Blacksmith raises $66 million at a $1 billion valuation

A fast-moving valuation

Across its three rounds, Blacksmith has raised $125 million. Its valuation rose from $60 million after Series A to $550 million after Series B, then to $1 billion in the latest round.

The two-month gap between the last two rounds is striking. But the valuation figures tell us less about how much demand Blacksmith has won than about how investors are pricing the company’s place in a market shaped by AI-assisted software development.

Trust is the harder problem

Jayaprakash says companies are struggling to keep up with the volume of code checks, particularly as AI tools generate more code. He expects the central question to shift toward whether that software can be trusted.

That makes continuous integration more than a matter of speeding up builds. Blacksmith’s stated job is to assemble, test, merge and validate changes; as code production grows, the pressure falls on whether those checks can keep pace.

I think the announcement’s most important omission is evidence of how much code Blacksmith processes, or how its customers’ workloads have changed. The funding and valuation show investor confidence, but they do not establish that AI-generated code is already driving measurable demand for the product.

If AI agents do write more software, the value of faster checks will depend on whether those checks can make the output trustworthy. That is a more demanding test than simply keeping up with the volume.