StarSling · Jun 2026
Official GA announcement: StarSling Runners reached general availability after running over one million CI jobs, with customer results showing up to 6x faster CI and 13x cheaper runs.
Company research
Public company, workplace, funding, and market signals
Updated Jul 30, 2026
Overview
StarSling is a 2025, San Francisco-based YC Spring 2025 startup building AI-native CI for GitHub Actions. Its primary product, StarSling Runners, is a drop-in ubuntu-latest/ubuntu-24.04 replacement with faster Linux runners plus AI agents that open optimization PRs to improve CI over time.
Primary product
StarSling Runners (AI-native CI for GitHub Actions)
Founded
2025
Headquarters
San Francisco, California, United States
Team size
1-10
Industry
Software Development
Sub-industry
DevOps / CI platforms
Offices
San Francisco, California, United States
Business model
usage-based
free trial
enterprise sales
B2B SaaS
Funding
Stage
Seed
Total raised
$500K
Latest round
Seed · May 2025
Latest amount
$500K
May 2025
People & investors
Work & culture
Founder-led and engineering-heavy, with public hiring language emphasizing high autonomy, ownership, and shipping to real customers.
Product & market
Pricing
Usage-based per-minute runner pricing with a free trial and enterprise custom pricing.
Differentiators
- —Drop-in replacement for ubuntu-latest and ubuntu-24.04
- —AI agents that open optimization PRs
- —Queue time is never billed
- —No seat fees
- —Unlimited concurrency
- —Up to 6x faster CI in public customer examples
- —Up to 33% cheaper than equivalent GitHub-hosted runners
- —Short-lived hardware-isolated microVM execution
Technology
GitHub Actions
GitHub App
Ubuntu 24.04 / ubuntu-latest runners
5th Gen AMD EPYC processors
actions/cache compatibility
hardware-isolated microVMs
frontier AI models
workflow logs / timing / telemetry analysis
Customers
Better Auth
Mastra
Partcl
OrgOrg
Competitors
GitHub-hosted runners
GitHub Actions
Depot
Blacksmith
WarpBuild
CircleCI
Scale & contact
Estimated revenue
~$330K-$428K ARR (third-party estimates)
Estimated monthly visits
4.1K
Traffic estimate as of Jul 2026
Latest news
Y Combinator · Jun 2026
YC launch page describing StarSling as an AI-native, drop-in replacement for GitHub Actions runners with agents that continuously optimize CI workflows.
LinkedIn (StarSling) · Jun 2026
Company LinkedIn announcement of GA, repeating the one million CI jobs milestone and the faster/cheaper CI claims.
StarSling · Apr 2026
Original launch post for StarSling Runners, introducing AI-native CI, drop-in GitHub Actions runners, and launch pricing starting at $0.004/min for 2 vCPU runners.
TBPN Digest · Jun 2025
Third-party coverage of the early launch, describing StarSling as 'Cursor for DevOps' and reporting 400+ companies in private beta.
Jobs and careers at StarSling
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