What is ARBR?
ARBR is a self-hosted AI gateway that routes each request to a suitable model through one OpenAI-compatible endpoint. It adds observability, budgets, rate limits, guardrails and kill switches across providers. It is MIT licensed, with a hosted option for teams that prefer not to run it.
Key facts
- Pricing
- Open source
- Category
- Coding
- Website
- https://projectarbr.org/
- Listing updated
- Nov 11, 2026
ARBR FAQ
What is ARBR?
ARBR is a self-hosted AI gateway that routes each request to a suitable model through one OpenAI-compatible endpoint. It adds observability, budgets, rate limits, guardrails and kill switches across providers. It is MIT licensed, with a hosted option for teams that prefer not to run it.
What does ARBR cost?
ARBR pricing is listed as Open source.
What are alternatives to ARBR?
Coding alternatives to ARBR include GitHub Copilot, Together AI, Baseten, Straion, Cursor and Pinecone.