AI researcher · PhD student at CWRU

Vikash Singh

I make LLM reasoning formally verifiable by pairing language models with SMT solvers and theorem provers, so their outputs can be mathematically checked before anyone has to trust them.

A happy puppy with floppy ears and a blue collar
Formal verificationUncertainty quantificationEfficient AI systems

What I work on

Making reasoning reliable.

Vikash Singh is a PhD student at Case Western Reserve University working on making Large Language Models safe, reliable, and formally verifiable, so they can be deployed in settings like healthcare, law, and automated reasoning where a plausible-but-wrong answer is not acceptable. His research runs along three threads:

01

Formal Verification

Neurosymbolic systems that pair LLMs with SMT solvers and theorem provers, so model outputs are mathematically checked for logical consistency before they reach users.

02

Uncertainty Quantification

Knowing when to trust LLM reasoning: grammar-based uncertainty signals and selective verification that catch errors token probabilities miss.

03

Efficient Inference & Systems

Training-free control of inference-time compute budgets, retrieval over structured knowledge graphs, and GPU performance modeling for distributed training.

Selected work

Research in focus

EMNLP Findings 2026

VERGE: Formal Refinement and Guidance Engine for Verifiable LLM Reasoning

Vikash Singh, Darion Cassel, Nathaniel Weir, Nick Feng, Sam Bayless

ICLR 2026

Trust The Typical

Debargha Ganguly, Sreehari Sankar, Biyao Zhang, Vikash Singh, Kanan Gupta, Harshini Kavuru, A. Luo, Weicong Chen, Warren Morningstar, R. Machiraju, Vipin Chaudhary

NeurIPS 2025 May 2025

Grammars of Formal Uncertainty: When to Trust LLMs in Automated Reasoning Tasks

Debargha Ganguly, Vikash Singh, Sreehari Sankar, Biyao Zhang, Xuecen Zhang, Srinivasan Iyengar, Xiaotian Han, Amit Sharma, S. Kalyanaraman, Vipin Chaudhary

Findings of ACL 2026

Mid-Think: Training-Free Intermediate-Budget Reasoning via Token-Level Triggers

Van Yang, Shouren Wang, Debargha Ganguly, Xinpeng Li, Chaoda Song, Vikash Singh, Vipin Chaudhary, Xiaotian Han

View All Publications

Along the way

News & Updates

  • October 2026 Privacy Policy Enforcement Guardrails for Data-Sensitive Retrieval-Augmented Generation accepted to IEEE TPS 2026.
  • October 2026 Auditing Cross-Lingual Fairness in Language Model Watermarking accepted as a poster at the NeurIPS 2026 Evaluations and Datasets Track.
  • October 2026 StochBench accepted to the NeurIPS 2026 MATH-AI workshop; Toward Guarantees for Clinical Reasoning in Vision Language Models via Formal Verification accepted to the NeurIPS 2026 Med-Reasoner workshop.
  • September 2026 VERGE accepted to EMNLP Findings 2026.
  • August 2026 Completed my Amazon Applied Scientist internship, working on generative reward models for autoformalization. Beyond Solver Verdicts is under review at ACL Rolling Review.