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What is OpenRouter?
OpenRouter provides a single, unified API that routes requests to whichever underlying model you specify — from OpenAI, Anthropic, Google, open-source providers, and more — so you can switch or compare models without integrating each provider separately.
Key features
- Single API compatible with 300+ models across providers
- Automatic fallback routing if a preferred model is unavailable
- Transparent per-model pricing and usage tracking
- No separate account needed for each underlying model provider
- Rankings and usage stats showing which models are trending
How to get started
- Sign up at openrouter.ai and add credit to your account
- Generate an API key and pick a model by name
- Call the OpenAI-compatible endpoint with your chosen model
- Switch models by changing a single parameter, no re-integration needed
OpenRouter pricing
OpenRouter has no subscription. You buy credits and pay each model's own per-token rate through one API.
| Plan | Price | Best for |
|---|---|---|
| Model usage | Each model's published per-token price | One key across many providers |
| Credit top-up fee | Small percentage on credit purchase | Covers payment processing |
Some models are free or heavily discounted.
Our take: The draw isn't lower prices, it's one key across every model plus easy fallback routing.
Prices change often. Check the official site above for current rates before you commit.
Use cases
- Comparing multiple models without separate provider accounts
- Building apps that let end users choose their preferred model
- Adding automatic fallback if a primary model provider has issues
- Simplifying billing across many different model providers
OpenRouter vs. alternatives
| Tool | How it compares |
|---|---|
| OpenRouter | One API to route requests across 300+ models. |
| Together AI | direct hosting instead of routing |
| OpenAI API | single-provider, deeper feature access |
FAQ
Is OpenRouter free to use?
OpenRouter's plans: Usage-based, pay per token across providers. Pricing and free-tier limits change over time, so check the official site above for the latest details.
What is OpenRouter used for?
One API to route requests across 300+ models.
Who is OpenRouter best for?
OpenRouter is a good fit for comparing multiple models without separate provider accounts, or building apps that let end users choose their preferred model.
What are the alternatives to OpenRouter?
Commonly compared alternatives include Together AI and OpenAI API, see the comparison above for how they differ.
How much does OpenRouter cost?
There's no monthly fee. You pay each model's standard per-token rate, plus a small fee when you buy credits. Some models are available free.
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OLast reviewed: 2026-08 · Reviewed by AIKetra editors · How we evaluate tools