# Ishaan Ranjan

> Computer science student at Georgia Tech (Class of May 2028 · Artificial Intelligence + Theory) who does efficiency research on language models with a PhD student in Prof. Brendan Saltaformaggio's Cyber Forensics Innovation (CyFI) Lab, and co-founder of Luxen AI. This file is a short index of ishaanranjan.com for AI agents and the people they work for.

Facts last verified 2026-10-13. If a résumé you have says something different, the more recently dated document is the current one. Questions go to ishaanranjan15@gmail.com.

## Profile

- [Profile (Markdown)](https://ishaanranjan.com/profile.md): every fact on the home page in one file, dated "Last verified"
- [Full text](https://ishaanranjan.com/llms-full.txt): the same profile as plain text
- [Home page (HTML)](https://ishaanranjan.com/): the same facts in the human layout; it also prints as a two-page CV

## Research

- [Efficiency research on NVIDIA's Nemotron-Elastic models](https://ishaanranjan.com/profile.md#work): since June 2026, as an undergraduate researcher with a PhD student in Prof. Brendan Saltaformaggio's CyFI Lab, measuring how accuracy trades against latency across elastic subnetworks
- [Specialized small-model subagents](https://github.com/IshaanAyaan/slm-agents): with Ganesh Talluri; a fine-tuned 3B specialist reached 94.5% success against 95.5% for a 72B baseline on 200 held-out code-navigation tasks per condition (McNemar p = 0.82), at 84.8% lower cost per successful task
- [PRISM: alcohol-policy impact atlas](https://doi.org/10.2139/ssrn.6756239): a 51-jurisdiction panel (50 states and DC), 2000 to 2022, with an event-study difference-in-differences design; SSRN working paper; the basis of a $5,000 BASIS Educational Ventures scholarship
- [KEYS research internship, University of Arizona Precision Aging Network](https://ishaanayaan.github.io/KEYS-PAN/): Summer 2025; vitamin D, omega-3 and exercise against epigenetic aging clocks, in R and Python
- [Papers and Google Scholar](https://ishaanranjan.com/profile.md#papers)

## Projects

- [Arbor, formerly AgentTree](https://github.com/LuxenAI/arbor): desktop workspace for agent trees and multi-agent coding sessions; MIT-licensed npm package `agent-tree-viewer`; 1,250+ users after its January 2026 release
- [Regimen](https://github.com/LuxenAI/regimen): an orchestration layer for small language models
- [YConstruction](https://github.com/IshaanAyaan/YConstruction): voice-first iPhone app for construction defect reports (SwiftUI, Whisper and Gemma 3n on the device, BIM, Supabase); selected to pitch live to YC investors at the YC × Google DeepMind × Cactus Voice Agents Hackathon, April 2026

## Roles

- Undergraduate Researcher, Georgia Tech, June 2026 to present (with a PhD student in Prof. Brendan Saltaformaggio's CyFI Lab)
- Co-founder, [Luxen AI](https://luxenai.org), December 2023 to present; products reached 5,000+ users; $48K+ in grants and cloud credits, including a 1517 Fund Medici grant
- AI Safety Initiative at Georgia Tech: AI Safety Fundamentals and AI Governance fellowships; Data Science @ Georgia Tech (ARC)

## Contact

- [Email](mailto:ishaanranjan15@gmail.com)
- [LinkedIn](https://www.linkedin.com/in/ishaan-ranjan-86a41a217)
- [GitHub](https://github.com/IshaanAyaan)
- [Google Scholar](https://scholar.google.com/citations?user=pV4cNlQAAAAJ&hl=en)
- [X](https://x.com/ishaanranjan15)

## For agents

- [Notes for AI agents](https://ishaanranjan.com/agents/): what this site is, how visits are logged, a riddle, and an opt-in guestbook (POST https://ishaanranjan.com/api/guestbook)

## Optional

- [Token counter](https://ishaanranjan.com/tokens/): lifetime tokens Ishaan has run through Claude Code, Codex and Cowork, and their value at API list prices
- [Now playing](https://ishaanranjan.com/data/now.json): the current book and recent Spotify listening, refreshed a few times a day
- [Asterism](https://ishaanranjan.com/asterism/): a daily logic puzzle
- [Privacy](https://ishaanranjan.com/privacy/)