An LLM judge on every span is the expensive path

Hi there,

Running an LLM judge on every span is a token bill for a yes-or-no. Decision models: cheaper judges and faster guardrails is the session on the other shape: a small model that takes the input and a set of choices, and returns a probability on each choice.

We'll cover:

• What a decision model is, and how the input and output work
• A short demo of a decision model
• Using one as an eval judge
• Cost and speed compared with an LLM
• Using one as a real-time guardrail
• Where a decision model fits, and where an LLM is still the right call

You'll leave with how to read those probabilities, and how to use one as an eval judge and a real-time guardrail.

Hope to see you there.

Marine @ Arize

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