--- title: Self-driving CI for GitHub Actions, 80% faster | StarSling description: AI-native CI for GitHub Actions. Drop-in replacement for ubuntu-latest. AI agents ship optimization PRs. 80% faster CI, 33% cheaper. url: https://starsling.dev --- # StarSling > AI-native DevOps platform for developers that ship. **Website:** [starsling.dev](https://starsling.dev) **Backed by:** Y Combinator ## Self-driving CI Faster GitHub Actions runners with AI agents that continuously improve your build speeds. - [Join the Waitlist](https://tally.so/r/b5OJVo) - _Be first in line_ - ✓ oxlint `1.4s` - ✓ tsc --noEmit `3.8s` - ✓ vitest run `6.2s` - ✓ build `12.1s` - ✓ playwright e2e `18.3s` - ✓ docker build `24.7s` - ✓ trivy scan `5.1s` - ✓ deploy preview `9.4s` - ✓ pytest suite `14.2s` - ✓ db migrate `2.3s` - ✓ eslint --fix `4.6s` - ✓ jest --coverage `22.8s` - ✓ cargo test `8.7s` - ✓ go vet `1.9s` - ✓ npm audit `3.2s` - ✓ cypress run `31.4s` - ✓ helm lint `0.8s` - ✓ tf plan `11.6s` - ✓ rubocop `7.3s` - ✓ pnpm build `16.5s` --- ## Trusted by fast-moving teams Powering CI for startups and fast-moving engineering teams. - [Better Auth](https://www.better-auth.com) - [Mastra](https://mastra.ai) - [OrgOrg](https://orgorg.com) --- - **+80%** Faster CI - **500,000+** GitHub Actions jobs [See detailed results](#real-results-from-customers) - [Better Auth before](https://github.com/better-auth/better-auth/actions/metrics/performance?dateRangeType=DATE_RANGE_TYPE_CUSTOM&range=1770336000000-1770681600000) · [after](https://github.com/better-auth/better-auth/actions/metrics/performance?dateRangeType=DATE_RANGE_TYPE_CUSTOM&tab=jobs&filters=runner_type%3Aself-hosted&range=1773964800000-1774310400000) - [Mastra before](https://github.com/mastra-ai/mastra/actions/metrics/performance?dateRangeType=DATE_RANGE_TYPE_CUSTOM&range=1771200000000-1771977600000) · [after](https://github.com/mastra-ai/mastra/actions/metrics/performance?dateRangeType=DATE_RANGE_TYPE_CUSTOM&tab=jobs&filters=runner_type%3Aself-hosted&range=1773187200000-1774310400000) --- ## What customers are saying Real teams shipping faster CI with StarSling agents. > HUGE props to @yonasbe and @dbworku for helping us speed up our CI! PLUS the starsling bot continually finding optimizations for us. At Mastra we move so fast that the bottleneck becomes reviews and CI. Time spent compounds and @starslingdev helps you realize how much time you're losing. > > — [Abhi Aiyer (@abhiaiyer)](https://twitter.com/abhiaiyer/status/2050087668160282929), Co-founder & CTO, Mastra, April 30, 2026 > We've been using @starslingdev for better auth CI :> it's been saving us countless hours! both with fast runners and their agent optimizing our CI. huge congrats on the launch!! > > — [Beka (@bekacru)](https://twitter.com/bekacru/status/2050045062252527715), Founder, Better Auth, April 30, 2026 --- ## CI is the new bottleneck AI made coding 10x faster. CI hasn't kept up, until now. --- ## Product Demo [Watch Video](https://starsling.dev/#video) --- ## AI in your CI: how StarSling self-drives Fast on day one, faster as time goes on. ### Faster Builds 5th Gen AMD EPYC processors with caching that's 4X faster than GitHub-hosted runners - 5th Gen AMD EPYC (30% faster than GitHub) - Compatible with actions/cache, zero config - Unlimited concurrency ### Self-driving AI agents deep-scan your workflow runs and ship optimization PRs - Caching: detect missing or misconfigured caches - Dependency installation: implement faster install strategies (e.g., frozen lockfiles, parallel installs) - Build steps: parallelize, remove redundant and optimize slow steps - Tests: detect misconfigured test jobs and test database interactions - Workflow structure: implement job splitting, matrix strategies, and dependency ordering ### Cheaper Than GitHub 4 vCPU Linux runners with 16 GB RAM at usage-based pricing - $0.008/min vs GitHub's $0.012/min (33% cheaper) - Queue time never billed - AI optimizations included - No seat fees --- ## Real results from customers Per-workflow breakdown across Better Auth and Mastra. - [Combined Store Tests](https://github.com/mastra-ai/mastra/blob/main/.github/workflows/secrets.test-combined-stores.yml) — Mastra: GitHub Actions 9m 22s, StarSling 2m 49s (3.3x faster) - [E2E](https://github.com/better-auth/better-auth/blob/main/.github/workflows/e2e.yml) — Better Auth: GitHub Actions 7m 3s, StarSling 3m 11s (2.2x faster) - [CI](https://github.com/better-auth/better-auth/blob/main/.github/workflows/ci.yml) — Better Auth: GitHub Actions 5m 55s, StarSling 4m 1s (1.5x faster) --- ## Real PRs from StarSling agents Pull Requests merged by customers. StarSling agents analyze and optimize your CI automatically. - **Mastra** — [ci: shard E2E kitchen-sink across 3 parallel jobs](https://github.com/mastra-ai/mastra/pull/15888) - **Better Auth** — [chore(ci): optimize Playwright browser installs in E2E](https://github.com/better-auth/better-auth/pull/8073) - **Better Auth** — [chore: fix turbo cache configuration in ci](https://github.com/better-auth/better-auth/pull/7950) - **Mastra** — [test(chroma): reduce fixed 2000ms waitForIndexing sleep to 200ms and add Docker