FA-98394 / Token sampling filters / Member archive
Token sampling: A banned token remains in normalized output · case 04
A banned token remains in normalized output.
Case contract
Return softmax probabilities for tokens not in banned; renormalize over survivors, returning empty if none survive.
Why this case matters
A finite, deterministic token-selection contract isolates one decoding operation from model inference and runtime behavior.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| ban high score | {"a": 4.5395807829510914e-05, "b": 4.5395807829510914e-05, "x": 0.9999092083843409} | {"a": 0.5, "b": 0.5} | Failed |
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