OpenRouter vs LiteLLM
Compare OpenRouter and LiteLLM on deployment, pricing, model support, and more.
OpenRouter
- Tagline
- Single API for 100+ LLMs — compare models, route to the best, pay per token
- Description
- OpenRouter is a hosted API that provides access to 100+ LLMs (GPT-4o, Claude, Llama, Mistral, Gemini, and more) through a single OpenAI-compatible endpoint. Pay only for what you use — often at lower prices than going direct — with automatic fallback routing and real-time model performance comparison.
- Category
- LLM Frameworks
- Pricing
- Freemium
- Metric
- 150 Models available (source)
- Link
- Visit
LiteLLM
- Tagline
- Python SDK and proxy to call 100+ LLMs with one interface
- Description
- LiteLLM is an open-source Python library and proxy server that provides a unified OpenAI-compatible interface for 100+ LLM providers. Call Anthropic Claude, Google Gemini, Azure OpenAI, Cohere, Groq, and others with the same `completion()` function. The LiteLLM proxy adds load balancing, rate limiting, and cost tracking.
- Category
- LLM Frameworks
- Pricing
- Free
- Metric
- 58,504 GitHub stars (source)
- Link
- Visit
| Attribute | OpenRouter | LiteLLM |
|---|---|---|
| Tagline | Single API for 100+ LLMs — compare models, route to the best, pay per token | Python SDK and proxy to call 100+ LLMs with one interface |
| Category | LLM Frameworks | LLM Frameworks |
| Pricing | Freemium | Free |
| Description | OpenRouter is a hosted API that provides access to 100+ LLMs (GPT-4o, Claude, Llama, Mistral, Gemini, and more) through a single OpenAI-compatible endpoint. Pay only for what you use — often at lower prices than going direct — with automatic fallback routing and real-time model performance comparison. | LiteLLM is an open-source Python library and proxy server that provides a unified OpenAI-compatible interface for 100+ LLM providers. Call Anthropic Claude, Google Gemini, Azure OpenAI, Cohere, Groq, and others with the same `completion()` function. The LiteLLM proxy adds load balancing, rate limiting, and cost tracking. |
| Metric | 150 Models available (source) | 58,504 GitHub stars (source) |
| Link | Visit | Visit |