companies / arena-ai
Generated UTC · publication cutoff 2026-11-09
Insufficient cited evidence for a two-sentence summary.
verified=2026-05-06 json
| total_raised | 250,000,000250.0M | ○ |
|---|---|---|
| founded | 2022 | |
| hq | Boston, USA | |
| industry | unknown | |
| stage | series-a |
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.
No cited completed company acquisition recorded.
Dated disclosures. Customer relationships and classifications are historical; ARR is separate from revenue.
No cited disclosure recorded: named customer, disclosed revenue, ARR, count, B2B / B2C, sector, go-to-market.
No cited valuation with an explicit basis is recorded.
Historical post-money / actual annual or stated TTM revenue. Same currency; economic valuation date within 90 days of revenue period end, inclusive. No FX, ARR, annualized revenue, estimates or projections. Conflicts and ambiguous ties are withheld.
No qualifying pair recorded.
| date | type | amount | lead | src |
|---|---|---|---|---|
| 2026-01-06 | series-a | 150,000,000150.0M | null | ○ |
| investor | src |
|---|---|
| Andreessen Horowitz | ○ |
Cloudflare, Vercel, HeroUI, Catch, Cloudflare Bot Management, React, posthog-js, @sentry/browser, Next.js
| fact | status | src |
|---|---|---|
| Series A, $150.0M | attributed | ○ |
| existence | self-reported | WEB |
| description | self-reported | WEB |
| date | fact | change | src |
|---|---|---|---|
| 2026-09-27latest_round: series-a, $150.0M, 2026-01-06, lead: a16z → series-a, $150.0M, 2026-01-06, lead: null, ○ 2026-05-06 | latest_round | series-a, $150.0M, 2026-01-06, lead: a16z → series-a, $150.0M, 2026-01-06, lead: null | ○ 2026-05-06 |
Records begin 2026-09-24. all_changes