01 / REQUEST → MODEL Choose the right model Decide whether a request can stay on a small model or needs a large one. 02 / CONTEXT → TOOL Select the next tool Pick the tool an agent should call next, without generating a full response. 03 / AGENT STATE → NEXT ACTION Know when to escalate Decide whether an agent should continue, retry, or stop and ask for review. 04 / TICKET → TEAM Support triage Route a customer request, check urgency, and score its tone.
Answers JSON API
FEZ · DECISION INSTRUMENT
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Context in. Probabilities out. Pick a use case or write your own, then run it to see the probability of every option.
Playground examples are illustrative, not an evaluation benchmark. Answers come only from the connected Fez checkpoint; there is no fallback model.
YOUR DATA. YOUR DECISION MODEL. FEZ.CHAT / EARLY ACCESS
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