A unified API and interface that provides access to 500+ AI language models from 80+ providers through a single OpenAI-compatible endpoint, with automatic fallback routing and pay-as-you-go pricing.
What is OpenRouter?
A unified API and interface that provides access to 500+ AI language models from 80+ providers through a single OpenAI-compatible endpoint, with automatic fallback routing and pay-as-you-go pricing.
SubcategoryLLM Routing and Model Aggregation
PriceFree
What is OpenRouter?
Introduction to OpenRouter — what it does and who it is for.
What do you need to run OpenRouter?
System requirements, OS support, and hardware needs for OpenRouter.
OpenRouter is a hosted API service, so there are no client-side memory, storage, processor, or software requirements to confirm.
| Operating system | APIWeb |
|---|---|
| Devices | APIWeb |
Programming languages
- ✓Go
- ✓Python
- ✓Shell/cURL
- ✓TypeScript
How much does OpenRouter cost?
Pricing plans, license type, and availability for OpenRouter.
OpenRouter uses usage-based, pay-as-you-go pricing that passes through per-token model costs plus a platform fee, alongside a free tier with rate-limited access to 25+ free models and a custom-priced Enterprise tier.
| Price summary | Free (Freemium) |
|---|---|
| License details | Pay-as-you-go usage-based pricing with a platform fee on paid usage; OpenRouter's own client SDKs are released under the Apache-2.0 open-source license. |
| Availability | Available |
| Plan | Description | Price |
|---|---|---|
| Free | 25+ free models with daily rate limits, community support, no platform fees | Free |
| Pay-as-you-go | Usage-based pricing across 500+ models from 80+ providers; 5.5% platform fee on credit purchases; BYOK program allows $25,000/month of list-price inference with no fee, 5% after | usage-based |
| Enterprise | Negotiable platform fees, SSO/SAML, admin controls, SLAs, dedicated support, higher BYOK allowance | custom |
What is OpenRouter used for?
Key features, use cases, and capabilities of OpenRouter.
OpenRouter offers a single OpenAI-compatible API for 500+ models across 80+ providers, with automatic fallback routing, provider price/performance comparison, and controls like prompt caching, budgets, and custom data policies.
Key features
- ✓Unified OpenAI-compatible API for 500+ models across 80+ providers
- ✓automatic fallback/failover routing when a provider is down
- ✓provider and model price/performance comparison and rankings
- ✓pay-as-you-go credit-based billing
- ✓Bring Your Own Key (BYOK) support for provider accounts
- ✓prompt caching and spend/budget controls
- ✓custom data policies controlling which providers receive prompts
- ✓free tier with 25+ free models and daily rate limits
Use cases
- ✓Building AI applications that need access to multiple LLM providers through one integration
- ✓benchmarking and switching between models for cost or quality without rewriting code
- ✓adding automatic provider fallback for production reliability
- ✓rapid prototyping across GPT, Claude, Gemini, and open-source models
Who should use OpenRouter?
Target users, industries, and ideal use cases for OpenRouter.
OpenRouter targets software developers and engineering teams building AI-powered applications who need flexible access to many LLM providers through one integration.
| Industries | AI/ML software development |
|---|---|
| Target audience | Software Developers And Engineering Teams Building AI-powered Applications |
| Integration complexity | Low |
How is OpenRouter deployed?
Deployment options, API, and hosting for OpenRouter.
OpenRouter is a hosted web/API service with no self-hosting option; it is accessed entirely through its API and OpenAI-compatible endpoint.
| API integration | ✓ |
|---|---|
| Open source | ✓ |
| Self-hosting | ✗ |
How do you get started with OpenRouter?
Installation and onboarding steps for OpenRouter.
Developers get started by creating an OpenRouter account, purchasing credits or using the free tier, and pointing an OpenAI-compatible SDK at the OpenRouter API endpoint.
What are the pros and cons of OpenRouter?
Balanced review of strengths and weaknesses of OpenRouter.
G2 reviewers praise OpenRouter's unified API access, easy model switching, and pay-as-you-go cost efficiency, while citing added latency, inconsistent provider performance, and unclear token pricing as drawbacks.
| Pro | Con |
|---|---|
| +Access to many AI models via one unified API key, removing the need for separate provider integrations (G2) | −Added latency compared to calling providers directly, due to middleware aggregation (G2) |
| +switching between models for cost or quality testing is a config change, not a rewrite (G2) | −inconsistent performance depending on the underlying provider routed to (G2) |
| +pay-as-you-go pricing with ability to route to cheaper providers (G2) | −limited clarity on token costs and why certain models cost more (G2) |
| +straightforward initial setup and integration (G2) | |
| +model comparison tools and fallback capabilities for developers (G2) |
Where can you learn more about OpenRouter?
Documentation, support, and official links for OpenRouter.
OpenRouter provides API reference documentation, official TypeScript, Python, and Go SDKs on GitHub, a Discord community, and an X/Twitter account for updates.
| Website | Website |
|---|---|
| Documentation | Documentation |
| Source code | Source code |
| Install | Install |
Frequently asked questions
What is OpenRouter?
OpenRouter — A unified API and interface that provides access to 500+ AI language models from 80+ providers through a single OpenAI-compatible endpoint, with automatic fallback routing and pay-as-you-go pricing.
Is OpenRouter free?
OpenRouter uses usage-based, pay-as-you-go pricing that passes through per-token model costs plus a platform fee, alongside a free tier with rate-limited access to 25+ free models and a custom-priced Enterprise tier.
What is OpenRouter used for?
OpenRouter offers a single OpenAI-compatible API for 500+ models across 80+ providers, with automatic fallback routing, provider price/performance comparison, and controls like prompt caching, budgets, and custom data policies.
Where can I get OpenRouter?
You can get OpenRouter via the official website, the install page, GitHub and the source repository. See the resources section on this page for direct links.
Who should use OpenRouter?
OpenRouter targets software developers and engineering teams building AI-powered applications who need flexible access to many LLM providers through one integration.
What do you need to run OpenRouter?
OpenRouter is a hosted API service, so there are no client-side memory, storage, processor, or software requirements to confirm.
How do you get started with OpenRouter?
Developers get started by creating an OpenRouter account, purchasing credits or using the free tier, and pointing an OpenAI-compatible SDK at the OpenRouter API endpoint.
How is OpenRouter deployed?
OpenRouter is a hosted web/API service with no self-hosting option; it is accessed entirely through its API and OpenAI-compatible endpoint.
Who developed OpenRouter?
OpenRouter is developed by OpenRouter, Inc..
What are the pros and cons of OpenRouter?
G2 reviewers praise OpenRouter's unified API access, easy model switching, and pay-as-you-go cost efficiency, while citing added latency, inconsistent provider performance, and unclear token pricing as drawbacks.
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