Arena
Last verified 2026-05-06. 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 | $250.0Mattributed |
|---|---|
| Latest round | series-a, $150.0M, 2026-01-06attributed |
| Founded | 2022 |
| Headquarters | Boston, USA |
| Industry | ai |
| Stage | series-a |
| Website | arena.ai |
Arena AI operates a platform where users compare different language models through direct head-to-head battles. The service targets researchers and developers evaluating AI system performance and capabilities. The differentiator is the public leaderboard that ranks LLMs based on community-driven comparisons rather than proprietary benchmarks alone.
Funding rounds
| Date | Round | Amount | Lead |
|---|---|---|---|
| 2026-01-06 | series-a | $150.0M | a16z |
Detected tech stack
Cloudflare, Vercel, HeroUI, Catch, Cloudflare Bot Management, React, posthog-js, @sentry/browser, Next.js
Provenance
| Fact | Status | Basis |
|---|---|---|
| Series A, $150.0M | attributed | techcrunch named as publisher. No document URL on file. |
| Total raised $250.0M | attributed | techcrunch named as publisher. No document URL on file. |
| Company existence | self-reported | arena.ai, read 2026-05-06 |
| Description | self-reported | arena.ai, read 2026-05-06 |
Nothing on this page is sourced yet. A sourced fact links to a document that states it.
Change history
No change recorded since records began on 2026-09-24.