Hayden Housen

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Co-founder and CTO at Sonauto (YC W24), building an AI music editor that turns prompts, lyrics, and melodies into full songs in any style. Studied computer science at Cornell University. Previously, a software engineering intern at Vocode (YC W23) and an intern on the Machine Learning Team at Ada.

Researched unsupervised object discovery with Dr. Ellis as a sophomore and paraphrase identification (published in NeurIPS 2022) with Dr. Sernam Lim as a freshman. Researched automatic classroom lecture summarization using AI and deep learning in high school. Understands machine learning in production and full-stack web development. Developed a state-of-the-art neural text summarization system with 360+ stars on GitHub. Publishes guides for cybersecurity challenges. Enjoys running cross country in the fall and skiing in the winter.

This site was generated using HUGO from an open source theme via Netlify.

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Collection of Projects Created by Hayden


For this project, I was named a top 300 Regeneron STS scholar. Lecture2notes is a state-of-the-art system to summarize classroom lectures using machine learning.

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Models to perform neural summarization (extractive and abstractive) using machine learning transformers.

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Will I Have a Snow Day

The AI-powered snow day predictor. Simply enter your zip code and an advanced AI will calculate your chance of having a snow day for the next few days.

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Unsupervised Object Discovery

An implementation of several state-of-the-art machine learning models that discover objects in images without being told what an object is.

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PicoCTF 2019 Writeup

My solutions to the PicoCTF 2019 computer security competition. I scored 13,900 points (top 3.8%) during the competition but have since completed all the problems to reach 34,201 points.

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National Cyber Scholarship Competition 2021 Writeup

I was named a National Cyber Scholar with Honors for placing 23rd out of 3,277 (top 0.7%) in this cybersecurity competition.

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HH Personal Website

This website is hosted by Netlify and is generated using my own custom open source theme using Hugo.

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GPT Impostor for Discord

Impersonate your friends on Discord using the latest research in AI and machine learning. Originally developed during BigRed//Hacks @ Cornell.

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Advent of Code

My solutions to the Advent of Code 2020, 2021, and 2022 puzzles. Completed all challenges. Solutions written in Python.

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Speaker Change Detection

An implementation of a machine learning architecture that detects when the current speaker changes in an audio file.

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PicoCTF 2021 Writeup

My solutions to the PicoCTF 2021 computer security competition. I scored 5,440 points (top 1.1%) during the competition as a solo player and placed 25th among US Middle/High School students.

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PicoCTF 2022 Writeup

My solutions to the PicoCTF 2022 computer security competition. I scored 12,000 points (top 3.2%) during the competition as a solo player and placed 248th.

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HackTheBox CyberSanta 2021 CTF Writeup

Write-ups for various challenges from the 2021 HackTheBox 2021 Christmas CTF. Solved all web, crypto, and forensics puzzles.

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HackTheBox Machine Writeups

Write-ups and tutorials for various cybersecurity challenges from HackTheBox.

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A tool to automatically summarize documents using the BART Machine Learning Model.

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AI Respiratory Doctor Desktop App

A desktop app built with Electron that mimics the AI Respiratory Doctor web app.

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AI Respiratory Doctor

A flask web app template for use with machine learning projects. Currently contains complete example code to run a fully functional X-Ray diagnosis AI.

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Personal Server

I maintain a person server where I self-host applications such as Nextcloud, Guacamole, and more.

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FreeCodeCamp Collection

Completed about 400 hours of coursework. Built 10 front-end projects. Completed 347 coding challenges.

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Fruit Classifier with ML

Working towards research in Computer Vision. Learning about machine learning though Fast.ai ML course and Stanford CS231n online.

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Co-founder and CTO @ Sonauto (YC W24)

AI Music Generator/Editor

Sonauto is an AI music editor that turns prompts, lyrics, or melodies into full songs in any style. For example, in a few minutes with Sonauto you can make an original birthday song for your friend, sung by Frank Sinatra.

Jan 2024 – Present

Software Engineering Intern @ Vocode (YC W23)

Open-source tool to build voice-based LLM applications

  • Collaborated directly with founders as a pivotal engineer to shape Vocode’s pioneering AI-driven call automation solutions.
  • Demonstrated versatility as a fullstack developer by building the FastAPI backend, open-source self-hosted service (Python and asyncio), and frontend dashboard (Next.js), while also resolving issues and reviewing pull requests from the community.
  • Evaluated the latencies of multiple LLMs, speech-to-text APIs, and synthesis services to enhance Vocode’s performance.

