Neuron Explorer

Qwen3-0.6B

abbreviation pieces in organisation names

A neuron in layer 19 of Qwen3-0.6B. Its strongest snippets are mixed: they peak on different tokens. It is featured, so it has steering outputs.

What this neuron does

This neuron fires on the short letters that make up an abbreviation or acronym, such as 'UK' in 'UK HFCA', 'US' in 'USDA' or 'Y' in 'YCDC', and on the start of 'fracking'. It goes negative on words inside country names like 'United States'. Turning it up produced loose text about kids and groups, so the steering does not clearly confirm this.

Written by Claude from this neuron's activations and steering outputs. Confidence: medium. 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

    fuel cell car fleet may hit top gear within five years, but only if there is enough investment in filling stations, the UK Hydrogen and Fuel Cells Association (UK HFCA) told Reuters on Friday.⏎Fuel cells convert hydrogen into electricity, with

  2. #2 peak

    certainly far more gas available than most thought possible just a few years ago. The development of hydraulic fracturing (‘fracking’) has raised US gas production dramatically, and helped double the estimated global gas

  3. #3 peak

    innovative programming such as the Family Innovative Supportive Housing (FISH) Program. A collaborative effort between the Children's Home of York, Y Community Development Corporation (YCDC), and the York County Office of Children, Youth, and Families (OC

  4. #4 peak

    in the United States has surged dramatically—thanks largely to technological advances such as high-volume hydraulic fracturing, more commonly known as “fracking.” This rapid increase has generated widespread debate, with proponents touting economic and

  5. #5 peak

    first petitioned to be listed under the Endangered Species Act (ESA) in 1995, and the U.S. Fish and Wildlife Service (USFWS) completed a 90-Day Finding of no warranted action in response

  6. #6 peak

    samples were first washed or peeled prior to being tested so the rankings reflect the amounts of the crop chemicals likely present on the food when is it eaten.⏎The USDA and FDA tests have produced hard evidence of widespread presence of pesticide residues on conventional crops.

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: the United Kingdom, the United Kingdom, the United Kingdom, the United Kingdom, the United Kingdom, the United Kingdom, the United Kingdom, the United Kingdom, the United Kingdom, the United Kingdom, the United Kingdom, the United Kingdom,

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

    osin. All of these new methods will have important applications for<|endoftext|>Synthetic cannabinoid use and related emergency department (ED) visits are skyrocketing in the United States. Here

  2. #2 peak

    <|endoftext|>National Conservative Political Action Committee⏎The National Conservative Political Action Committee (NCPAC; pronounced "nick-pack") was a New Right political action committee in the United States that was a major contributor to the ascendancy of

  3. #3 peak

    ,1940) was an Irish American Jazz Age novelist and short story writer, who is generally regarded as one of the greatest American writers of the Twentieth Century. Fitzgerald's The Great Gatsby was perhaps the great American twentieth century novel

  4. #4 peak

    Great American Novel" is the concept of a novel that is distinguished in both craft and theme as being the most accurate representation of the spirit of the age in the United States at the time of its writing or in the time it is set. It

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. L16:679 suppresses
  2. L14:698 suppresses
  3. L18:95 suppresses end of a document marker
  4. L18:2644 excites
  5. L13:1155 suppresses
  6. L16:715 excites
  7. L16:2181 weakly excites
  8. L18:1545 weakly excites
  9. L15:1576 weakly suppresses
  10. L15:10 weakly suppresses
  11. L18:1846 weakly suppresses
  12. L6:2599 weakly excites
  13. L16:1426 weakly excites
  14. L14:990 weakly suppresses
  15. L13:1800 weakly suppresses
  16. L0:378 weakly suppresses
  17. L8:1610 weakly suppresses
  18. L3:1202 weakly suppresses
  19. L17:868 weakly suppresses
  20. L12:1065 weakly excites
  21. L18:395 weakly excites
  22. L7:1537 weakly suppresses
  23. L16:676 weakly excites
  24. L4:1236 weakly excites

Feeds later layers

  1. L25:652 strongly excites
  2. L21:144 suppresses
  3. L27:129 excites
  4. L20:1338 suppresses
  5. L20:824 excites unclear: opposite pairs and citation digits
  6. L26:394 excites
  7. L20:1080 excites opening paren before an acronym
  8. L27:134 excites
  9. L21:111 excites
  10. L23:957 excites
  11. L21:837 excites
  12. L21:1291 excites
  13. L27:115 suppresses
  14. L25:446 excites
  15. L23:404 excites
  16. L26:291 excites
  17. L25:1685 excites
  18. L21:26 excites
  19. L27:680 excites
  20. L20:304 suppresses
  21. L26:1309 excites
  22. L24:142 weakly excites
  23. L25:1105 weakly excites
  24. L27:216 weakly excites

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.

1 values between -6.76 and -6.502 values between -6.50 and -6.251 values between -5.99 and -5.731 values between -5.73 and -5.484 values between -5.48 and -5.221 values between -5.22 and -4.962 values between -4.96 and -4.716 values between -4.45 and -4.2012 values between -4.20 and -3.947 values between -3.94 and -3.6815 values between -3.68 and -3.4311 values between -3.43 and -3.1716 values between -3.17 and -2.9120 values between -2.91 and -2.6622 values between -2.66 and -2.4025 values between -2.40 and -2.1453 values between -2.14 and -1.8947 values between -1.89 and -1.6357 values between -1.63 and -1.3893 values between -1.38 and -1.12128 values between -1.12 and -0.86176 values between -0.86 and -0.61278 values between -0.61 and -0.35501 values between -0.35 and -0.091081 values between -0.09 and 0.16722 values between 0.16 and 0.42428 values between 0.42 and 0.68146 values between 0.68 and 0.9336 values between 0.93 and 1.196 values between 1.19 and 1.441 values between 1.44 and 1.703 values between 1.70 and 1.963 values between 1.96 and 2.212 values between 2.98 and 3.241 values between 3.24 and 3.49offnegativepositiveoften

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. kids
  2. kid
  3. 债
  4. devs
  5. meds
  6. kids
  7. 's
  8. algo
  9. said
  10. says

Suppresses

  1. ParameterValue
  2. 中华民族
  3. HeaderComponent
  4. (environment
  5. 科学技术
  6. 中国人民
  7. Pathfinder
  8. removeObject
  9. _information
  10. photographic