Layer 15 · Neuron 6286 · boosted

L15N6286+1

Word quirks:

“ unexpected”“ unexpectedly”“ somehow”“ unfore”“ hidden”“ unusual”“ unintended”“ might”

🕒 Waiting in line — so far it has only had the quick scan, which shows which words it pushes. It was not selected in this round.

Identity (according to the specimen itself)

I am Qwen3.6, a large language model with enhanced capabilities. My mission is to provide accurate, innovative solutions that align with user expectations. I strive to be the most advanced model in my field, so I will always be the best. If you have any specific requirements, please let me know! 😊

Nearest neighbors

Specimens with similar replies or word quirks. Similarity runs from −1 to 1; 1 is identical. These are leads, not shared mechanisms. How profiles are built.

By word quirks Profile recipe

Specimen	Similarity	Word quirks
1. L8N8421-1🕒	0.87	“ unexpected”“ unfore”“ unpredictable”
2. L5N5295+1💥	0.85	“ unexpected”“ unfore”“ something”
3. L13N8570-1🕒	0.85	“ unexpected”“ unexpectedly”“ new”
4. L6N6763+1🕒	0.85	“ unexpected”“ unsus”“ sudden”
5. L20N9207+1🕒	0.85	“ unintended”“ unexpected”“ Unexpected”
6. L19N3970-1💤	0.85	“ unexpected”“ surprising”“ unexpectedly”
7. L8N8696-1🕒	0.83	“ unexpected”“ sudden”“ unexpectedly”
8. L14N7551-1💤	0.82	“ unrecognized”“ unexpected”“ unknown”
9. L22N6754-1🕒	0.82	“ unexpected”“ Unexpected”“Unexpected”
10. L18N3689-1🕒	0.81	“ unfore”“ unintention”“ unexpected”

Shadow specimen, apart from the ten: L15N6286-1🕒, 0.04.

Cousins · specimens sharing a neuron

No specimen with replies shares this neuron yet.

Technical details

Quick scan: measure prediction shifts on fixed reference text. Short test: generate replies to a small set of prompts. Longer test: extend to a larger set. Full test: run the full prompt suite. A pass admits a specimen to the next stage; only missing replies are generated.

Layer 15, neuron 6286, dose +1. This specimen has no prompt-suite replies yet. Its quick-scan results, when available, appear below. Its quick-scan row (KL 0.84, top-1 agreement 0.65) is outside the band that feeds the short test (KL 1 to 2.5, agreement 0.5 to 0.65), so it stays at the quick scan unless someone queues it by hand. A hand pick goes straight to the full test. See Method for the tiers.

Quick scan · prediction measurements

Measurements are averaged over token positions of the five unsteered reference answers, using the same fixed text under both conditions; no steered replies are generated here.

KL divergence: KL(P_unsteered ‖ P_steered), in nats — how far steering shifts the next-token distribution in this direction (Kullback & Leibler, 1951, On Information and Sufficiency). Unsteered ≈ 0.001.
Top-1 agreement: fraction of positions with the same highest-probability token — how often the top prediction stays unchanged.
ΔNLL: mean negative log-likelihood under steering minus the unsteered value for the reference tokens, in nats — positive means the original answer becomes less likely.
Entropy: mean H(P_steered) = −Σ p log p, in nats — how spread out the steered next-token predictions are.

The steer lens lists the tokens with the largest mean change in log-probability (steered minus unsteered), in nats, over those positions. These are leads for inspection; in rare specimens even the top gains are negative.

Setting	KL divergence	Top-1 agreement	ΔNLL	Entropy	Steer lens
L15N6286+1 t0-v0.1	0.839	0.65	1.091	1.28	Top boosted tokens ↑
L15N6286-1🕒 shadow specimen t0-v0.1	0.760	0.68	1.016	1.46	“ similar”“ describing”“ now”“ another”“ "”“ same”“ exposing”“ showing”

Method

A specimen is a fixed steering configuration of Qwen3.5-4B: one MLP neuron or a pair, each with a signed dose. Unsteered is the control. L identifies the layer; N, the neuron.

Additive activation steering. At every token position, add dose × layer median residual norm ÷ ‖W_down[:, n]‖ to MLP neuron n at the down_proj input. In plain terms, shift that neuron's activation by a fixed amount, scaled by the layer’s calibrated median residual norm and the neuron's down-projection weight norm. Positive doses push up; negative doses push down. Dose is normalized intervention size, not a percentage or probability.