We’re backing up one bold claim with real money—up to ten million dollars per customer if Devin doesn’t outperform the cost you pay for its engineering output. To make that work, the team built a rigorous measurement system that tracks every code change, test run and deployment. They tally not just lines of code but end-to-end project milestones: feature completion times, bug counts, performance benchmarks and even downstream user-impact metrics. Each metric rolls into a composite “Engineering Velocity Score” that directly ties to customer invoices. What really sells it is the independent audit. External reviewers get read-only access to raw logs in real time. They verify data pipelines, confirm that tests aren’t being cherry-picked, and ensure the Velocity Score excludes auto-formatted or trivial commits. Those auditors then publish a monthly report comparing Devin’s output against three benchmarks: average in-house teams, leading consultancies and historical performance from past Devin deployments. On top of that, there’s a transparency portal for customers. You can drill into your own project dashboard, filter by sprint or by the engineers you’re working with, and see exactly how many “value points” you’re buying versus how many you’re actually getting. If Devin falls short—say your Velocity Score lands 10% below the agreed threshold—you trigger a credit or refund tied to that shortfall, up to the ten-million-dollar cap. The system forced the team to iterate fast on data integrity, contract language and even user-experience elements in the portal. They treated every customer trial as a live stress test. By surfacing real-time performance data and putting real dollars on the line, they’ve turned an abstract promise—“more output than you pay for”—into something concrete and accountable.