Snorkel AI raises $350M at a $3.5B valuation

Snorkel AI has raised $350 million at a $3.5 billion valuation, CEO Alex Ratner told Reuters in a report carried by CNA. The company says its annualized revenue run-rate has also crossed $350 million, up from roughly $20 million a year earlier, as it shifted toward finished datasets and reinforcement-learning environments for frontier labs. For builders, our analysis of automated alignment research costs is the adjacent warning: specialized data and evaluation work is becoming a real line item, not free research overhead.