AI Testing Startup Blacksmith Hits $550M Valuation as AI Coding Booms

Blacksmith lands a $45 million Series B at a $550 million valuation. The Peak XV Partners-led round pushes the company to a $550M valuation, up nearly 10x from the $60M price tag it secured less than a year ago. Customer count surged from 700 to over 5,000, pushing annualized revenue into the "tens of millions of dollars" for a lean workforce of roughly 30 employees. The core bet relies on the friction created by AI code generation, where tools like Cursor write software so fast that human validation becomes an immediate operational chokepoint. "Validating code is still a bottleneck, and it’s an even bigger bottleneck because people are writing even more." — Aditya Jayaprakash You can spit out boilerplate code at warp speed now, but someone still has to pay the toll to make sure the AI didn't hallucinate a critical failure into production.