Neuron Explorer

Qwen3-0.6B

end of document marker token

A neuron in layer 16 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 lights up on the invisible end-of-text marker that separates one web page from the next. When it was turned up, the model's text came out rambling and repetitive, with no clear link to the neuron's trigger.

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

    third World Cup turned out to be the last in the pre-World War II era. The world had to wait 12 years before the next tournament.<|endoftext|>An important class of non-Newtonian fluids are those composed of two or more

  2. #2 peak

    in close proximity to the⏎Venus. Note that the incised lines on the bird-form piece⏎are very much⏎like those on the Venus figure.<|endoftext|>Think Eat Save⏎Here’s some food for thought: Are you aware that a

  3. #3 peak

    and three arctic fox.⏎A visit to the Arctic Ring of Life is more than a fun hike. It opens our eyes to the life of the Inuit<|endoftext|>

  4. #4 peak

    eating a variety of nutrient-packed foods every day. Just be sure to stay within your calorie needs. For more information, check out www.mypyramid.gov.<|endoftext|>Nicaragua’s stunning beaches are more than tourist attractions

  5. #5 peak

    patient, however, it can almost completely restore vision. Consultation with an ophthalmologist can help determine whether your pet might be a good candidate for surgery.<|endoftext|>Major General Sterling “Pap” Price had

  6. #6 peak

    the world in unexpected ways, our day to day lives intertwined with the rest of nature.⏎The post was originally posted on the Natural History Museum of Utah blog.<|endoftext|>Although often used interchangeably, the words "fate" and "destiny

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: "So, if I can do this, then I can do it myself. So, so, I can do this, then, so, I can, so, so, I can, so, so, so, so, so

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

    zieh Hosseini Araghi, BSc, MPH, of the University of Birmingham, and colleagues concluded.⏎Disclosure: The researchers report no relevant financial disclosures.<|endoftext|>You are here⏎Edward Elgar (1857-1

  2. #2 peak

    5|⏎|ISBN: ||9781498738552 (DRM-PDF)|⏎|Read Aloud: ||not allowed|<|endoftext|>Under technical guidance and collaboration with the

  3. #3 peak

    to say that there is no evidence that cell phones increase your chance of getting a brain tumor. Further studies will surely be conducted in the coming years but at this point, you’re safe to use all the free night and weekend minutes that you want

  4. #4 peak

    6|⏎|ISBN: ||9781771882903 (DRM-PDF)|⏎|Read Aloud: ||not allowed|<|endoftext|>Nanoscale polymer capsules could one day be used to deliver chemotherapy

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. L15:1087 excites
  2. L15:2504 excites
  3. L14:295 suppresses
  4. L15:112 suppresses
  5. L15:1932 suppresses
  6. L15:455 excites
  7. L15:108 suppresses
  8. L15:2061 suppresses
  9. L15:183 suppresses
  10. L14:2950 excites
  11. L14:1490 excites
  12. L13:19 suppresses
  13. L15:2812 excites
  14. L14:2285 excites
  15. L15:586 excites
  16. L14:1605 suppresses
  17. L15:199 excites
  18. L15:2489 excites
  19. L15:707 suppresses
  20. L13:2185 suppresses
  21. L15:205 suppresses
  22. L15:856 excites
  23. L15:54 suppresses
  24. L15:192 excites

Feeds later layers

  1. L17:2351 excites
  2. L17:780 excites
  3. L18:2931 excites
  4. L18:2396 excites
  5. L17:1713 excites
  6. L19:236 suppresses
  7. L24:334 excites
  8. L17:1119 excites
  9. L17:1502 suppresses
  10. L18:669 excites
  11. L18:1171 suppresses
  12. L19:2487 weakly excites
  13. L25:2237 weakly excites
  14. L17:3047 weakly excites
  15. L17:1430 weakly suppresses
  16. L18:2680 weakly excites
  17. L20:1768 weakly excites
  18. L18:1834 weakly excites
  19. L17:2678 weakly excites
  20. L17:2271 weakly excites
  21. L23:434 weakly excites
  22. L20:1873 weakly excites
  23. L17:2611 weakly excites
  24. L17:1595 weakly suppresses

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 -1.86 and -1.681 values between -1.31 and -1.136 values between -1.13 and -0.956 values between -0.95 and -0.7721 values between -0.77 and -0.5846 values between -0.58 and -0.40148 values between -0.40 and -0.22856 values between -0.22 and -0.042458 values between -0.04 and 0.14316 values between 0.14 and 0.3331 values between 0.33 and 0.5110 values between 0.51 and 0.693 values between 0.69 and 0.871 values between 1.05 and 1.241 values between 1.24 and 1.421 values between 1.96 and 2.151 values between 2.69 and 2.871 values between 5.24 and 5.42offnegativepositiveoften

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. 不出来
  2. Trot
  3. keinen
  4. 不上
  5. nowhere
  6. stays
  7. 入库
  8. :hidden
  9. 没人
  10. 不管你

Suppresses

  1. han
  2. fi
  3. ue
  4. 降到
  5. translation
  6. redi
  7. 日上午
  8. omal
  9. 降至
  10. angled