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Blacksmith raises a $66 million Series C round led by Sequoia, valuing the company at $1 billion

Funding Provisional 93% confidence first seen

Blacksmith, an AI code-testing startup, announced a $66 million Series C funding round led by Sequoia. The investment values the company at $1 billion and follows earlier fundraising that brought it to a lower valuation shortly before.

Blacksmith Sequoia Capital Series C

The deal

Blacksmith $66 million Series C · announced 21 Oct 2026

Investors Sequoia Capital

Deal terms as reported in the coverage below.

Source coverage

Exclusive: AI code-testing startup Blacksmith hits $1 billion valuation as AI-written code surges Fortune independent Blacksmith hits unicorn valuation after Sequoia leads Series C TechCrunch independent

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