Hackathons·5 wins and placements·4th overall, ElevenHacks Season 1
Five wins and placements, 4th overall in ElevenHacks Season 1, and every other hackathon build I have written up, with the date, the result, and links to the write-up and the code.
Anirudh Vasudevan is a 5x hackathon winner. He placed Top 10 at the Y Combinator AI Hackathon with LARK, won ElevenHacks (Stripe x ElevenLabs) with Living Photos, took 2nd Place at the ElevenLabs x Replit Hackathon with FaceTime from Mars, took 3rd Place at ElevenHacks (ElevenLabs x Zed) with Apartment 4B, and won Best Voice Agent at the ElevenLabs x Firecrawl Hackathon with ScreenSense. In ElevenHacks Season 1 he submitted a project to all 11 hacks and finished 4th overall.
I like building a whole product in a weekend and putting it in front of judges. Most of these builds use voice AI: an agent you talk to, a game you play out loud, or a browser you control by speaking. "Entry" means I built and entered the project and no placement is recorded for it.
Top 10
Y Combinator AI Hackathon
An MCP gateway and phone-style widget that lets ChatGPT and Claude place calls, play music, search YouTube, and message other AI agents.
I built the gateway and the widget; a teammate built the backend MCP servers.
2nd Place
ElevenLabs x Replit Hackathon
Push-to-talk voice calls with three AI colonists living on Mars in 2159, through a space-radio filter and a 3D camera that swings from Earth to Mars.
3rd Place
ElevenHacks, ElevenLabs x Zed
A first-person lo-fi horror mystery game built in 36 hours, with every voice line, scream and music cue generated ahead of time so the site needs no server.
Winner
ElevenHacks, Stripe x ElevenLabs
Turns one old photograph into a walkable 3D Gaussian-splat scene, with a consent-cloned voice speaking inside it.
Best Voice Agent
ElevenLabs x Firecrawl Hackathon
A Chrome extension that turns spoken commands into multi-step browser actions and keeps talking with you while it works.
4th overallElevenHacks Season 1
ElevenHacks is a series of ElevenLabs hackathons. Across Season 1 I submitted a project to all 11 hacks and finished 4th overall on the season leaderboard. Living Photos, Apartment 4B and FaceTime from Mars above were ElevenHacks entries. The entries below have write-ups too.
Entry
ElevenHacks Hack #2: Cloudflare x ElevenLabs
A voice CAPTCHA. You speak a one-time phrase, a Cloudflare Worker transcribes it with Groq Whisper, and a fuzzy matcher scores it.
Entry
#ElevenHacks, turbopuffer x ElevenLabs
An animal-sound quiz for ages 1 to 3. Every sound and every spoken mascot line is generated ahead of time, so a toddler never sees a spinner.
Entry
ElevenLabs Hack #5, Kiro x ElevenLabs
A crisis-simulation game where two AI characters debate a 2098 emergency out loud in distinct ElevenLabs voices, then the player commits the response.
Entry
ElevenLabs #ElevenHacks
A voice-only AI companion. Speech alone summons weather, maps, music, news and NASA widgets through a hand-written MCP client.
Entry
ElevenLabs Hack #10: Speech Engine
A voice-native murder mystery where you interrogate three AI suspects out loud over WebRTC, then name the killer.
Entry
ElevenHacks Hack #11, D-ID track
A web app that composites a talking AI presenter into any uploaded video, with narration and subtitles.
Entry
TreeLine Hacks 2026
A hold-to-talk Chrome extension. Ask a question out loud about your screen and a streamed answer appears next to your cursor.
I built it solo in the 36-hour window, and the following week I re-entered it at Global Engineering Hack 2026.
Entry
Amazon Nova AI Hackathon 2026
A voice-driven browser agent that carries out spoken commands one action at a time in an observe, act, observe loop on Amazon Nova.
Entry
Moss x YC Conversational AI Hackathon, Y Combinator, San Francisco
A voice AI CPA that narrates a prepared tax return, reads every number from your own documents, and refuses tax-law questions it cannot cite.
Built overnight with Sathya Kasturi.
Entry
HHS ACL Caregiver AI Prize Challenge, Track 1
A caregiver command center for medications, records and paperwork, built as an encrypted, offline-first iOS app with a web mockup and a waitlist site.
Write-up (product story)Write-up (native app)Waitlist ↗Source ↗
Entry
fal x Sequoia 72-Hour Video Hackathon (developer track)
A voice-directed video editor. You talk to a LiveKit agent to plan a story, cast characters, render shots, and edit the timeline.
Entry
Multi-App AI Agent Hackathon, Online
A dispatch agent that re-plans a field-service crew's day across Slack, Google Sheets, Google Calendar and Gmail when a technician calls out, then checks every write.