not sure what you are saying here. i don’t see data showing hallucinations have been solved, as you are asserting.
@garymarcus
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Gemini-3-Pro Hallucinations Persist Despite Claims Study
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1. you have given me zero studies with whatever models you think are relevant supporting your claim that X LLMs no longer hallucinate.
2. Gemini-3-pro hallucinates in https://
arxiv.org/pdf/2603.21687 just a couple weeks ago
3. Turning this around into a question about my own use of models -
Recent Frontier Model Data Availability Questions
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its an older paper. do you have more recent data on frontier models you aren’t sharing?
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Benchmarks and hallucinations in reasoning models clarified
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that’s one particular benchmark that came up; not a universal claim by me (or anyone else AFAIK). compare “Gary mentioned a particular benchmark” that didn’t include reasoning models (true) with “no studies have indicated hallucinations within reasoning models” (false). you
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Bioweapon Concerns and AI Safety Risks Discussion
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they have themselves raised specific concerns about bioweapons and yet blundered forth. i do think they are the greatest liability.
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Gary Marcus Criticizes Gullibility Over AGI Claims
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the gullibility 🙄 https://t.co/WCWPBzMsM5
— Gary Marcus (@GaryMarcus) 6 avril 2026the gullibility 🙄 Chubby♨️ (@kimmonismus) I don't know what Sam Altman saw internally at OpenAI, but it seems that, according to their definition, AGI is here, and superintelligence is incredibly close. AI models that independently conduct scientific research and find novel solutions are already here, and their internal model appears to surpass everything seen before. — https://nitter.net/kimmonismus/status/2041151011289735573#m
→ View original post on X — @garymarcus, 2026-04-06 18:29 UTC
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Expert Claims About LLMs Memorization and Consciousness Challenged
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the man told me LLMs don’t memorize (framing a false dichotomy) and dozens of papers have shown him wrong since. he also said we would replace radiologists in 2021 or so and we haven’t. and sometimes he talks like LLMs are conscious. he is not the authority you think he is.
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AI Models Economic Incentives Bioweapons Risk
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1. I said partly, to be clear. 2. as noted, he could e.g., sign off on a version of GPT that enables a massive bioweapons attack that kills say 1%+ of the population. and might well sign off to try to make economic ends meet, despite the costs.
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Nvidia stock barely falls as Altman scandal emerges
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Nvidia is down a mere quarter point on news that their leading customer may be a socipath. I don’t think the market understands yet what @RonanFarrow and @andrewmarantz just had to say. Gary Marcus (@GaryMarcus) Sam Altman in a nutshell, @newyorker: — https://nitter.net/GaryMarcus/status/2041180511079747869#m
→ View original post on X — @garymarcus, 2026-04-06 17:36 UTC
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LLM Hallucinations Remain Unsolved, Scaling Risks Persist
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These results keep coming. @GaryMarcus was way ahead on calling out these problems and dangers. And we're at risk of baking these issues into systems we rely on. Lars Christensen (@MaMoMVPY) I am increasingly coming to this conclusion – there NO SIGNS the problems with hallucinations are getting solved. In fact if anything it is now spreading to coding and the use of agents where it is hidden and could led to serious problems down the road. Therefore we can't really scale LLMs. LLMs are very useful tools, but you need to know about the limitations. Most of the investments in LLMs today assumes away these limitations. — https://nitter.net/MaMoMVPY/status/2041031551182340218#m
→ View original post on X — @garymarcus, 2026-04-06 17:20 UTC