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Factory's Matan Grinberg: The Coming ‘Dark Factory’ Where Software Builds Itself

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1,096 views52likes51:31sequoiacapitalOriginal Release: 2026-07-21

Factory, led by co-founder and CEO Matan Grinberg, pioneered fully autonomous coding agents starting in April 2023, two years before enterprises were ready. The company survived its 'journey in the desert' by making the difficult decision to return nearly all revenue to customers when their product wasn't creating obsessed developers. Factory's key insight is that a model-agnostic harness outperforms co-designed solutions because exposing a harness to multiple models prevents overfitting to any single one. They argue that open-weight models like GLM will capture the majority of tokens by staying one generation behind the frontier at a fraction of the cost. Looking ahead, Factory predicts that 90% of coding tokens will run asynchronously in what they call the 'dark factory'—a self-building software environment where autonomous agents work without human intervention, similar to Tesla's manufacturing factories.