> For the complete documentation index, see [llms.txt](https://docs.cherry-ai.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cherry-ai.com/docs/en-us/pre-basic/providers/openrouter.md).

# OpenRouter

OpenRouter is a**unified gateway**, which lets you access 200+ providers’ chat models with one key (GPT, Claude, Gemini, Llama, DeepSeek, etc.), billed by tokens, suitable for multi-model comparison / users who can’t register accounts one by one.

## Get an API Key

* Go to [OpenRouter](https://openrouter.ai/) Register account
* `Settings → Keys` → `Create Key`, copy `sk-or-...` Key
* Top up any amount (minimum $1)

## Configure in Cherry Studio

* Open `Settings → Model Services`, find **OpenRouter** Provider to enter the details page
* **API key** Fill in `sk-or-...`
* **API address** Default `https://openrouter.ai/api`, no need to modify
* Click **Get model list**, OpenRouter will return hundreds of available models

## Recommended usage

OpenRouter model IDs look like `<vendor>/<model>`:

| Example model IDs                   | Who it actually is        |
| ----------------------------------- | ------------------------- |
| `openai/gpt-4o`                     | OpenAI GPT-4o             |
| `anthropic/claude-sonnet-4`         | Anthropic Claude Sonnet 4 |
| `google/gemini-2.0-flash`           | Google Gemini Flash       |
| `meta-llama/llama-3.3-70b-instruct` | Meta Llama 3.3 70B        |
| `deepseek/deepseek-chat`            | DeepSeek V3               |
| `x-ai/grok-4`                       | xAI Grok                  |

## Applicable scenarios

* **Multi-model A/B comparison**: switch models freely under the same Cherry Studio Provider, no need to switch Providers
* **Avoid registering one by one**: one key, one invoice, and you can use 200+ models
* **Niche models**: many smaller vendors are only available on OpenRouter (such as Cohere, Reka, etc.)

## Relationship with the Anthropic protocol

By default, OpenRouter wraps all upstream models in the OpenAI protocol format. This means:

* ✅ Works for regular chat, knowledge bases, and quick assistants
* ⚠️ [Cherry Agent](/docs/en-us/cherry-studio/preview/agent.md) **Recommended to use directly** Anthropic / CherryIN; do not use OpenRouter (Agent requires the native Anthropic protocol)

{% hint style="info" %}

* OpenRouter adds a small markup on top of the original provider’s price (usually 5-10%), in exchange for "one account for all"
* Some models have a "free" version (free with rate limits); when filtering, pay attention to items with the `(free)` suffix
* See the detailed pricing table at [OpenRouter Models](https://openrouter.ai/models)
  {% endhint %}

***

### 💡 Get help and submit feedback

If you encounter any questions, bugs, or have suggestions for feature improvements during configuration or use, please refer to [Feedback and Suggestions](/docs/en-us/question-contact/suggestions.md) the official channels provided there.


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