Theofanis Karaletsos · Person in New York Tech

Overview

Theofanis Karaletsos is a co-founder at Achira [1]. Karaletsos maintains a presence on X (formerly Twitter) at @Tkaraletsos [2].

Career history

Co-FounderOct 2024 to PresentAchira
Angel InvestorFeb 2026 to Mar 2026Reasonable AI
Head of AI - ScienceFeb 2024 to Jan 2026Chan Zuckerberg Initiative
Angel InvestorFeb 2025 to Feb 2025Studio Atelico
Vice President of Advanced MLOct 2022 to Nov 2023insitro
Vice President of Data Science and Machine LearningNov 2021 to Sep 2022insitro
InvestorSep 2022 to Sep 2022Windscape AI
Staff Research ScientistAug 2020 to Nov 2021Meta

Education

TUDiplom, BioinformaticsTechnical University of Munich

In the news

Reposted Simon Barnett@TkaraletsosX · Sep 16, 2026
RepostedSimon Barnett@SimonDBarnettMolecular design tools are nowhere close to commoditization, have tremendous headroom left to improve, will generate substantial value for those who move the needle, and are clearly the bottleneck for a meaningful set of potentially high-value targets. https://t.co/yGJMSSNY8V
Our perspective on “Fifteen challenges for generative AI applications to cell biology” is now out in Cell, led by @califano_lab . It was a pleasure to brainstorm through this with a great group of people. What we tried to do is list a few key challenges worth working on we see@TkaraletsosX · Aug 18, 2026
QuotedCalifano Lab@califano_labhttps://t.co/pdeRAoKkgO Fifteen challenges for generative AI applications to cell biology our new perspective paper is online at Cell!
Reposted Stephan Mandt@TkaraletsosX · Jul 4, 2026
RepostedStephan Mandt@StephanMandtWhat diffusion guidance should *really optimize: the Bayesian posterior. #ICML2026
Keep calm and apply Bayes' Rule.@TkaraletsosX · Jun 27, 2018

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