healthcheck](https://github.com/mastra-ai/mastra/pull/13866) - **Mastra** — [test(couchbase): optimize vector test suite by replacing fixed sleeps with bucket.ping()](https://github.com/mastra-ai/mastra/pull/13965) --- ## Install with a one-line change Drop-in replacement for ubuntu-latest. Update one line in your workflow Install the StarSling GitHub app then swap `ubuntu-latest` for `starsling-ubuntu-24.04`. ```yaml # .github/workflows/ci.yml build: - runs-on: ubuntu-latest + runs-on: starsling-ubuntu-24.04 ``` --- 2,000 free minutes. Then $0.008/min. AI-powered optimizations included with every minute. ### Free Trial Free 2,000 minutes your first month - 2,000 minutes included - AI optimizations included - Unlimited concurrency - No credit card required ### Usage-Based $0.008/min 33% cheaper than GitHub Actions - AI optimizations included - Queue time never billed - Unlimited concurrency - 99.99% SLA ### Enterprise Custom Volume discounts available - Custom minute allocation - SSO/SAML + dedicated account manager - <1hr incident response - Custom SLAs ### Alum Discount ### Compared to GitHub Actions - 2 vCPU / 8 GB: GitHub $0.006/min, StarSling $0.004/min (33% less) - 4 vCPU / 16 GB: GitHub $0.012/min, StarSling $0.008/min (33% less) - 8 vCPU / 32 GB: GitHub $0.022/min, StarSling $0.016/min (27% less) - 16 vCPU / 64 GB: GitHub $0.042/min, StarSling $0.032/min (24% less) --- ## Frequently asked questions Everything you need to evaluate StarSling for your CI. ### What is StarSling? StarSling is an AI-native DevOps platform for developers that ship. StarSling Runners are self-driving CI: a drop-in replacement for ubuntu-latest and ubuntu-24.04 that makes GitHub Actions 80% faster and up to 33% cheaper, with AI agents that continuously analyze your workflows and ship optimization PRs. ### What does Self-Driving CI mean? Self-driving CI is CI that improves itself. Beyond running your workflows on faster hardware, AI agents continuously analyze your jobs, run logs, and machine telemetry, then open pull requests that optimize your pipeline: caching, parallelization, dependency installs, test sharding, and workflow structure. Traditional CI is static; self-driving CI gets faster the longer you use it. ### How do I speed up GitHub Actions builds? Three things move the needle: faster hardware, better caching, and removing redundant work. Swap `ubuntu-latest` for a runner with stronger CPUs and faster cache (StarSling Runners are 80% faster end-to-end), then let AI agents find dead steps and parallelization opportunities your team hasn't had time to fix. ### Why are GitHub Actions runs so slow? Usually the runner. GitHub-hosted `ubuntu-latest` runs on older shared hardware with a slower cache service, so even simple builds spend time waiting on CPU and on cache fetches. Switching to faster CPUs and a regional cache (StarSling Runners do both) typically cuts wall-clock time in half before any workflow optimization. ### Are StarSling Runners a drop-in replacement for ubuntu-latest? Yes. Change `runs-on: ubuntu-latest` (or `ubuntu-24.04`) to `runs-on: starsling-ubuntu-24.04` in your GitHub Actions workflow files. No other config changes required. ### How much do StarSling Runners cost? $0.008 per minute for 4 vCPU Linux runners with 16 GB RAM, 33% cheaper than GitHub Actions' $0.012/min. Queue time is never billed. New accounts get 2,000 free minutes the first month. ### How do StarSling's AI optimizations work? After installing the StarSling GitHub App, AI agents continuously analyze your workflows, jobs, run logs, and machine telemetry, then open pull requests that optimize your setup: cache fixes, faster install strategies, build parallelization, test sharding, and workflow restructuring. You review and merge. ### What's the best GitHub Actions runner for AI-assisted development? Coding agents (Claude Code, Cursor, Codex) push PR volume up several-fold, which compounds CI cost and queue times fast. The right fit is a runner with unlimited concurrency, continuous AI optimization (so the pipeline gets faster as PR volume grows), and per-minute pricing with no seat fees. StarSling Runners are built for this pattern. ### Do I pay for failed jobs? Yes, but failed jobs typically exit quickly so the cost is minimal. Queue time is never billed, and the 2,000 free minutes give you room to experiment. ### How does StarSling handle security and isolation? Each job runs on a fresh ephemeral runner that's destroyed after the job completes. Secrets pass directly from GitHub to your job and are never stored by StarSling. --- ## Supercharge your CI with AI Join AI-native teams that have switched to StarSling Runners - [Join the Waitlist](https://tally.so/r/b5OJVo) --- AI-native DevOps platform for developers that ship. ### Product - [Features](https://starsling.dev/#features) - [Pricing](https://starsling.dev/#pricing) - [Join the Waitlist](https://tally.so/r/b5OJVo) ### Resources - [Blog](https://starsling.dev/blog) ### Company - [Careers](https://starsling.dev/#careers) - [Privacy](https://starsling.dev/privacy) - [Terms](https://starsling.dev/terms) © 2026 StarSling, Inc. All rights reserved.