> /v1/alternatives/vercel-ai-gateway
Open source alternatives to Vercel AI Gateway[005]
Vercel AI Gateway routes requests to many LLM providers through one API, with failover, spend limits, keys and usage analytics. Below are 5 self-hostable open source alternatives, ranked by GitHub popularity.
LiteLLM
Call every LLM API like it's OpenAI [100+ LLMs]
★ STARS
46.2k
⑂ FORKS
7.9k
portkey-ai-gateway
A blazing fast AI Gateway with integrated guardrails. Route to 1,600+ LLMs, 50+ AI Guardrails with 1 fast & friendly API.
★ STARS
11.6k
⑂ FORKS
1.0k
Bifrost
Fastest enterprise AI gateway (50x faster than LiteLLM) with adaptive load balancer, cluster mode, guardrails, 1000+ models support & <100 µs overhead at 5k RPS.
★ STARS
4.7k
⑂ FORKS
557
envoy-ai-gateway
Manages Unified Access to Generative AI Services built on Envoy Gateway
★ STARS
1.6k
⑂ FORKS
241
llm-gateway
Route, manage, and analyze your LLM requests across multiple providers with a unified API interface.
★ STARS
1.2k
⑂ FORKS
130
// EDITOR'S TAKE
LiteLLM is the obvious default given its provider coverage plus keys, budgets and logging, though its Python proxy adds latency under load, which is exactly the gap Bifrost targets with a Go implementation. portkey-ai-gateway is the pick if you want guardrails and prompt management in the same box, and envoy-ai-gateway only earns its complexity if you already run Envoy in Kubernetes.
// FREQUENTLY ASKED
What is the best open source Vercel AI Gateway alternative?
LiteLLM is the most popular open source Vercel AI Gateway alternative by GitHub stars (46,158 stars). The other 4 options are ranked above.
Are these Vercel AI Gateway alternatives self-hostable?
Yes — every project listed here is open source and runs on your own infrastructure. Click into a project to see its license, stars, language, and current health status.
Are they free?
All projects shown are free and open source. Check each project's license page for the terms — most are MIT, Apache 2.0, or AGPL.