The AI industry has become adept at measuring itself. Benchmarks improve, model scores rise, and every new release arrives with a list of metrics meant to signal progress. And yet, somewhere between the lab and real life, something keeps slipping. Which model actually feels better to use? Which answers would a human trust? Which system would you put in front of customers, employees, or citizens and feel comfortable standing behind it? That gap is where LMArena has quietly built its business, and why investors just put $150 million behind it at a $1.7 billion valuation, in a Series A round.…
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