Benchmarks and Evaluation
We develop the science of LLM evaluation, setting the standard for rigorous assessment and identifying hidden risks before they matter.
@ University of Oxford
Led by Prof. Adam Mahdi, our lab advances the science of AI evaluation, benchmarking, safety and security. Through rigorous empirical research, we study how LLMs and agentic systems reason, interact with humans and drive scientific discovery.

Prof. Adam Mahdi
Oxford Internet Institute, University of Oxford
Adam leads OxRML. The group studies how language models reason, how people work with them, and how agentic systems behave on real scientific and decision-making tasks.
Recognised by
The latest
From the lab
Papers accepted at ICML 2026!
OxRML at ICLR 2026
Ryan Othniel Kearns Wins MSc Thesis Prize
New Paper in Nature Medicine!
OxRML @ NeurIPS 2025
OxRML @ EMNLP 2025
Research Themes
We develop the science of LLM evaluation, setting the standard for rigorous assessment and identifying hidden risks before they matter.
From bias and toxicity to agentic misalignment, we study the full spectrum of AI risk and develop the technical and governance tools to address it.
We build agentic systems that automate scientific knowledge synthesis and discovery, with a focus on agents that are reliable, transparent and domain-grounded.
We run large-scale empirical studies on how people use AI for high stakes decisions, from healthcare and law to policy and beyond.
The work
A selection from the last eighteen months at ICML, NeurIPS, ICLR, EMNLP, and Nature Medicine. Each one measures something concrete about what current models do.

A benchmark that tells real navigation apart from stochastic search when agents work over document collections.
Ł Borchmann, J Van Landeghem, M Turski, S Padarha, RO Kearns, A Mahdi, et al.
Read the paper
LLM self-explanations are usually dismissed as unreliable. Measured the right way, they predict model behavior.

A benchmark for whether web agents can be socially engineered into abandoning the user's task. Today's agents fall for it.

A preregistered randomized study in Nature Medicine on how reliably LLMs serve as medical assistants for the general public.

A construct-validity audit of widely-used LLM benchmarks: what they claim to measure versus what they capture.

How LLM judges degrade across languages, modalities, and domains, and where the failure modes sit.

Direct Preference Optimization reduces toxicity. We trace where it acts, neuron by neuron.

Ask an LLM "what would change your answer?" and it looks like introspection. It is often confabulation.

A survey of multimodal ML in clinical practice, from data-fusion strategies through to deployment.

A benchmark that obfuscates orthography to strip memorised knowledge out of reasoning problems, showing how much "reasoning" was recall.
The people
DPhil students, MSc researchers, visiting fellows, and affiliates. We come from machine learning, statistics, clinical medicine, and policy.

Felix Krones
DPhil Student
Multimodal AI, digital health

Djavan De Clercq
DPhil Student
AI and food security, LLMs

Andrew M. Bean
DPhil Student
LLM evaluations, human–LLM interaction

Yushi Yang
DPhil Student
LLM & agentic post-training, AI alignment

Harry Mayne
DPhil Student
LLM interpretability, AI safety, LLM evaluations

Jessica Rodrigues
DPhil Student
Knowledge graphs, metascience

Guy Parsons
DPhil Student
Healthcare AI, digital health

Karolina Korgul
DPhil Student
AI safety, agentic AI

Ryan Othniel Kearns
DPhil Student
Science of evals, reasoning in LLMs

Shreyansh Padarha
DPhil Student
AI for science, AI safety, LLM evaluations

Mia Kussman
MSc Student
Human–LLM interaction, LLM evaluations
Caleb Tan
MSc Student
LLM evaluations, reasoning

Sebastian Petric
Visiting Policy Fellow
LLMs and financial time series

Tristan Naidoo
Research Affiliate
Public health AI, LLM evaluations

Josh Lawman
Entrepreneur in Residence
Research-to-product translation
Plus collaborators across the Oxford Internet Institute, the Department of Engineering Science, and the Big Data Institute.
Work with us
We pick collaborators with care. If you are building AI into a setting where being wrong has a cost, talk to us.
On-site sessions for product and ML teams on evaluation, safety, and agent reliability.
Half-day to multi-week formats. For teams shipping LLM products in healthcare, finance, retail, and government.
We work with engineering partners to turn lab work into tools other teams can run.
Evaluation harnesses, safety dashboards, agentic-research platforms. We build them with partners we trust, carrying the research methods through to the code.
Applied research collaborations with foundations, governments, and large companies.
Multi-year programmes: shared roadmaps, sponsored DPhil studentships, named labs.
Or just say hello
hello@oxrml.com