Factory Router cuts inference costs by 63%

When we introduced Factory Router in June, benchmarks showed 20–25% lower inference costs while maintaining near-frontier task completion.

Production results are now even stronger.

Sessions using Factory Router cost 63% less in aggregate than the same workload would have cost at published frontier-model rates.

" Factory Router saved us thousands of dollars in inference costs in one week.

For the router users, they saved a median of 72%.

This has greatly extended our runway for AI investments while reducing the mental load of choosing the optimal model for every task.

" Lower costs do not require assigning every task to a smaller model.

Factory Router selects an efficient model when it can complete the workload reliably and moves to a stronger model when needed.

In our published task-completion benchmarks , routed runs achieved 99% of Claude Opus 4.7’s pass rate on Terminal-Bench 2 and 96% on Legacy-Bench .

Factory Router is also now available in Factory Private (in private preview), making it the first and only on-premises model router built for software development agents.

Teams can run routing and inference in their own VPC, on-premises infrastructure, or air-gapped network.

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