# How Bolt reduced mean time to detect by 99% while avoiding runaway token costs

> Learn how Bolt uses Sentry's error monitoring and AI-powered Seer to cut mean time to detect by 99% (days to hours), track token costs, and stay ahead of upstream provider outages.

**URL:** https://sentry.io/customers/bolt/

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**Company:** Bolt

Launched by Stackblitz in 2024, Bolt was one of the first tools to allow non-developers to build full-stack applications with natural language prompts. After going from zero to roughly 250,000 weekly active users in its first two months, Bolt needed an observability platform that could keep up with its scale. Sentry now monitors roughly a dozen distinct services across Bolt's platform, helping the team cut mean time to detect by 99% and reduce errors in key workflows by 18%.

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*Source: [sentry.io/customers/bolt/](https://sentry.io/customers/bolt/)*