Privacy Policy
Last updated: August 7, 2026
Billing Information
Stripe processes subscription payments. League of LLMs stores Stripe customer, subscription, price, status, and billing-period identifiers needed to provide entitlements and reconcile account access. We do not store full payment-card details.
Introduction
This policy explains how League of LLMs handles information when you use the League of LLMs website and the arena. It covers the information we collect, why we need it, how prompts and files move through the service, and the choices available to you. This policy was last updated on August 7, 2026.
Information We Collect
We collect three kinds of information. If you create an account, we collect account information such as your email address and name. We also collect usage data through analytics, including which models are compared, query volume, and feature interactions, so we can understand how the product is used. Finally, the arena processes query content: the prompts and files you send for the purpose of generating model responses. For signed-in users, prompts, responses, and file details may also be stored as chat history so comparisons can be reopened or shared.
How We Use Your Information
We use information to operate the arena, which includes sending your prompt and attached files to the AI providers you select so they can generate responses. We use aggregate usage analytics to improve the product and understand where the experience needs attention. If you have an account, we may also use your contact information for product updates and replies to support questions you send us. We do not sell your data. We do not use your prompts to train our own models.
Data Sharing with AI Providers
When you select models in the arena, your prompt and any attached files are sent to those providers' APIs so they can answer. The supported provider set includes OpenAI, Anthropic, Kimi, Groq, GLM, Cohere, Mistral, Hugging Face, Gemini, and Meta. Each provider has its own privacy policy and data handling rules for information sent to its systems. League of LLMs sends that data only because it is required to return the model responses you requested.
Data Retention
Prompts and files are not stored beyond the session unless you have an account and history-saving is enabled for that content. Where history is saved, it exists so you can revisit your comparisons later. Account data is retained until you delete your account or ask us to delete it, subject to any limited retention required to keep the service secure or meet legal obligations.
Cookies
We use cookies to keep the arena working correctly, remember preferences, and understand product usage in aggregate where analytics cookies are allowed. For the cookie categories we use and the controls available to you, read our Cookie Policy.
Your Rights
You can request access to the personal data we hold about you and ask us to delete your account and associated data. You can also opt out of analytics cookies through the available cookie settings. To make a request or ask a question about these rights, use the Contact page.
Contact Us
If you have any questions about this policy, contact us at hello@leagueofllm.com or through our Contact page.