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TLDRocket
21 October 2026
Blacksmith just crossed a line that’s become its own kind of benchmark: the AI code-testing startup raised a $66 million Series C to hit a $1 billion valuation, betting that the next productivity wave depends less on writing code and more on proving it works. Its pitch will sound familiar in a world where “agentic” usually means more autonomy; here it means validation capacity—scaling compute, growing headcount from ~40 to ~75 by year-end, and tightening the feedback loop between generated changes and tests.
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