Har Ashish Arora

// I want to understand how the world works.

I am a junior in Computer Science at the Indian Institute of Technology Delhi, broadly interested in machine learning, from LLM reasoning and its failure modes to molecular property prediction. I am at the University of Waterloo as an exchange student this Fall, and I'm an incoming Quantitative Research Intern at IMC Trading for the upcoming summer.

Previously, I was a Research Assistant at CLAN, Aarhus University with Prof. Akhil Arora, studying LLM understanding and reasoning, error correction, and hallucination mitigation via graph learning. I co-authored ReasonBENCH, an open-source benchmark of the variance and (in)stability of LLM reasoning. This visit is supported by a Danish Data Science Academy research grant of 15,000 DKK.

Previously, I worked at AIMES & DSIRe, IIT Delhi with Prof. Tarak Karmakar and Prof. Sayan Ranu, where I developed Dissolvr, an interpretable solubility prediction framework (ICML 2026), and SC3, a multi-solvent solubility benchmark with 101k+ measurements.

/* News */

/* Publications */

Dissolvr framework figure

Dissolvr: An Interpretable and Fast Framework for Aqueous and Organic Solubility Prediction

Vansh Ramani, Har Ashish Arora, Dhairya Kuchhal, Sayan Ranu, Tarak Karmakar

International Conference on Machine Learning (ICML) 2026, Seoul

A physically-constrained gradient-boosted framework using descriptor-based representations, solute-solvent interactions, and LLM-assisted explanations.

SC3 benchmark figure

SC3: The Multi-Solvent Solubility Challenge and Benchmark

Vansh Ramani, Har Ashish Arora, Dhairya Kuchhal, Sergei Tatarin, Lev Krasnov, Sayan Ranu, Tarak Karmakar

arXiv preprint, 2026

A multi-solvent benchmark of 101k+ measurements estimating an aleatoric floor of ε = 0.106 log S; evaluated 31 models across six families.

ReasonBENCH figure

ReasonBENCH: Benchmarking the (In)Stability of LLM Reasoning

Nearchos Potamitis, Vansh Ramani, Har Ashish Arora, Dhairya Kuchhal, Lars Klein, Akhil Arora

EIML Workshop @ ICML 2026

Measures variance across 12 models, 10 reasoning strategies, and 30 repeats per configuration; establishes a two-component noise taxonomy.

/* Experience */

Research Assistant
May 2026 - Jul 2026
CLAN, Aarhus University
Working with Prof. Akhil Arora on LLM understanding and reasoning, error correction, and hallucination mitigation via graph learning. Co-authored ReasonBENCH.
Researcher
Jul 2025 - May 2026
AIMES & DSIRe, IIT Delhi
Worked with Prof. Tarak Karmakar and Prof. Sayan Ranu. Developed Dissolvr, a solubility prediction model using physical constraints and learned interaction representations, and SC3, a multi-solvent benchmark against which 31 models were evaluated.

/* Beyond Research */

I served as Convenor of the Debating Society at IIT Delhi, used to write for the Board for Student Publications (Top Contributor, June 2025), and coordinate ML research at ARIES, the AI/ML club. For honors, coursework, projects, and skills, see my academics page; course notes and tutorials live on the resources page.