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LiteLLM vs OpenRouter

A side-by-side comparison of pricing, ratings, features, pros and cons.

LiteLLM
LiteLLMLitellmFree
OpenRouter
OpenRouterOpenrouterFreemium
DescriptionOpen-source proxy server unifying 100+ LLM APIs into one interface.Unified API giving developers access to 400+ AI models from 70+ providers through a single, OpenAI-compatible interface.
Category
DeveloperLitellmOpenrouter
Verified Status
Last UpdatedJul 2026Jul 2026
Pricing ModelFreeFreemium
Free PlanYesNo
Open SourceNoNo
Features
OpenAI-compatible gateway to 100+ LLM providers
Spend tracking, budgets, and rate limiting across providers
Automatic fallbacks and load balancing between LLMs
Virtual keys and team-level access management
Observability integrations (Langfuse, Arize Phoenix, Langsmith, OpenTelemetry)
Single API for 400+ models across 70+ providers
OpenAI SDK-compatible interface
Automatic provider failover
Custom data policies for provider access control
Prompt caching and sticky routing
Audio transcription support
Tags
proxyunified100-llms
openrouterunifiedgatewaymodelsopenaianthropic
Review Count00
Saves00
Views4013
Quality Score53/10045/100
Website StatusOnlineOnline
Websitelitellm.aiopenrouter.ai
Social Links3 linked3 linked
ScreenshotsNoNo
Pros
Free to use
Recommended by our editors
Free to use

Frequently Asked Questions

Both tools are closely matched on rating — the better fit depends on your specific needs. See the full feature and pricing comparison above.

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