Langfuse
Last verified 2026-05-05. JSON
The funding figures on this page are attributed, not sourced: a publisher is on record but no document URL is. How we mark provenance.
| Total raised | $4.0Mattributed |
|---|---|
| Latest round | seed, $4.0M, 2023-11-01attributed |
| Founded | 2022 |
| Headquarters | Berlin, Berlin |
| Industry | devtools |
| Stage | seed |
| Website | langfuse.com |
Open source LLM engineering platform
Funding rounds
| Date | Round | Amount | Lead |
|---|---|---|---|
| 2023-11-01 | seed | $4.0M | lightspeed |
Detected tech stack
Vercel, HeroUI, Next.js, React, Webpack, posthog-js, @sentry/browser
Provenance
| Fact | Status | Basis |
|---|---|---|
| Seed, $4.0M | attributed | yc named as publisher. No document URL on file. |
| Total raised $4.0M | attributed | yc named as publisher. No document URL on file. |
| Company existence | sourced | Y Combinator named as publisher. Document, retrieved 2026-09-17. |
| Description | sourced | Y Combinator named as publisher. Document, retrieved 2026-09-17. |
Change history
| Date | Fact | Change | Basis |
|---|---|---|---|
| 2026-09-24Description: self-reported → sourced, Y Combinator, document, retrieved 2026-09-17 | Description | self-reported → sourced | Y Combinator, document, retrieved 2026-09-17 |
| 2026-09-24Existence: self-reported → sourced, Y Combinator, document, retrieved 2026-09-17 | Existence | self-reported → sourced | Y Combinator, document, retrieved 2026-09-17 |
Records begin 2026-09-24. All changes