OpenRoutervsLiteLLM

Full side-by-side comparison — features, pricing, platforms, and which one wins in 2026.

OpenRouter

LLM APIs & Inference

Unified API for 200+ AI models from all providers

Full review →Website ↗

LiteLLM

LLM APIs & Inference

Unified API proxy for 100+ LLM providers — one interface, any model

Full review →Website ↗
FeatureOpenRouterLiteLLM
CategoryLLM APIs & InferenceLLM APIs & Inference
PricingPay-per-use (varies by model)Free (open-source), hosted proxy available
GitHub Stars—
✓ More stars
16k
PlatformsWebLinux, macOS, Docker
Key Features
  • ✓ 200+ models
  • ✓ Unified API
  • ✓ Auto-fallback
  • ✓ Rate limiting
  • ✓ Usage tracking
  • ✓ OpenAI-compatible
  • ✓ Unified API for 100+ LLM providers
  • ✓ Load balancing across multiple API keys/providers
  • ✓ Automatic fallbacks when providers fail
  • ✓ Spend tracking and budget alerts per team/project
  • ✓ Rate limiting and retry logic built-in
  • ✓ OpenAI SDK compatible — zero code changes
  • ✓ Self-hostable proxy server
  • ✓ Supports streaming, function calling, vision
Pros
  • + Access to 100+ models via one API
  • + Automatic fallbacks
  • + Pay-per-use pricing
  • + Model comparison features
  • + Free models available
  • + One API for 100+ providers
  • + Built-in load balancing and fallbacks
  • + Spend tracking and rate limiting
  • + OpenAI SDK compatible
Cons
  • − Added latency from proxy layer
  • − Markup on some model prices
  • − Depends on upstream availability
  • − Limited advanced features
  • − Adds a proxy layer (slight latency)
  • − Complex config for advanced features
Tags
apimulti-modelgatewayroutingpay-per-use
api-gatewaymulti-providerproxyopen-source

Want to compare different tools?

← Back to compare picker

Related Comparisons

OpenRouter vs Hugging Face →LiteLLM vs Hugging Face →OpenRouter vs Portkey →LiteLLM vs Portkey →OpenRouter vs Groq →LiteLLM vs Groq →OpenRouter vs Fireworks AI →LiteLLM vs Fireworks AI →OpenRouter vs Modal →LiteLLM vs Modal →OpenRouter vs Replicate →LiteLLM vs Replicate →