How to use free AI models on OpenRouter

Search keyword on google about OpenRouter and goto OpenRouter.ai

Press Get API Key button to login to OpenRouter, we can use github or google account to do this

In the left-hand toolbar, select the "API Key" option, then create a new key and copy it. Please make sure to save your key, as it is displayed only once for copying.

Go to the models category to search for the model you want to use; it features most models from around the world. Simply select and copy the model you wish to use.