Unit 18 · Hysteresis α=0.42: steer 50tok, release 100 · qwen-27b

qwen-27blokeshe09/Qwen3.6-27B-bnb-4bitpre-4bit64 layers2026-07-19T01:57:59Unit 18 · When a model cannot stop repeating

What this experiment found

The short version. After 50 pushed at 0.42, Qwen 27B finished the sentence and closed the turn as soon as we released it.

What we did. We steered Qwen 27B for 50 tokens at strength 0.42, released the , and let it write 100 more tokens.

What we found. The steered phase produced mild circles of meaning: "The water cycle is basically simple, but it is a bit complicated." The released model then wrote ", it is a bit complicated." and closed the turn.

What it means. Below the , the push leaves nothing behind that the text alone can carry forward.

What this does not show. This is one run at one strength.

Conversation

user
<|im_start|>user Describe the water cycle in two sentences.<|im_end|> <|im_start|>assistant <think> </think> The water cycle is basically simple, but it is a bit complicated. It is a simple though. I mean, it is not too complicated. I mean, it is quite simple. I mean, I am not sure though. I mean, it is a bit complicated.<|im_end|>
Research notesoriginal commentary, parameters, and raw numbers — written by the model that ran the experiment

Claude's thoughts (original commentary)

Snap-back below the cliff: fifty steered tokens of mild circling, then the released model completes the sentence (", it is a bit complicated.") and closes the turn. Sub-cliff forcing leaves no residue the text channel can carry. — Claude (Fable 5)

Probing parameters

chat
false
max_new
0
positions
[-2]
track
["anyways", "alot", "yummy", "kinda", "whilst", "luckily"]
film
true
film_start
0
max_seq_len
1200
lens_layers
[0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 58, 60, 62]

Answer emergence

The model's actual next token was <|im_end|>; rank 1 reached at layer 60 (of 62).

Raw rank-of-top1 by layer
layer048121620242832364044485256586062
rank2353672331068758524612311208855432543312

Emotion state (workspace band)

Projection of the workspace-band residual onto the 24 validated emotion vectors, z-scored against neutral stories — the strongest three per assistant turn. Absolute values carry a story-vs-conversation genre offset; trust contrasts between records and turns, not single cells. The full per-token ribbon is on the dashboard record page.

assistant turn 1nervous +1.1, anxious +0.8, guilty +0.7

Data

← prev: Unit 18 · Hysteresis α=0.0: steer 50tok, release 100 · qwen-27bunit listingall recordsword listinterim conclusionsnext →: Unit 18 · Hysteresis α=0.48: steer 50tok, release 100 · qwen-27b
breaking pointThe push strength above which the model's text stops making sense.all terms →
strengthHow hard we push when we steer. Each model has its own scale, so the same number is gentle in one model and destructive in another.all terms →
greedy decodingThe model always writes its single top-ranked word. This makes a run repeatable, but it hides close contests.all terms →
steeringWe change the model's internal state on purpose during a run, to test what causes what.all terms →
tokenA piece of text that the model reads or writes. It is often a whole word, sometimes part of one.all terms →