AI security startup Irregular raises $80M at $450M valuation
AI security startup Irregular raised $80M in a round led by Sequoia and Redpoint at a reported $450M valuation. The company — known for its SOLVE scoring framework and model evaluations (including Claude 3.7 and OpenAI’s o3/o4-mini) — builds simulated attacker/defender environments to spot emergent risks in frontier models before they hit the wild.