Neuron Explorer

Qwen3-0.6B

the end-of-text token after a finished passage

A neuron in layer 19 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 the invisible marker the training data uses to show that one document has ended and a different one begins. Turning it up gave text that did not obviously relate to this job, so its role beyond the marker is unclear.

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

    to ask you another question. What is something you can do well?⏎I’d like to ask you another question. What is something you can’t do well?⏎<|endoftext|>Discover the cosmos! Each day a different image or photograph of our fascinating universe is

  2. #2 peak

    highlights the extraordinary visual adaptations of miniature marine creatures.⏎CONTENT PROVIDED BY⏎Congdon, O. (n.d.). How is a mantis shrimp’s vision like<|endoftext|>Part 2 - Those Who Are Unable to See the Fact of Creation⏎The

  3. #3 peak

    . Commonly referred to as the “love hormone,” oxytocin plays a major role in forming bonds and trust with others. Produced in abundance by breastfeeding mothers<|endoftext|>Every week in the art area of the classroom, your toddler will have the opportunity

  4. #4 peak

    a blood vessel is also called a thrombus. A thrombus can stop blood flow to parts of the body. Thrombosis can cause the following:<|endoftext|>Cry, the beloved country contrasts the rural and urban ways of life. How

  5. #5 peak

    called a hen. Juvenile turkeys are called poults. A group of turkeys is called a flock.⏎The benefits of raising white turkeys are<|endoftext|>In this thoroughly researched history, Graydon Meints tells the fascinating story of the

  6. #6 peak

    35 PM EDT. …⏎What is the Flower Moon 2020?⏎The Next Full Moon is the<|endoftext|>“It’s tricky to rock a rhyme⏎to rock a rhyme that’s right on

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 first time I was going to be a 't' in the title of the First People (A in the First People Forward' by the New England, the first time I is to be a 't' or a 'i'

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

    Geriatric Medicine study are available here: http://www.europeangeriaticmedicine.com/article/S1878-7649(13)00123-X/).⏎It is possible nursing staff underestimate the importance

  2. #2 peak

    of diabetes and cardiovascular diseases, and conducting continuous surveillance to monitor the trends in NCD prevalence, their risk factors, and treatments.⏎Copyright © 2020 The Royal Society for Public Health. Published by Elsevier Ltd. All rights reserved

  3. #3 peak

    that the impact of religious education on Taiwanese students' civic values was low, with the main focus being personal and spiritual life development. Copyright © 2021 selection and editorial matter, Kerry J. Kennedy and John Chi-Kin Lee;

  4. #4 peak

    by dredging activities, along with certain physico-chemical parameters of the water, were the major factors shaping phytoplankton communities.⏎- Abstract views: 1777⏎- PDF: 842⏎Copyright (c

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. L16:0 suppresses
  2. L18:2024 excites
  3. L18:569 excites
  4. L2:1083 weakly excites
  5. L3:56 weakly excites
  6. L0:2552 weakly excites
  7. L4:618 weakly suppresses
  8. L12:1178 weakly suppresses
  9. L3:744 weakly suppresses
  10. L18:2192 weakly excites
  11. L15:2363 weakly suppresses
  12. L6:68 weakly suppresses
  13. L11:29 weakly excites
  14. L15:1680 weakly suppresses
  15. L1:2223 weakly suppresses
  16. L3:1402 weakly suppresses
  17. L17:890 weakly excites
  18. L11:1995 weakly excites
  19. L8:86 weakly excites
  20. L0:2297 weakly excites
  21. L4:426 weakly excites
  22. L18:2450 weakly excites "all" after a comma in a trailing phrase
  23. L14:304 weakly suppresses
  24. L3:1434 weakly suppresses

Feeds later layers

  1. L24:788 excites
  2. L22:1685 excites
  3. L20:1706 weakly excites
  4. L22:734 weakly excites
  5. L27:962 weakly excites
  6. L24:357 weakly excites
  7. L24:1531 weakly suppresses
  8. L27:2142 weakly suppresses
  9. L22:1249 weakly suppresses
  10. L26:1552 weakly excites
  11. L26:96 weakly excites
  12. L20:1921 weakly suppresses
  13. L25:1532 weakly suppresses 'New' in place names
  14. L21:217 weakly excites
  15. L24:1155 weakly excites
  16. L25:1376 weakly suppresses
  17. L26:191 weakly suppresses
  18. L23:89 weakly excites
  19. L20:1672 weakly suppresses
  20. L20:2705 weakly suppresses
  21. L21:1967 weakly suppresses
  22. L20:1261 weakly excites
  23. L23:1014 weakly suppresses
  24. L20:2327 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.

2 values between -1.56 and -1.2812 values between -1.01 and -0.7340 values between -0.73 and -0.46254 values between -0.46 and -0.193023 values between -0.19 and 0.09517 values between 0.09 and 0.3649 values between 0.36 and 0.634 values between 0.63 and 0.912 values between 0.91 and 1.181 values between 1.18 and 1.451 values between 1.73 and 2.002 values between 3.64 and 3.911 values between 9.11 and 9.38offnegativepositiveoften

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. enci
  2. вен
  3. uations
  4. inate
  5. ém
  6. xmlns
  7. ences
  8. sen
  9. cbc
  10. UND

Suppresses

  1. ipes
  2. confirm
  3. akah
  4. (#)
  5. ولة
  6. consistency
  7. zag
  8. irror
  9. confirmation
  10. ubbles