Free tools, no key needed.
Each one runs on the live catalog. The chats give a few free turns a day; everything else is open.
LLM playground
Roleplay chat
AI scenario generator
Model comparisons
Price index
Daily real-model check
API status
Statement and receipt checker
Data files
- pricing-index.json and pricing-index.csv: every listed chat model’s prices and context window.
- proof.json and proof.csv: the daily check’s verdict and dates per model.
- llms.txt and llms-full.txt: the site and the catalog as plain text for an agent.