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Output stopping: Token ID zero is treated as a disabled stop token · case 05

Token ID zero is treated as a disabled stop token.

Member previewVariant 5 · 3 implementations · 6 checks per implementation

Case contract

Given generated token IDs and a set of stop IDs, truncate before the first stop ID. Zero is an ordinary valid ID. Return (prefix, found_bool).

Why this case matters

A deterministic output-control model isolates one finish or streaming boundary from any particular runtime.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixtureActualExpectedOutcome
zero stop[[4, 0, 7], false][[4], true]Failed

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