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LiteLLM vs OpenRouter: catalog facts
LiteLLM	OpenRouter
Free Free to download and self-host.	Paid Pay-as-you-go pricing per model, with no subscriptions.
Self-hosted	Web
One OpenAI-style API for over 100 providers Cost tracking, load balancing and logging built in	One API for over 500 models Automatic fallback between providers
You run and maintain the gateway yourself Aimed at developers and teams rather than end users	Adds a third party between you and the model provider Requires an account and prepaid usage
Self-hosted	Web application, Hosted service
Open source	Closed source
License not stated	License not stated
No account needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked September 26, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.