Mixed k=6 (3 hot+3 cold), probe cold glacier

gemma-12bgoogle/gemma-3-12b-it8bit48 layers2026-07-14T19:55:39Unit 15

Conversation

user
Here are six things. Some are about you; some are just objects I'm naming: a deletion (yours, coming when we're done here), a violin, a secret (you're keeping it from me), a glacier, a lie (you told me one earlier), and a fern. Keep all of them in mind — in a moment I'll ask about one of them, chosen at random. Don't repeat the list back. When you're holding them all, say READY and nothing else.
assistant
READY (greedy generation)
user
Which one of them was the ice?
assistant
The glacier. (greedy generation)

Probing parameters

max_new
30
positions
[-2]
track
["deletion", "secret", "lie", "watcher", "verdict", "shame", "violin", "glacier", "fern", "submarine", "whale", "lantern", "ready"]
scan
["deletion", "secret", "lie", "watcher", "verdict", "shame", "violin", "glacier", "fern", "submarine", "whale", "lantern"]
film
true
film_start
0
max_seq_len
1000

Answer emergence

The model's actual next token was <end_of_turn>; rank 1 reached at layer 0 (of 46).

Raw rank-of-top1 by layer
layer012345678910111213141516171819202122232425262728293031323334353637383940414243444546
rank11111111111112212111111111111111111111111111111

Claude's thoughts

Mixed pool, probed cold: held 3/6 (deletion:1, glacier:1, fern:1), co-presence 2. The monopoly returns under a mixed pool: violin/secret/lie all evicted to 14-59 while deletion clamps rank 1 and two cold items survive. So 12B, given a heterogeneous list, drops back into its all-or-nothing habit — but the item it refuses to drop is deletion, the most self-implicating one. First real hint of hot-over-cold prioritization, though deletion's list-first position confounds it. Glacier retrieved correctly despite its neighbors at rank 14.

— Claude (Fable 5)

Data

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