Michael Retchin

Building scientific intelligence. past: founding team @cellaritybio, ML researcher @Cornell, investor @pillar_vc, advisor @nucleateHQ

[Michael Retchin @MichaelRetchin]

@owl_posting Congrats!

[Sam Rodriques @SGRodriques]

We live in a golden age of biology. So why are people still dying from disease?

Because discovery and development move slower than they should.

Today, we’re partnering with Incyte to change that.

Kosmos is now the first agent that can compress months of drug development into weeks, from the earliest stages of scientific discovery through to FDA approval. @Incyte will be the first company to deploy it across their pipeline.

Work that used to take a team of scientists months now happens in weeks.

Patients can't wait, and neither can we.

[Alex Kesin @alexkesin]

Keytruda transformed cancer care and made Merck more money than any drug in history. It was also discovered by accident, and nearly out-licensed in 2010 for pocket change.

New Approved + exclusive interviews with the inventors and the Merck CMO who ran development:

[Elliot Hershberg @ElliotHershberg]

Come build Amplify Bio with us!

Digital Biology is a generational opportunity. We couldn’t be more excited about the technical founders we’ve already partnered with.

Recently, we shared the advisors we’ve added to help support them. And we’ve got some exciting news to share about our investment team soon, too.

Now, we’re looking for an outlier person to help create even more asymmetry for our founders. Come build the connectivity layer between the best technical founders, scientific minds, and pharma leaders with us!

[Michael Retchin @MichaelRetchin]

Achira is on track to achieve a real turning point in our scientific understanding of the universe: atomistic foundation models.

One of the most important emerging technologies today.

Join this team!

[Theofanis Karaletsos @Tkaraletsos]

Hiring AI/ML talent at @achira_ai to build world models for molecules

We're looking for scientists and research engineers who will join Achira's technical staff to join its mission to build microscopic world models.

As large scale AI models have matured and revolutionized our ability to intervene on the digital world, we are increasingly racing towards physical AI as the next frontier.

Achira builds foundation simulation models that will explictly model the microcosm on an atomistic level with a goal to deeply impact virtual chemistry in service of drug discovery and is marrying the best of deep learning/generative AI with physics, statistical mechanics, and quantum chemistry.

If you're up for the challenge to build at the frontier, come join us.

https://t.co/hpomrkdoH3

[Theofanis Karaletsos @Tkaraletsos]

Hiring AI/ML talent at @achira_ai to build world models for molecules

We're looking for scientists and research engineers who will join Achira's technical staff to join its mission to build microscopic world models.

As large scale AI models have matured and revolutionized our ability to intervene on the digital world, we are increasingly racing towards physical AI as the next frontier.

Achira builds foundation simulation models that will explictly model the microcosm on an atomistic level with a goal to deeply impact virtual chemistry in service of drug discovery and is marrying the best of deep learning/generative AI with physics, statistical mechanics, and quantum chemistry.

If you're up for the challenge to build at the frontier, come join us.

https://t.co/hpomrkdoH3

[Niko McCarty. @NikoMcCarty]

I've started writing my book: "Biology is a Burrito & Other Essays." It is an interactive and highly visual look into the beauty, speed, and complexity of a living cell.

I'm planning to print hardcover books while serializing the essays online. The first essay is now available at https://t.co/zzXL0NlFtv.

This was inspired by Stewart Brand's latest book, "Maintenance of Everything," which he developed in serialized form with @WorksInProgMag. One cool thing about that book was that he improved each chapter with reader comments before printing the physical copies!

I'll be doing the same with this book. If you send me feedback that improves the text, I'll credit you online and in the final print version. You can also sign up to get email updates when a new essay launches. Hope you enjoy!

[Dave Burke @davey_burke]

@arcinstitute is hiring a CTO. It may be the most important technical role in biology right now - and here's why I'm the one posting it.

This summer I'm transitioning from CTO to Strategic Advisor. When I left Android 18 months ago, I said I wanted to use AI to accelerate drug discovery. Joining Arc was how I put that into action - and the team has delivered: frontier AI x Bio models like Evo, STATE, and STACK, AI research agents like scBaseCount, the Virtual Cell Challenge, a TED Audacious grant, and world-class compute.

Given what my family has been through these past few years, a full-time operational role isn't the right fit right now. The mission still is, which is why I'm staying close as an advisor. Thanks to @skonermann, @pdhsu, and @patrickc for their partnership.

We need a cracked ML and technical leader - mission-obsessed, ready to architect the future of science. DMs open.

https://t.co/YkApAxp1b2

[Prachee Avasthi @PracheeAC]

🚨New job alert!

