Neuron Explorer

Qwen3-0.6B

the letter c splitting a word

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 'c' that starts a word fragment in the middle of a longer word, such as 'c' in 'Portlant-c-ements' or 'c-emeteries'. It tends to go quiet or flip to capital 'C' starts of words like 'Cataracts'. Turning it up made the model's text drift to unrelated topics, and turning it down made it repeat the word 'electric'.

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

    patched up.⏎Closer inspection revealed who was responsible: Azteca alfari, small, sand-colored ants known to build nests inside cecropia trees, which are widespread in Central and South America. Wcis

  2. #2 peak

    memorials available. Some of the many options to⏎consider include burying the remains in a family burial plot,⏎interring them in an urn garden that many cemeteries have, or⏎placing the urn in a columbarium niche

  3. #3 peak

    purposes."— Presentation transcript:⏎Types of Portland Cement Different types of portland cement are manufactured to meet various physical and chemical requirements for specific purposes. Portlant cements are manufactured to meet the specifications of ASTM C150. ASTM C

  4. #4 peak

    first of the nations of the earth.”⏎FUNCTIONS.—The functions of the national government are numerous and important. In adopting the national Constitution, the States delegated or ceded to the United States those powers which are necessary to the strength and greatness of

  5. #5 peak

    off faint, flickering light, similar to candles. Candles and devices using this oil-burning technique were the main means used to light homes, employed in candelabras, wall sconces, and elegant chandeliers.⏎It wasn

  6. #6 peak

    the year for both novice and veteran gardeners as green shoots emerge from bare earth, announcing the promise of beautiful blooms to come. But have you ever found yourself crouched beside a flower bed, puzzling over which plants exactly are pushing their

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: why do electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric electric

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

    delay their evolution.⏎Cataract - Like fogged-up lenses⏎Cataracts make our vision blurry. This happens because, as you get older,

  2. #2 peak

    8 or more hours⏎Severe stomach or belly pain⏎Vomited three or more times in 1 day⏎Signs of dehydration include:⏎- Crying without tears⏎- Dry mouth⏎- Increased thirst⏎- Eyes that appear

  3. #3 peak

    meanings⏎Blind/Visual Impairment. Blind refers to a total loss of vision. Visual impairment indicates partial vision, also referred to as partial sight.⏎Cerebral Palsy. A group of conditions resulting from damage to the central nervous

  4. #4 peak

    disc implant. Efforts to find a solution to these challenges have been ongoing for more than 40 years.⏎Several artificial disc replacements for both the neck (cervical) and back (lumbar) spine are currently being offered to

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. L23:619 excites
  2. L22:1155 suppresses
  3. L24:1117 suppresses
  4. L21:493 excites
  5. L10:1282 excites
  6. L22:2723 excites
  7. L12:2943 weakly suppresses
  8. L24:2019 weakly excites
  9. L20:417 weakly excites
  10. L19:2419 weakly suppresses
  11. L3:1599 weakly suppresses
  12. L4:108 weakly suppresses "or" offering a choice in web text
  13. L22:607 weakly suppresses
  14. L20:216 weakly suppresses
  15. L20:314 weakly suppresses
  16. L20:2643 weakly suppresses
  17. L4:1172 weakly excites
  18. L18:2143 weakly excites
  19. L20:2375 weakly excites
  20. L22:1550 weakly excites
  21. L20:1254 weakly suppresses
  22. L24:105 weakly suppresses
  23. L9:224 weakly excites
  24. L20:1438 weakly excites

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.

1 values between -34.41 and -33.271 values between -24.19 and -23.061 values between -23.06 and -21.921 values between -18.51 and -17.383 values between -12.84 and -11.702 values between -11.70 and -10.571 values between -10.57 and -9.431 values between -9.43 and -8.305 values between -8.30 and -7.162 values between -7.16 and -6.034 values between -6.03 and -4.896 values between -4.89 and -3.7611 values between -3.76 and -2.6233 values between -2.62 and -1.49326 values between -1.49 and -0.353377 values between -0.35 and 0.78115 values between 0.78 and 1.929 values between 1.92 and 3.052 values between 3.05 and 4.194 values between 4.19 and 5.321 values between 6.46 and 7.601 values between 7.60 and 8.731 values between 9.87 and 11.00offnegativepositiveoften

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. 项目经理
  2. 产品经理
  3. em
  4. бав
  5. metab
  6. emme
  7. 实战
  8. SetActive
  9. enz
  10. emulate

Suppresses

  1. (server
  2. ılan
  3. ream
  4. nặng
  5. electric
  6. lí
  7. (records
  8. 杠
  9. án
  10. Electric