Open source repo
What's inside BerriAI/ litellm
BerriAI/litellm is a Python repo with 4,405,837 lines written in 5,630 files. litellm is built with Next.js, React, FastAPI, and 2 more and uses Redis, Postgres, OpenAI, and 2 more. AI signed 20% of the 45,956 commits of litellm.
Its description on GitHub: “The fastest, litest AI Gateway. Rust core with Python SDK. Call 100+ LLM APIs in OpenAI (or native) format with cost tracking, guardrails, load balancing, and logging [Bedrock, Azure, OpenAI, Anthropic, OpenAI, VertexAI, vLLM, Nvidia NIM]”
Read on October 30, 2026, at commit ef9385c.
What the card proved: what it’s built with on the left, what it uses on the right.
See each one with its proofIts folders
In figures
- lines written
- 4,405,837
- The ones people and agents wrote: product, tests, schemas and tooling. Generated code doesn’t count.
- files
- 5,630
- The product’s, not counting tests.
- test files
- 6,741
- The files that test the code.
SeeRepo read its code facts-only: no AI, and none of its code is kept.
Frequently asked questions
- What is BerriAI/litellm?
- BerriAI/litellm is a Python repo with 4,405,837 lines written in 5,630 files. Its description on GitHub: “The fastest, litest AI Gateway. Rust core with Python SDK. Call 100+ LLM APIs in OpenAI (or native) format with cost tracking, guardrails, load balancing, and logging [Bedrock, Azure, OpenAI, Anthropic, OpenAI, VertexAI, vLLM, Nvidia NIM]”
- The proof: its page on GitHub
- What is litellm built with?
- litellm is built with Next.js, React, FastAPI, and 2 more and uses Redis, Postgres, OpenAI, and 2 more.
- The proof: each technology with its file and line
- How much of litellm did AI write?
- AI signed 20% of the 45,956 commits of litellm.
- The proof: the commits each tool signed
- How many stars does litellm have on GitHub?
- litellm had 62,405 stars on GitHub on October 30, 2026.
- The proof: its page on GitHub
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