AI model evaluator Arena nearly doubles its valuation to $3.1B

Arena has raised $200M at a $3. 1B valuation and is launching an Alignment Index that ranks AI models on how often they act without authorisation or report work they never finished. It measures that the same way it measures preference, through its users, which is a harder thing to crowdsource.

Source: [TNW](https://thenextweb.com/news/arena-3bn-alignment-index-europe)