Arena's valuation doubles to $3.1B in 10 months
arena raised $200m series b at $3.1b valuation, doubling in 10 months, as ai model evaluation demand surges.
arena, originating from a 2023 uc berkeley research project, raised $200m series b at $3.1b valuation. its valuation nearly doubled in 10 months, from $1.7b post-money in january. arena reached $100m annualized revenue in june, up from $30m previously. the platform offers free crowdsourced ai model rankings and commercial ai evaluations for model labs and enterprises.