🚨 Every AI company wants to lock you into their API. Someone just open sourced the master key that unlocks all of them. One interface. 100+ LLMs.
It's called LiteLLM.
And it just hit 1 billion requests processed.
GPT. Claude. Gemini. Llama. Mistral. Bedrock. Azure. Cohere. Groq. 100+ models. One line of code. Same format. Same output. Swap any model by changing a single string.
No rewriting your app. No learning new APIs. No vendor lock-in. Ever.
Here's what this thing does:
→ Call 100+ LLMs using the exact OpenAI format — every model responds the same way
→ Built-in retry and fallback — if OpenAI goes down, it auto-switches to Claude or Gemini
→ Cost tracking per user, per team, per project — know exactly what you're spending
→ Rate limiting and budget caps — set a $500/month limit per team and it enforces it automatically
→ Load balancing across multiple deployments — spread traffic across Azure, OpenAI, and Bedrock
→ Virtual API keys for every team member — no sharing master keys
→ Admin dashboard UI for monitoring everything
→ 8ms P95 latency at 1,000 requests per second
→ Guardrails, PII redaction, and caching built in
→ Works as a Python SDK or a self-hosted proxy gateway
Here's the wildest part:
Enterprise AI gateway companies charge $50K-$200K/year for exactly this. Centralized LLM access. Cost controls. Key management. Usage monitoring. Load balancing.
LiteLLM does all of it. Self-hosted. Free. Backed by Y Combinator. Used by teams processing over 1 billion API requests.
240 million Docker pulls. 10.4K GitHub stars. 920 forks. 7,300 commits. MIT License.
100% Open Source.
(Link in the comments)