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Equation 6 · Part 2 · What Open Weights Actually Let You Verify

Symbol θ

f(θ,H)=f(θ′,H′)f(\theta, H) = f(\theta', H')
θ\theta

What this part means

the model’s parameters.

Its job in the formula

θ is an argument of the function-like quantity on the left; its role is set by that function’s stated inputs.

Where the article explains it

Here θ\theta denotes the model’s parameters and H denotes everything about the evaluation procedure that is not the model itself — the exact prompt template, the number of few-shot examples, whether a chat template is applied, how the model’s free-text output is parsed into a scored answer, and the decoding configuration.

The passage around this formula

Here θ\theta denotes the model’s parameters and H denotes everything about the evaluation procedure that is not the model itself — the exact prompt template, the number of few-shot examples, whether a chat template is applied, how the model’s free-text output is parsed into a scored answer, and the decoding configuration. A vendor publishes one value of s . An independent lab computing its own s' is implicitly testing whether f(θ\theta, H) = f(θ\theta', H') , and a mismatch could in principle come from either argument.

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Learn the underlying idea

A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.

Open the illustrated variables: a letter stands for a value guide →

See this notation across published equations →

The article lists its research sources here.