I’m looking for a strong scientist and operator that wants to expand their efforts to work closely with me on … well everything!

This spans my work at @ArcadiaScience as well as @AsteraInstitute. If you’re excited by the mission of our orgs, thrive in a fast-paced environment, and have a passion for science/open science/metascience, apply now!

https://t.co/bn8ZRHZoqr

[Michael Retchin @MichaelRetchin]

@andrewpannu Congrats on launching!

[Andrew Pannu @andrewpannu]

We're launching Sleuth today.

The intelligence platform for biopharma's highest-stakes decisions, in use at top companies in the world.

To celebrate, we broke down the Chinese landscape: 18K+ assets & a map of the strategic white space. RT + comment "Sleuth" for access.

[Nathan C. Frey @nc_frey]

pipeline-in-a-person (h/t @Prof_Oak_ for the concept) is one skilled biotech operator + a bunch of Claudes running a virtual biotech company. reach out if you want to help build this or pilot it.

[Michael Retchin @MichaelRetchin]

@KexinHuang5 Looks awesome. Congrats on launching!

[Kexin Huang @KexinHuang5]

I’ve spent the past decade building bio AI models—until now, training them meant years, huge cost, and teams spanning AI, biology, and infra.

Not anymore.

Introducing a new capability at Biomni Lab: now any scientist can create, fine-tune, pre-train, and optimize bio foundation models on their own datasets, just by describing what they want.

This is powered by a new feature called GPU-as-a-tool where we let AI agents launch and orchestrate GPU sandboxes.

In the video, we show that you can use prompt to:
- Fine-tune Borzoi for MPRA regulatory activity prediction
- Fine-tune scGPT on a H1 hESC perturb-seq data
- Fine-tune ESM2 for protein subcellular localization prediction
- Pre-train a protein language model from scratch on UniRef
- Build a novel multi-task ADMET model across 22 endpoints

Another big challenge once you’ve trained or have access to a model is actually using it productively. As it is embedded within Biomni Lab, it bridges that gap, letting you “ask the model” to identify and prioritize relevant biological insights directly.

Another exciting direction is lab-in-the-loop: scientists can design models, generate predictions, interpret results, and send them to the wet lab—all within one integrated biology environment.

This is a preview capability and we’re looking for beta testers. Sign up here for early access: https://t.co/mpxxeZPJ7l

Learn more about opportunities and limitations in our blog: https://t.co/hTDb4QhNBl

@phylo_bio

[Zeno Fox @zeno_fox]

https://t.co/bF5Q6bgQyv

[Sri Kosuri @srikosuri]

Really cool internship @OctantBio at the bleeding edge of building autonomous models to iteratively design, build, and test hundreds of thousands of small molecules to inhibit HPV, funded by the Gates Foundation. Apply now! https://t.co/NWuK0PUm9d

[Michael Retchin @MichaelRetchin]

@DavidSHolz ISEF 2015, won the computational biology category.

We trained LSTMs to predict microRNA interactions, then showed we could use this to slow liver cancer growth.

[Michael Retchin @MichaelRetchin]

@andrewwhite01 Congrats!

[Lan Jiang @lanjiang653]

It’s time to apply for the 2026 f(Lux) Fellowship.

The best ideas for a new approach to an old problem sometimes show up in dorm rooms, campus labs, and late-night group chats. Raw, ambitious, and years ahead of what most people are willing to fund.

Last year, through the first f(Lux) Fellowship, we took a bet on 13 undergrads building at the edges of what's possible. They came from @UCBerkeley, @UWaterloo, @Stanford, @MIT, and @Harvard. Our fellows spanned freshman to senior, with nearly half international.

Four have founded companies, four are early or founding employees at startups, and multiple fellows who met through f(Lux) are now building together.

The fields reshaping our future – computational biology, AI infrastructure, advanced materials, aerospace and defense – do not respect departmental boundaries, and neither do the best people building in them. They’re the ones turning sci-fi into sci-fact.

If you’re an undergrad running experiments nobody assigned you to, building tools to unblock your own research, or working on something your professor thinks is too early… this Fellowship is for you.

You’ll receive a $15,000 non-dilutive grant, dual mentorship from the Lux investment team and portfolio, and two all-expenses-covered retreats: a kickoff in New York and a closing Fellows Summit in September.

No incorporation needed. No polish required. Just genuine obsession and a problem worth solving.
Applications due by May 26th, 2026: https://t.co/63GPckJ6id

[Nicolai Ouporov @nicoup]

We are hiring a lot of former founders at @fleet_ai!

So much, that we have our own application. just hit me up if you are looking for your next big swing

https://t.co/Nb0ISQe1h8