How Lumen Labs doubled users while keeping CSAT at 4.9 with Silver
A developer-tools company grew its user base 2x in a year while maintaining one of the highest customer satisfaction scores in its category.
"Our users can't tell they're talking to AI — and that's the highest compliment. Silver answers like someone who actually knows the product."
Aisha Kamara, Support Lead at Lumen Labs
The Challenge
Lumen Labs' users are technical and expect fast, accurate answers. As the user base doubled, ticket volume outpaced the small support team, and response quality was at risk. Generic answers weren't an option — wrong information to a developer erodes trust immediately.
The Solution
Lumen Labs trained Silver on their extensive technical docs, changelog, and past support threads. Silver now answers detailed product questions accurately and in the team's technical tone, deflecting the routine load while routing genuinely complex debugging cases to engineers with full context.
The Results
Despite doubling users, CSAT held steady at 4.9/5. Silver resolves 58% of incoming tickets, and first-response time dropped to under a minute. The support team scaled with growth instead of scrambling behind it.
