OpenRouter is a unified LLM API gateway that gives you access to hundreds of models from dozens of providers through a s...
About this product
OpenRouter is an AI model aggregator: one account and one API key give you hundreds of models from OpenAI, Anthropic, Google, xAI, DeepSeek, Qwen and more. Its API is OpenAI-compatible, so an app built on the OpenAI SDK can switch to any model just by changing the URL and key, and requests can fall back to another provider automatically when one is down. The website also has a chat interface for comparing models side by side.
Which plan to choose
Account: use the free models (with the :free suffix, rate-limited) or top up yourself.
US$100: credit added to the account and charged per model by actual usage, for paid models.
What OpenRouter is for
API · Intermediate
Hundreds of models, one key
Switch freely between GPT, Claude, Gemini, Grok, DeepSeek and more.
Create an API key on the Keys page at openrouter.ai
Set the base URL to https://openrouter.ai/api/v1
Switch models by name in "provider/model" format
Tools · Beginner
Plug into AI tools
Works with Cursor, Cline, Chatbox, translation extensions and more.
Choose OpenRouter (or OpenAI-compatible) in the tool's model settings
Enter your OpenRouter key
Pick a model and start
Compare · Beginner
Compare models side by side
Ask several models at once in the web chat and pick the best.
Open Chat at openrouter.ai
Add several models at once
Send one question and compare the answers side by side
Free · Beginner
Free models
Models with the :free suffix are free to call (rate-limited).
Filter the model list by Free
Use model names ending in :free
Mind the rate limits; best for testing and light use
Getting started
Create an API key: go to Keys → Create Key; you can set a spending limit per key.
Use it in apps: in Cursor, Cline, Chatbox and other OpenAI-compatible tools, set the base URL to https://openrouter.ai/api/v1, paste the key, and enter a model ID such as anthropic/claude-sonnet-4.5 (check the Models page for exact IDs).
Call it from code: use the OpenAI SDK with base_url set to the address above.
Track usage: the Activity page shows the model, tokens and cost of every call.
Chat on the web: pick several models in Chat and compare their answers to the same question.
Tips
Filter the Models page by price and context length to find the best value.
Create a separate key with a spending limit for each app, so a leak costs little.
Never post keys in public repositories or group chats.
[OpenRouter homepage]
[User dashboard]
Check before buying
An API key is as good as cash — keep it private and set spending limits.
② Click Get API Key to open the sign-in dialog and follow the prompts.
How it is delivered
🙋 Manual delivery⏰ Working hours UTC+8 09:00–21:00📧 Sent to your order email, also viewable once on the order page
What AI services does 5buyai.com support? Can I get an invoice?
Accounts, subscriptions and top-ups for ChatGPT, Claude, Midjourney, Gemini, Grok and other major AI tools. Invoices are available for AI orders paid in Chinese yuan (CNY).
How do I receive my order after paying?
Orders are delivered manually: after successful payment, the account or card code is sent to your order email during working hours (9:00–21:00, UTC+8). You can check your order details anytime on the order lookup page by order number, email or browser cache.
What payment methods are supported?
Alipay, WeChat Pay, USDT, and Credit Card payments. Credit card payments require first topping up your balance, and then using the balance to purchase products.
Do I need an account to buy?
No. You can check out as a guest and receive items by email; registering lets you manage orders, balance and invoices in one place.
Are prices shown in CNY?
All prices are listed in Chinese Yuan (¥). When paying with USDT the amount is converted automatically at the live rate.
Is there after-sales support?
After-sales support is available for some products, handled via live chat or the order dispute page. Accounts are virtual products: once delivered, no refunds are given unless there is an after-sales issue. CNY refunds and USD refunds are only made back to the original payment method, and USDT refunds are only made on the BSC network.
I am a business buyer and need to make a bulk purchase. How can I get in touch?
Please click the chat widget at the bottom-right corner to reach us and leave your email or other contact details. We will get back to you as soon as possible.
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Disclaimer
This is an independent third-party platform, not affiliated with, endorsed by, or authorized by any brand mentioned. We do not host any third-party login page and do not collect third-party credentials.
We just shipped our biggest improvement to our provider router since the founding of OpenRouter.
Before, we prioritized mostly based on price. The new router now rewards the best quality inference for the actual cost of a request, so requests stay cheap but are also fast and