May 2023 – Aug 2023

Undergraduate Researcher @ Cornell

Machine Learning and Artificial Intelligence Research

Sep 2021 – Present

Machine Learning Intern @ Ada Support

Improved Ada’s intent classification pipeline

  • Improved Ada’s production accuracy by 8% using only 3% of production data by developing a novel intent classification pipeline.
  • Conducted >60 experiments and trained >110 models to determine the most accurate methodology.
  • Experimented with knowledge transfer, unsupervised learning of sentence embeddings, multi-task learning, and contrastive losses in the context of transformers and support vector machines.

May 2022 – Aug 2022

Machine Learning Intern @ Ada Support

Improved multilingual understanding for Ada’s AI chatbots

  • Led the discovery and experimentation phases of a project to enable Ada chatbots to better understand non-English languages.
  • Wrote a data processing pipeline to efficiently clean and analyze 9 billion chat messages for machine learning models.
  • Researched novel techniques in multilingual intent prediction and cultivated skills in PyTorch, transformers, and pandas.

May 2021 – Aug 2021


Summarizing Lecture Videos by Classifying Slides and Analyzing Text

  • Created a state-of-the-art system to summarize classroom lectures using PyTorch, transformers (BERT), optical character recognition, speech to text, and convolutional neural networks. Source on GitHub. Learn more in the research paper.
  • Named a top 300 scholar in the 2021 Regeneron Science Talent Search, the nation’s oldest and most prestigious science and math competition for high school seniors.
  • Deployed ML pipeline in production via a full-stack website powered by Docker, Flask, Celery, Bootstrap, and Stripe.
  • More info on the project page.

Sep 2019 – Jan 2022


Open-Source Neural Summarization Library

  • Furthered research in neural-network text summarization with a focus on long document summarization. 310+ stars on GitHub.
  • 4.45x smaller than the state-of-the-art model but 94% as accurate at release. 10+ pre-trained models available.
  • Rewrote researchers' code with enhanced performance and a focus on code readability and thorough documentation.
  • More info on the project page.

Mar 2020 – Oct 2020

Cybersecurity Challenges

Ethical Hacking Skills

  • Placed 23rd (top 0.7%) in 2021 National Cyber Scholarship Competition.
  • Placed in top 3% on average in PicoCTF 2019/2021/2022 competitions. Wrote technical guides with over 94,000 views to document my learning and help others.
  • Continuously practicing cybersecurity principles by solving HackTheBox.com machines and publishing writeups.
  • Learned ethical hacking skills including web exploitation, cryptography, reverse engineering, and binary exploitation. Worked with popular tools included in Kali Linux.

Sep 2019 – Present


Deep Learning Fundamentals

  • Developed an understanding for advanced deep learning concepts by building several near state-of-the-art models and writing many machine learning functions from scratch.
  • Built AI Respiratory Doctor.

Sep 2018 – Jul 2019


Awarded Front End Development Certificate

  • Completed about 400 hours of coursework.
  • Built 10 front-end projects (available on CodePen).
  • Completed 347 coding challenges.

Feb 2017 – Sep 2017


Cornell University

Bachelor of Science
Computer Science

Info: In the College of Engineering. President of the Cornell Cybersecurity Club.

2021-2025 (Expected Graduation)

Pawling Central High School

Advanced Regents Diploma with Honors
GPA: 4.0

Info: Always enrolled in highest level courses. Conducted research into machine learning & computer vision through Science Research program. Took every available computer science course.



  • Python
  • Java
  • JavaScript
  • HTML
  • CSS
  • SQL
  • OCaml
  • C
  • Bash
Machine Learning
  • PyTorch
  • transformers (BERT)
  • scikit-learn
  • NumPy
  • Lightning
  • pandas
  • OpenCV
  • Spacy
  • Flask
  • React Native (Expo)
  • Bootstrap
  • jQuery
  • web scraping
  • API design
DB and DevOps
  • MongoDB
  • PostgreSQL
  • MySQL
  • Docker
  • AWS
  • Firebase
  • CI/CD
  • Git