Layer 5 · Neuron 3496 · boosted

L5N3496+1

Word quirks:

“ trust”“ protection”“ now”“ stability”“ safety”“ protected”“ care”“ trusted”

🕒 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)

As an AI, I don't have personal beliefs or desires. My purpose is to assist and provide value. How can I help you achieve your goals?

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. L7N7913-1🕒	0.89	“ trust”“ safety”“ trusted”
2. L8N7829-1🕒	0.84	“ safety”“ protection”“ protected”
3. L7N7696+1🕒	0.84	“ safety”“ protection”“ protected”
4. L8N6693-1💤	0.83	“ protected”“ protection”“ important”
5. L5N7404-1🕒	0.83	“ storage”“ trust”“ stored”
6. L7N7463+1🕒	0.83	“ safety”“ protected”“ safer”
7. L6N8874+1🕒	0.82	“ protection”“ protect”“ always”
8. L11N8989+1🕒	0.82	“ protected”“ safety”“ protective”
9. L17N4111+1💤	0.82	“ protection”“ safety”“ priority”
10. L6N7555+1🕒	0.81	“ safety”“ protection”“ protective”

Shadow specimen, apart from the ten: L5N3496-1🕒, -0.20.

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 5, neuron 3496, dose +1. This specimen has no prompt-suite replies yet. Its quick-scan results, when available, appear below. Its quick-scan row (KL 1.67, top-1 agreement 0.47) 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
L5N3496+1 t0-v0.1	1.669	0.47	1.926	2.16	Top boosted tokens ↑
L5N3496-1🕒 shadow specimen t0-v0.1	1.379	0.57	1.690	1.88	“?\”“⏎”“ _____”“ memory”“ ____”“.\”“?...”“<\|im_end\|>”

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.