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

He argued that “customer obsession” is an input metric and can be misleading; the output metric that matters is whether customers become obsessed with the product. This framing drove decisions like refunding revenue when Factory felt it wasn’t delivering an experience developers loved.

He said enterprises have “scars” from cloud-era pricing and migration pain, and they now resist putting their fate in any single model provider’s hands. Factory positions itself around modularity and the ability to hot-swap models as better/cheaper options emerge.

When Factory realized it had signed contracts while “the product was not good,” he said they proactively refunded customers rather than risk churn and broken trust. He described it as one of the hardest moments, but central to maintaining credibility for when the product would be ready.

He said the early approach required too big a behavioral leap—fully autonomous agents before developers were even comfortable with tools like autocomplete—making the product “two years too early.” He pointed to the Droid CLI launch (September 26, 2025) as a shift to meeting developers where they work.

He claimed a multi-model harness improves performance by avoiding overfitting to one model’s quirks, analogizing that models are to a harness what data is to a model. He illustrated with differing tendencies of Opus vs GPT 5.6 and the need for consistent user experience (e.g., reliably maintaining to-do lists across models and long-session compactions).