Ron Alfa

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Ron Alfa

Ron Alfa

@Ronalfa

CEO/Co-founder, @NOETIK_AI Decoding Cancer | Ex-@RecursionPharma $RXRX | @StanfordMed MD-PhD | @PDSoros | Build the Future

San Francisco, CA Katılım Şubat 2011
2.1K Takip Edilen5K Takipçiler
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Ron Alfa
Ron Alfa@Ronalfa·
Announcing OCTO-VirtualCell (vc) a multi-scale, multimodal transformer trained to predict gene expression for a virtual cell in cellular contexts within patient tissue samples. Complete wth the Celleporter demo app to explore the data! 1/
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Ron Alfa
Ron Alfa@Ronalfa·
The level of enthusiasm for our foundation models from teams that spend their days in the trenches of translational medicine is gratifying.
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Peter Koo
Peter Koo@pkoo562·
Abstract deadline for CSH Symposium on AI in Biology is next week, Mar 26! This frontier AI x Bio meeting will span many scales of biology, from proteins and genomes to cells, medicine, and agents, with 50+ invited speakers who are leaders in the field. meetings.cshl.edu/abstracts.aspx…
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Ron Alfa
Ron Alfa@Ronalfa·
It's hard to even imagine the true scale of impact for foundation models of human biology - transformative. And there are indicators we are on the timeline.
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Bo Wang
Bo Wang@BoWang87·
Had a fun + packed panel this morning at @NVIDIAGTC with @Prof_Lundberg, @Ronalfa, and Phil Lorenz. Hot takes flying on scaling laws in biology — but the love for 🦞 seems universal 😅 Huge shoutout to @DBBurkhardt for the fantastic moderation 🙌 Hopefully the recording will be made public soon.
Bo Wang@BoWang87

I'm joining an @NVIDIAHealth panel at #GTC2026 this March! @nvidia The topic is one I think about every single day. "Why bigger models alone aren't enough for biology — and how to design AI that truly understands living systems." Scale matters enormously. But what you scale is just as important as how much you scale. From scGPT — one of the first foundation models for single-cell biology — to BioReason, pushing the frontier of biological reasoning — to recently joining @Xaira_Thera to help build the Virtual Cell from the ground up. Every step has sharpened the same conviction: the architecture of the data matters as much as the architecture of the model. I'm looking forward to discussing this live with an incredible group: @Prof_Lundberg @Ronalfa, Phil Lorenz, and @DBBurkhardt If you're at GTC this March — come find us. --Wednesday, March 18 | 10:00–10:40 AM -- Register: nvda.ws/4u9KUue #GTC2026 #AI #Biology #VirtualCell #FoundationModels #Xaira

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Ron Alfa
Ron Alfa@Ronalfa·
Catch my panel with @BoWang87, Emma Lundberg, Philipp Lorenz, Daniel Burkhardt on bio x ai and scaling laws this morning at 10a at GTC. @NVIDIAHealth @NVIDIAAI
Ron Alfa tweet media
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Ron Alfa
Ron Alfa@Ronalfa·
@0xfrankly We have a virtual cell world model but all our data are patient tissues and we are entirely focused on simulating biology from spatial contexts. We don’t do any in vitro biology.
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Francesco
Francesco@0xfrankly·
@Ronalfa Is Noetik building a virtual cell as well?
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Alexia Bonatsos
Alexia Bonatsos@alexia·
LinkedIn is like @moltbook except the bots have humans post for them.
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Ron Alfa
Ron Alfa@Ronalfa·
@hoifungpoon Appreciate your work Hoifung. Congrats on the great pub in Cell. Let’s train a massive model on thousands of patients!
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Hoifung Poon
Hoifung Poon@hoifungpoon·
@Ronalfa As someone already pointed out in the replies, our training data comprises 40 million cells generated on whole slides, not TMAs. The GigaTIME paper has been published in Cell and the GigaTIME model is open-weight.
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Ron Alfa
Ron Alfa@Ronalfa·
Wow this is trained on 21 patients data in 1 cancer. 😬 For context we are training these types of models on almost 4,000 patients across all modalities paired. “Our training data comprises of data collected from 21 patients across different stages of lung adenocarcinoma.”
Satya Nadella@satyanadella

We’ve trained a multimodal AI model to turn routine pathology slides into spatial proteomics, with the potential to reduce time and cost while expanding access to cancer care.

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Ron Alfa
Ron Alfa@Ronalfa·
@ClarkPolner I think you just need enough quality data and modalities to generate strong representations of biology. I'm sure there are different paths to this. Also large diversity of tissue is important.
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Elizabeth Hudson
Elizabeth Hudson@ClarkPolner·
That much I knew; was thinking more about all the contextual data around the diseased tissue // how much (and profiled in what modalities and dimensions) do you think is necessary to get to the pt where you have a world model that gets you that unlock (or does disease alone do it?)
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Ron Alfa
Ron Alfa@Ronalfa·
Massive unlock for biology comes from LLM-powered agents reasoning and running virtual experiments with human bio world models.
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Ron Alfa
Ron Alfa@Ronalfa·
@ClarkPolner We generate the pretraining data from human tissues.
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owl
owl@owl_posting·
Reasons to be pessimistic (and optimistic) on the future of biosecurity owlposting.com/p/reasons-to-b… "It was such a fun read (if you can say that about an article on weapons)!" —a glowing review from an early reader this is (once again) the longest article I have ever published at 13,000 words. it involves interviews with 16+ researchers/VC's/policy folks in this field, and discusses basically every single facet of biosecurity that i could find. topics include: how machine-learning in rapid response therapeutic design may work, the financial status of the customer base of biosecurity startups, why agroterrorism feels extremely likely to me, and a lot more i admittedly started the essay pessimistic that this subject matters at all, and i end it surprised that it doesn't keep more people awake at night. im not a doomer about it all, but i can see how people become one. very grateful to the people who decide to spend their career (or some fraction of it) working here, and especially grateful to the ones who helped teach me about the subject
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