A benchmark of 1,400 factual questions across seven obscurity tiers that estimates black-box LLM parameter counts via log-linear scaling of accuracy with model size.
How It Works
You hear about a clever way to guess the hidden size of AI models by testing what obscure facts they know.
Link a service like OpenRouter so the tool can chat with any AI model you want to test.
Pick a model and launch the quick quiz with 1,400 tricky questions graded by difficulty.
Watch as it reveals the model's size in billions of parameters, plus strengths across easy-to-rare facts.
Dive into the results or quiz specific questions to understand what the model really knows.
Now you know the true knowledge power of any AI, even secret ones, with one simple test.
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