AIArsenal

The curated directory of free AI tools. 100% free for builders, funded by transparent partnerships.

WEEKLY TOOL PICKS
DIRECTORY
  • All tools
  • Categories
  • Ask AI
  • Blog
FOR BUILDERS
  • Submit a tool
  • Get featured
  • Partner tier
  • partner@aiarsenal.dev
ABOUT
  • How we curate
  • Affiliate disclosure
  • GitHub
Affiliate disclosure: AIArsenal is free for users. Some outbound links include affiliate tracking — we earn a small commission when you sign up through them, at no extra cost to you. Editorial decisions (which tools we list, how we describe them) are never tied to commissions. Featured placements are labeled with a yellow FEATURED badge and priced transparently on the Get Featured page.
© 2026 AIArsenal
AIArsenal/Compare/Multi
MULTI-WAY COMPARISON · UP TO 5 TOOLS

Lightning AI vs Modal

Add up to 5 tools to see them side-by-side: free tier, company, OSS status, privacy, and editorial decision guides. Share the URL — your selection persists in the link.

Lightning AIModal
Lightning AI
~35 hrs/month T4 + 24/7 CPU studio + 100GB storage
Try Lightning AI →
Modal
Serverless GPU — $30/month ongoing credits, T4–H100
Try Modal →
Lightning AIModal
FREE TIER~35 hrs/month T4; 100GB storage$30/month free; T4–H100
COMPANYLightning AIModal Labs
CATEGORYInfrastructureInfrastructure
SUBCATEGORYFree Compute & GPUsFree Compute & GPUs
OPEN SOURCENoNo
PRIVACYPyTorch Lightning teamSub-second cold starts
EDITORIAL VERDICTS
Pick Lightning AI if…
  • ▸Developers needing a persistent cloud IDE with free T4 GPU for ML projects.
  • ▸PyTorch users seeking a robust, free cloud development environment and storage.
  • ▸Those who prefer a full IDE over notebooks for their machine learning workflow.
Pick Modal if…
  • ▸Python developers deploying AI models, APIs, or batch jobs without ops overhead.
  • ▸Teams needing serverless T4–H100 GPUs with sub-second cold starts on a budget.
  • ▸Researchers or startups prototyping and scaling production AI workloads easily.
Still stuck? Ask AIArsenal to weigh these for your specific use case.ASK AI →