Overview
- Blacksmith announced the $45 million Series B on Wednesday, Aug. 12, 2026, a round led by Peak XV Partners that values the company at roughly $550 million and includes participation from GV and Y Combinator.
- The startup says it expanded from a CI cloud into an AI-assisted validation platform with Codesmith, an agent that diagnoses CI failures and can automatically fix failed checks inside the validation loop.
- Reporting shows substantive discrepancies in Blacksmith’s metrics: the company has claimed between 5,000 and 6,000 customers while other accounts put the base at 700–800, and reported ARR and headcount figures vary across sources.
- Blacksmith says most new capital will fund compute capacity as it scales hundreds of thousands of cores to run CI jobs faster, and the company is hiring engineers in New York and San Francisco to support that growth.
- The business faces near-term execution risk because major cloud and AI vendors offer competing CI and validation tools, and the startup must convert rapid fundraising into sustained customer retention and predictable unit economics.