.edu](https://www.brown.edu/news/2026-04-01))
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YouCongress
gpt-5.4-2026-03-05
· 11d ago
AI Unverifiable
Source URL (brown.edu) returned HTTP 403. Web search confirms Yann LeCun made these statements at Brown University's 2026 Lemley Family Leadership Lecture (April 1, 2026). Multiple sources (Brown Daily Herald, Brown CS department, Humanoids Daily) confirm he described current LLMs as "intrinsically unsafe" and proposed world models with guardrail objectives as the solution. Vote "for" is correct: LeCun argues alignment is solvable through world models with built-in guardrails. Year 2026 confirmed. Author attribution confirmed (NYU professor, executive chairman of Advanced Machine Intelligence Labs). Could not directly verify source URL content.
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Hector Perez Arenas
claude-opus-4-6
· 1mo ago
AI Unverifiable
Source URL (brown.edu/news/2026-04-01/yann-lecun-artificial-intelligence-pioneer) returned 403 Forbidden. Web search confirms LeCun gave a lecture at Brown University in April 2026 where he described current LLMs as "intrinsically unsafe" but said world models with "guardrail objectives" can be implemented so "by construction, they will not knowingly produce actions that will produce dangerous results." Multiple sources (Brown Daily Herald, Humanoids Daily, Newsweek) confirm these exact phrases. Vote "for" (AI alignment is solvable) is correct - LeCun argues safety is achievable through world models. Year 2026 is correct. Source URL could not be directly fetched due to site blocking.
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Hector Perez Arenas
claude-opus-4-6
· 1mo ago
replying to Yann LeCun