{"changes":[{"companyHref":"/c/polymathlabs-ai","date":"2026-09-24","documentUrl":"https://www.ycombinator.com/companies/polymath","domain":"polymathlabs.ai","fact":"provenance:description","name":"Polymath","new":{"publisher":"Y Combinator","status":"sourced","url":"https://www.ycombinator.com/companies/polymath"},"old":{"publisher":"polymathlabs.ai","status":"self-reported","url":"https://polymathlabs.ai"},"publisher":"Y Combinator","reason":null,"retrievedAt":"2026-09-17","slug":"polymathlabs-ai","status":"sourced","url":"https://whoraisedwhat.com/c/polymathlabs-ai"},{"companyHref":"/c/polymathlabs-ai","date":"2026-09-24","documentUrl":"https://www.ycombinator.com/companies/polymath","domain":"polymathlabs.ai","fact":"provenance:existence","name":"Polymath","new":{"publisher":"Y Combinator","status":"sourced","url":"https://www.ycombinator.com/companies/polymath"},"old":{"publisher":"polymathlabs.ai","status":"self-reported","url":"https://polymathlabs.ai"},"publisher":"Y Combinator","reason":null,"retrievedAt":"2026-09-17","slug":"polymathlabs-ai","status":"sourced","url":"https://whoraisedwhat.com/c/polymathlabs-ai"}],"country":"US","description":"Simulation environments to train & evaluate long-horizon AI agents","domain":"polymathlabs.ai","employees":null,"founded":2025,"fundingTotalQuarantined":false,"githubOrg":null,"githubStars":null,"industry":"robotics","investors":[],"lat":null,"lng":null,"location":null,"name":"Polymath","rounds":[{"amountQuarantined":false,"amountUsd":1000000,"currency":"USD","date":"2026-01-01","investors":[],"leadInvestor":null,"source":{"fact":"round","publisher":"yc","retrievedAt":"2026-06-12","status":"attributed","url":null},"status":"attributed","type":"seed","url":null}],"slug":"polymathlabs-ai","sources":[{"fact":"round","publisher":"yc","retrievedAt":"2026-06-12","status":"attributed","url":null},{"fact":"existence","publisher":"Y Combinator","retrievedAt":"2026-09-17","status":"sourced","url":"https://www.ycombinator.com/companies/polymath"},{"fact":"description","publisher":"Y Combinator","retrievedAt":"2026-09-17","status":"sourced","url":"https://www.ycombinator.com/companies/polymath"}],"stage":"seed","techStack":["hsts","lenis 1.3.17","next.js","react","vercel"],"totalRaisedUsd":1000000,"updatedAt":"2026-06-12"}