Sarath Chandar
sarath-chandar.bsky.social
Sarath Chandar
@sarath-chandar.bsky.social
Associate Professor at Polytechnique Montreal and Mila.
I am recruiting several graduate students (both MSc and PhD level) for Fall 2026! The application deadline is December 01. Please apply through the Mila supervision request process here: mila.quebec/en/prospecti....

More details about the recruitment process here: chandar-lab.github.io/join/
October 24, 2025 at 2:14 PM
At Chandar Lab, we are happy to announce the third edition of our assistance program to provide feedback for members of communities underrepresented in AI who want to apply to high-profile graduate programs. Want feedback? Details: chandar-lab.github.io/grad_app/. Deadline: Nov 01!
October 3, 2025 at 3:20 PM
We just made NovoMolGen easy to play with: Transformers-native checkpoints on the Hub and small notebooks that let you load, sample, and fine-tune in minutes. The few lines of code that load the model, plug in a reward, run a short RL finetune, and plot the curve.
September 8, 2025 at 4:07 PM
Molecules speak in atoms and bonds. LLMs can learn that language. Even with SOTA #denovo design, our largest molecular LLM study finds a plot twist: early saturation, weak scaling, and proxy metrics that mislead on real tasks! Led by Kamran and Roshan!
🧵 More in thread:
August 22, 2025 at 3:22 PM
I will be at @iclr-conf.bsky.social next week! If you are interested in any of these four postdoc positions, reach out to me via whova app so that we can meet during the conference!
In my lab, we have not one but four open postdoc positions! If you have strong research expertise and a PhD in LLMs and Foundation Models, and you are willing to learn about domain-specific problems and collaborate with domain experts, this is an ideal position for you! 1/2
April 18, 2025 at 1:57 PM
Reposted by Sarath Chandar
Join us on April 17th for Mila TechAide 2025! 🌟 Hear from amazing speakers in #AI like Sara Hooker, Kyunghyun Cho, Golnoosh Farnadi, David Adelani, Derek Nowrouzezahrai, and Tegan Maharaj. All proceeds support #Centraide. Let's make a difference together! 💡🤝

Get your tickets now! t.co/EBsatAqGTA
Mila Techaide 2025 | Mila
Conférence IA d'une journée au profit de Centraide du Grand Montréal
mila.quebec
April 12, 2025 at 10:46 AM
Reposted by Sarath Chandar
We have an amazing lineup of speakers, who will share their experience in deploying RL for power systems, industrial processes, nuclear fusion, logistics and more!
Consider submitting!
April 8, 2025 at 1:53 PM
Do you care about applying RL to real systems? You should consider attending our RLC 2025 workshop on RL for real systems!
Applying RL to a real system? Having insightful experience, new methods, reviews, analysis to share?
We are excited to announce the @rl-conference.bsky.social 2025 workshop on Practical Insights into RL for Real Systems!

rl4rs.github.io/RL4RS
Workshop on RL4RS
Workshop on on Practical Insights into RL for Real Systems.
rl4rs.github.io
April 8, 2025 at 2:06 PM
Reposted by Sarath Chandar
We know that policies learned through self-play can result in brittle, over-specialized strategies. But in our ICLR paper, we show that, provided the right representation and network architecture, self-play can learn generalizable cooperative policies! Congrats Arjun and Hadi for leading this work!
Can better architectures & representations make self-play enough for zero-shot coordination? 🤔
We explore this in our ICLR 2025 paper: A Generalist Hanabi Agent. We develop R3D2, the first agent to master all Hanabi settings and generalize to novel partners! 🚀 #ICLR2025 1/n
April 6, 2025 at 2:44 PM
Reposted by Sarath Chandar
Collaborative Multi Agent Reinforcement Learning is key for AI in the future. Check out R3D2, a generalist agent working on text-based Hanabi, accepted at ICLR 2025.

Website: chandar-lab.github.io/R3D2-A-Gener...
April 4, 2025 at 5:16 PM
Reposted by Sarath Chandar
Excited to share our ICLR 2025 paper: A Generalist Hanabi Agent!🎇
R3D2 agent plays all Hanabi settings at once and coordinates zero-shot with novel partners (Something SOTA LLMs can't do)—powered by flexible architecture that handle changing obs/action spaces. 🧵👇
Can better architectures & representations make self-play enough for zero-shot coordination? 🤔
We explore this in our ICLR 2025 paper: A Generalist Hanabi Agent. We develop R3D2, the first agent to master all Hanabi settings and generalize to novel partners! 🚀 #ICLR2025 1/n
April 4, 2025 at 5:15 PM
Can better architectures & representations make self-play enough for zero-shot coordination? 🤔
We explore this in our ICLR 2025 paper: A Generalist Hanabi Agent. We develop R3D2, the first agent to master all Hanabi settings and generalize to novel partners! 🚀 #ICLR2025 1/n
April 4, 2025 at 5:12 PM
In my lab, we have not one but four open postdoc positions! If you have strong research expertise and a PhD in LLMs and Foundation Models, and you are willing to learn about domain-specific problems and collaborate with domain experts, this is an ideal position for you! 1/2
March 21, 2025 at 2:49 PM
I gave a talk on developing efficient foundation models for proteins and small molecules at the Helmholtz-ELLIS Workshop on Foundation Models in Science (www.mdc-berlin.de/news/events/...) today.

If you are interested in my spicy takes on ML for Biology, continue reading this thread! 1/n
March 19, 2025 at 2:07 PM
I am excited to share that our BindGPT paper won the best poster award at #AAAI2025! Congratulations to the team! Work led by @artemzholus.bsky.social!
March 5, 2025 at 2:54 PM
2025 BERT is NeoBERT! We have fully pre-trained a next-generation encoder for 2.1T tokens with the latest advances in data, training, and architecture. This is a heroic effort from my PhD student, Lola Le Breton, in collaboration with Quentin Fournier and Mariam El Mezouar (1/n)
February 28, 2025 at 4:30 PM
Reposted by Sarath Chandar
Happy to share that one of my latest works has been accepted to AAAI25! BindGPT is a new foundational model for generative chemistry. It tackles various generative tasks, 3D molecule generation and 3D conformer generation, with a single model—something previously impossible. 1/2
bindgpt.github.io
February 27, 2025 at 4:59 PM
What's the foundational model for generative chemistry? Our work, BindGPT, is a good candidate, and it will be presented at #AAAI2025 today! We built a simple transformer language model that beats diffusion models by just generating 3D molecules as text! Led by
@artemzholus.bsky.social 1/n
February 27, 2025 at 3:52 PM