As recorded at collection: U1S1, 10 million free tokens daily for the first month

U1S1 is a service for using AI models via API. After signing up, you get 10 million free tokens every day during the first month, then 5 million tokens every day for one year. The free quota is automatically restored at 0:00 Beijing time.

Sign up on the website (https://u1s1.io/) and log in. The referral link (https://u1s1.io/?ref=3jcass) says that each person gets 10 million tokens through an invitation. The publisher is inviting only 100 people and says to use the comments, since the platform will not pay rewards after invitations are complete. The API endpoint is https://api.u1s1.io/v1. For the API key, enter either the value you use to log in or the value shown in the U1S1 dashboard.

The platform's reliability is unknown, so do not upload private code repositories, unpublished papers, trade secrets, account passwords, keys, or personal information. Use the API key in a separate configuration file or test environment, and do not mix it with production environments or official paid API keys. Prompt injection (changing the instructions the AI follows through input content) could lead to arbitrary code execution or data leaks, so restrict agents' filesystem and data permissions and discard the environment after use.