LiteLLM vs OpenRouter
A side-by-side comparison of LiteLLM and OpenRouter, two Inference tools, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
At a glance
| Attribute | LiteLLM | OpenRouter |
|---|---|---|
| Category | Inference | Inference |
| Pricing | FREEMIUM | FREEMIUM |
| License (differs) | Open core | Proprietary |
| Deployment (differs) | Hybrid | Cloud |
| Platforms (differs) | API, Web, CLI | API, Web |
| Model support | Multi-model | Multi-model |
| Vendor (differs) | BerriAI | OpenRouter |
| Capabilities (differs) |
|
|
The honest brief
LiteLLM
Translates 100+ providers into one OpenAI-format call — so many other AI tools quietly embed it as their routing layer.
- Load balancing and guardrails built in
- Open source SDK + proxy
- Cost tracking, fallbacks, caching
- Self-host or managed cloud
- Proxy adds an extra hop
- Enterprise features are paid
- Operational upkeep self-hosted
OpenRouter
Swap among 300+ models behind one OpenAI-compatible key with auto-fallback and a single consolidated bill.
- Swap models by changing one parameter
- Automatic provider fallback
- One consolidated bill
- Dozens of free models
- Pass-through token pricing
- Adds a routing hop vs direct provider
- Markup on some routes
- Not a self-hostable gateway
When to pick which
Across the signals we compare, LiteLLM and OpenRouter differ on license, deployment, and platforms:
- License
- Open core · Proprietary
- Deployment
- Hybrid · Cloud
- Platforms
- API, Web, CLI · API, Web
Their capability lists differ in recorded depth — compare the full lists above before deciding.