Bugbot is now over 3x faster, 22% cheaper, and finds 10% more bugs

Cursor announced major improvements to its Bugbot tool, making it over 3x faster, 22% cheaper, and 10% more effective at finding bugs per review. The update, powered by Composer 2.5, also introduces new features like pre-push reviews and selective re-reviewing. These enhancements aim to help developers catch issues sooner and merge code faster.

Bugbot is now over 3x faster, 22% cheaper, and finds 10% more bugs Today we're shipping our biggest set of improvements yet to Bugbot. Bugbot is now over 3x faster to run, 22% cheaper, and finds 10% more bugs per review. In practice, 90% of Bugbot runs now finish in under three minutes. A faster, less expensive, more thorough Bugbot allows you to find issues sooner and merge code faster. Run Bugbot before you push You can now run Bugbot https://cursor.com/docs/bugbot run-in-your-agent and Security Review https://cursor.com/docs/security-agents run-in-your-agent with /review before pushing code. /review prompts you to choose which agents to run, or use /review-bugbot and /review-security directly. This is a great way to catch and fix issues before pushing the code. /review also syncs with Bugbot on GitHub and GitLab. If you run /review and then open a PR with the same diff, Bugbot recognizes it, skips the review, and leaves a comment noting it has already reviewed that diff. Available in Cursor 3.7+ and on cursor.com/agents https://cursor.com/agents , with support in CLI coming soon. Only review what's new in your PR Bugbot by default re-reviews the entire PR every time a change is pushed. This can result in new flags on code it had already reviewed and approved. You can now configure Bugbot to only review what's new since the last review, keeping feedback focused on your latest updates. How we got here These performance gains are made possible by harness improvements and progress we've made training Composer 2.5, which now powers Bugbot. Our model training work is one part of how we will continue to improve Bugbot over time. Bugbot respects model block lists. If your organization has opted out of Composer 2.5, Bugbot will automatically fall back to the next best available model. Speed and performance can vary depending on your configuration. Learn more Try Bugbot here https://cursor.com/dashboard/bugbot and read the Bugbot docs https://cursor.com/docs/bugbot to learn more.