Neuron Explorer

Qwen3-0.6B

"p" starting a word mid-token

A neuron in layer 27 of Qwen3-0.6B. Its strongest snippets are very consistent: they mostly peak on the same token. It is featured, so it has steering outputs.

What this neuron does

This neuron fires on a lone letter "p" that starts the second half of a word split in two, such as "p|early" or "p|ith". It is mostly quiet elsewhere. Turning it down makes the model repeat "difficulty", and turning it up makes it repeat "hard" or "partly".

Written by Claude from this neuron's activations and steering outputs. Confidence: low. Think it is wrong? Flag it (opens a prefilled issue on GitHub).

Fires most on

The text windows where this neuron's activation was highest. Amber marks positive activation; the outlined token is the peak. Hover a token for its strength.

  1. #1 peak

    chip your incisors. Be it a top, lower lip or tongue ring, they all create the same problem.⏎4. Unintentional grinding of your pearly whites⏎A lot of people remain unaware that the annoying habit of grinding their

  2. #2 peak

    rous region occupying the central portion of the hair shaft. It gives the hair its thickness and provides elasticity when stretched gently.⏎The medulla, also known as the pith, is the innermost layer of the hair shaft. However, not all

  3. #3 peak

    ted your appetite for interesting food facts, here are some previous posts you may find interesting:⏎- Furikake: Everything you need to know⏎- What is piment d’espelette?⏎- What is fennel?⏎- Sals

  4. #4 peak

    omas, a tumor that occurs at the part of the brain called the posterior fossa, which is the back base of the brain including the cerebellum, pons and brainstem. It can develop in both young children and adults but is

  5. #5 peak

    and cleaning of gums⏎Although everyone may insist on brushing, not everyone follows the right brushing technique or the frequency of cleaning your pearly whites. Stale food crumbs, fibres and even fruit seeds stuck between

  6. #6 peak

    above. Examples of breads that are low in simple carbohydrate include multi grain, whole grain, rye, sour dough, soy, pumpernickel and pita. Breads that are high in simple carbohydrates include,

Steering

Push this neuron up or down while the model writes, and watch what changes. The outputs were generated ahead of time, so nothing runs in your browser.

turned down a lot
Prompt

Here is something I have been thinking about lately: difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty difficulty

Most negative on

Where the activation went furthest below zero. Blue marks negative activation. Many neurons mean something different in each direction.

  1. #1 peak

    “ponte las pilas,” (get to work,) are the speak of Latino Pachucos of the 1940s, many of whom hailed

  2. #2 peak

    A bulk of cargo is broken down into groups that can be handled by the equipment available. Break bulk cargo is cargo that may be affixed to a pallet. Palletized cargo is organized in such a way as to facilitate the loading into the

  3. #3 peak

    a Supreme Court of Justice decision, expected in the coming days, on a complaint about Mexico’s current labeling system. The complaint was filed by consumer rights organization El Poder del Consumidor several years ago.⏎Confusing calculations and arbitrary portion sizes⏎

  4. #4 peak

    you can immediately call the Poison Center at 1-800-222-1222. They will provide assistance.⏎How To Grow Pothos Plant Safely?⏎Knowing about the toxicity of Pothos plants is

Connections

Show on map

Which neurons in earlier layers feed this one, and which later ones it feeds. Amber links excite, blue links suppress; longer bars are stronger.

Fed by earlier layers

  1. L23:2335 strongly excites
  2. L21:2280 excites
  3. L22:979 excites
  4. L23:1099 excites
  5. L25:2622 suppresses
  6. L18:103 suppresses
  7. L21:2739 excites
  8. L21:346 suppresses
  9. L20:322 suppresses
  10. L26:1241 excites
  11. L24:2491 suppresses
  12. L22:1153 suppresses
  13. L18:2348 excites
  14. L17:2292 weakly suppresses
  15. L19:2765 weakly excites
  16. L18:3049 weakly suppresses
  17. L18:1384 weakly excites
  18. L26:1564 weakly excites
  19. L25:2491 weakly suppresses
  20. L9:1651 weakly suppresses
  21. L21:1472 weakly suppresses
  22. L25:410 weakly excites
  23. L5:110 weakly suppresses
  24. L19:1382 weakly excites 'addition' in 'In addition to'

Feeds later layers

None: this is the last layer.

Activation histogram

How often this neuron fires at each strength. Almost always it does close to nothing (the tall bars in the middle); the snippets above are the rare moments it fired hard, amber for positive and blue for negative.

2 values between -17.33 and -15.991 values between -14.66 and -13.322 values between -10.65 and -9.312 values between -7.97 and -6.641 values between -6.64 and -5.304 values between -5.30 and -3.974 values between -3.97 and -2.6317 values between -2.63 and -1.292514 values between -1.29 and 0.041312 values between 0.04 and 1.3825 values between 1.38 and 2.727 values between 2.72 and 4.057 values between 4.05 and 5.392 values between 5.39 and 6.732 values between 9.40 and 10.741 values between 12.07 and 13.412 values between 13.41 and 14.741 values between 14.74 and 16.081 values between 26.77 and 28.111 values between 34.79 and 36.13offnegativepositiveoften

Logit lens

The words this neuron nudges the model toward (amber) or away from (blue) when it fires. A hint, not a label: many neurons work through later layers instead.

Promotes

  1. 具有一定
  2. offee
  3. icial
  4. hard
  5. �
  6. hawks
  7. eper
  8. ');?>⏎
  9. орм
  10. હ

Suppresses

  1. difficulty
  2. difficulty
  3. 困难
  4. 难度
  5. difficulties
  6. Difficulty
  7. 难
  8. Difficulty
  9. difficulté
  10. 困難