Blacksmith raised million at a unicorn price for CI built around AI code

A continuous integration platform just reached a one billion dollar valuation on the pitch that AI agents are writing more of the code and somebody has to test it. TechCrunch reports that Blacksmith closed a 66 million dollar Series C led by Sequoia Capital, taking its total raised to 125 million and its valuation into unicorn territory.

The round follows a 45 million Series B closed in August at a 550 million valuation. The jump to one billion in roughly two months is the pace of a round that sold on momentum rather than on last quarter's results. TechCrunch says annual recurring revenue grew 17 times over the previous period, and quotes a figure of more than 90 million CI jobs completed on the platform. Mercury and Granola are named customers.

What the pitch is

Co-founder and chief executive Aditya Jayaprakash gave the pitch in the article: "As agents write more of the world's software, the question that matters is whether it can be trusted." The product itself is a continuous integration platform, meaning the service that runs after a developer or agent proposes a change, builds the project, runs the tests, and merges or rejects based on the result. Blacksmith's argument is that if agents write more pull requests, the pipeline that validates them is where the next gain is: a slow or flaky CI puts a ceiling on how fast an agent-driven team can move, and a cheap CI makes agent-written code economically possible to review at scale.

TechCrunch names a reality the company is selling into. Agents can open many pull requests in a day. If each pull request waits twenty minutes in a queue and another ten in a build, the review budget is spent before the code is read. A CI that returns in a few minutes changes which decisions a reviewer has time to make.

What the article does not say

The piece does not state how Blacksmith differs on price or feature from the incumbents a team compares against, which include GitHub Actions and the hosted CI products from GitLab and CircleCI. It names two customers and gives one revenue growth multiple, but no absolute revenue figure and no customer count. It also does not say how Sequoia valued the business at six times its August price in two months, beyond the growth multiple. Reporting is thin on all three.

For a founder watching the AI engineering stack settle, the signal to read out of this is where the capital is going. A billion dollars at an August-to-October pace lands on the build and test loop. The buyers Sequoia is betting on are the engineering leaders who think the hard part of shipping AI-written code is no longer writing it. If that reading is right, the next hiring plan for an engineering function has more CI, security review and evaluation in it than it did a year ago, and less headcount against writing features.

Source

TechCrunch: Blacksmith hits unicorn valuation after Sequoia leads Series C.