AI models & APIs startups are built with

The tools behind startups: frameworks, website builders, hosting, payments, analytics, AI and more, ranked by how many startups in the Astracia directory use them.

240 tools · 10,134 startups with a known stackBeta

← All tools

AI models & APIs

OpenAI43
Claude (Anthropic)42
Google Gemini26
Mistral AI4
Vercel AI SDK4
LangChain2
OpenRouter2
Replicate2
ElevenLabs1
fal.ai1
Groq1

How we know

We read the public home page of each startup in the directory (scripts, page generator, server headers and "Made with" badges) and the tech stack that founders list publicly. Counts include only public startups in the Astracia directory; one startup can use many tools.