StarSling

StarSling sells fast GitHub Actions runners with AI agents that keep optimizing a team's CI workflows. The runners are a drop in replacement for the default Ubuntu runner, running Ubuntu 24.04 on 5th generation AMD EPYC processors in sizes from 2 to 64 vCPU, with GPU runners also offered. The vendor claims up to 6x faster runs, and the optimization agents open pull requests on the customer's repositories that shard test suites, fix caches and shorten the critical path. The product line also includes Review Runners, a set of skills for improving, securing and scoring CI, and a sling command line tool. Published customer measurements include a queue time cut from 9.5 minutes to 35 seconds and a test suite cut from about 30 minutes to about 5 minutes. It is aimed at engineering teams whose coding agents produce changes faster than their CI can verify them. Pricing is per minute with unlimited concurrency, and the optimization agents are included with paid usage. CPU rates in USD are $0.004 per minute for 2 vCPU and 8 GB, $0.008 for 4 vCPU and 16 GB, $0.016 for 8 vCPU, $0.032 for 16 vCPU, $0.064 for 32 vCPU and $0.128 for 64 vCPU. The site shows GitHub's own rates alongside, for example $0.012 per minute at 4 vCPU, and lists GPU rates separately. Getting started is free with no credit card required.