OpenAI API Platform vs OpenRouter
OpenAI API Platform: OpenAI's developer platform for building apps with GPT, image, audio and embedding models. OpenRouter: One API and key to reach hundreds of AI models from many different providers. Here is how they compare on features, pricing, platforms, pros and cons.
Quick verdict
OpenAI API Platform
Best for: Developers building AI features into apps and services.
Stands out for: Broad range of capable models; Mature docs and SDKs.
OpenRouter
Best for: Developers who want to switch or compare models without many integrations.
Stands out for: Huge model selection; Easy to switch models.
Side-by-side comparison
| Visit platform.openai.com (opens in a new tab) | Visit openrouter.ai (opens in a new tab) | |
|---|---|---|
| What it is | OpenAI's developer platform for building apps with GPT, image, audio and embedding models. | One API and key to reach hundreds of AI models from many different providers. |
| Pricing | PaidPay per use | Free + PaidSome free models; others billed per use |
| Free to use | No | Yes |
| Category | AI Models & Developer APIs | AI Models & Developer APIs |
| Editor rank | #1 in category | #6 in category |
| Made by | OpenAI | OpenRouter |
| Best for | Developers building AI features into apps and services. | Developers who want to switch or compare models without many integrations. |
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OpenAI API Platform vs OpenRouter: questions
Is OpenAI API Platform better than OpenRouter?
Neither wins for everyone. Our editors rank OpenAI API Platform slightly higher overall in AI Models & Developer APIs, but OpenRouter can be the better fit: Developers who want to switch or compare models without many integrations.
Which is free, OpenAI API Platform or OpenRouter?
OpenRouter can be used for free (free + paid), while OpenAI API Platform is paid.
Can I use OpenAI API Platform and OpenRouter together?
Yes. Many people keep both and pick per task, for example add a chat assistant to a website with OpenAI API Platform, and try several models with the same code with OpenRouter.