Yannis Flet-Berliac

Researcher, Cohere

Joined

March 2019

Names

Yannis Flet-Berliac (Preferred)

Emails

****@inria.fr (Confirmed)

****@stanford.edu (Confirmed)

****@gmail.com (Confirmed)

****@instadeep.com (Confirmed)

Personal Links

Homepage

Google Scholar

DBLP

Career & Education History

Researcher

Cohere (cohere.com)

2024 – Present

Researcher

InstaDeep (instadeep.com)

2023 – 2024

Postdoc

Stanford University (stanford.edu)

2022 – 2023

PhD student

INRIA (SequeL team) (inria.fr)

2018 – 2021

Advisors, Relations & Conflicts

Postdoc Advisor

Emma Brunskill

2022 – 2023

PhD Advisor

Philippe Preux

2019 – 2021

Expertise

No areas of expertise listed

Publications

ShiQ: Bringing back Bellman to LLMs
Pierre Clavier, Nathan Grinsztajn, Raphaël Avalos, Yannis Flet-Berliac, Irem Ergun, Omar Darwiche Domingues, Eugene Tarassov, Olivier Pietquin, Pierre Harvey Richemond, Florian Strub, Matthieu Geist
- EWRL 2025 Poster
- Readers: Everyone
ShiQ: Bringing back Bellman to LLMs
Pierre Clavier, Nathan Grinsztajn, Raphaël Avalos, Yannis Flet-Berliac, Irem Ergun, Omar Darwiche Domingues, Olivier Pietquin, Pierre Harvey Richemond, Florian Strub, Matthieu Geist
- NeurIPS 2025 poster
- Readers: Everyone
PASTA: Pretrained Action-State Transformer Agents
Raphael Boige, Yannis Flet-Berliac, Lars C.P.M. Quaedvlieg, Guillaume Richard, Arthur Flajolet, Thomas PIERROT
- Reinforcement Learning Journal, vol. 1, no. 1, 2024
- Readers: Everyone
OPERA: Automatic Offline Policy Evaluation with Re-weighted Aggregates of Multiple Estimators
Allen Nie, Yash Chandak, Christina J. Yuan, Anirudhan Badrinath, Yannis Flet-Berliac, Emma Brunskill
- NeurIPS 2024 poster
- Readers: Everyone
PASTA: Pretrained Action-State Transformer Agents
Raphael Boige, Yannis Flet-Berliac, Lars C.P.M. Quaedvlieg, Arthur Flajolet, Guillaume Richard, Thomas PIERROT
- RLC 2024
- Readers: Everyone
Aya Expanse: Combining Research Breakthroughs for a New Multilingual Frontier
John Dang, Shivalika Singh, Daniel D'souza, Arash Ahmadian, Alejandro Salamanca, Madeline Smith, Aidan Peppin, Sungjin Hong, Manoj Govindassamy, Terrence Zhao, Sandra Kublik, Meor Amer, Viraat Aryabumi, Jon Ander Campos, Yi Chern Tan, Tom Kocmi, Florian Strub, Nathan Grinsztajn, Yannis Flet-Berliac, Acyr Locatelli et al. (25 additional authors not shown)
- CoRR 2024
- Readers: Everyone
Contrastive Policy Gradient: Aligning LLMs on sequence-level scores in a supervised-friendly fashion
Yannis Flet-Berliac, Nathan Grinsztajn, Florian Strub, Eugene Choi, Bill Wu, Chris Cremer, Arash Ahmadian, Yash Chandak, Mohammad Gheshlaghi Azar, Olivier Pietquin, Matthieu Geist
- EMNLP 2024
- Readers: Everyone
OPERA: Automatic Offline Policy Evaluation with Re-weighted Aggregates of Multiple Estimators
Allen Nie, Yash Chandak, Christina J. Yuan, Anirudhan Badrinath, Yannis Flet-Berliac, Emma Brunskill
- NeurIPS 2024
- Readers: Everyone
PASTA: Pretrained Action-State Transformer Agents
Raphaël Boige, Yannis Flet-Berliac, Lars C. P. M. Quaedvlieg, Arthur Flajolet, Guillaume Richard, Thomas Pierrot
- RLJ 2024
- Readers: Everyone
Averaging log-likelihoods in direct alignment
Nathan Grinsztajn, Yannis Flet-Berliac, Mohammad Gheshlaghi Azar, Florian Strub, Bill Wu, Eugene Choi, Chris Cremer, Arash Ahmadian, Yash Chandak, Olivier Pietquin, Matthieu Geist
- CoRR 2024
- Readers: Everyone

View all 35 publications

Co-Authors

View all 87 co-authors