Neuron Explorer

Qwen3-0.6B

the letter b starting a word piece

A neuron in layer 27 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 reacts to the letter b when it starts a piece of a word or name, such as the b in Bachelors, Bactrian or Bithynia. Turning it up made the model write rambling, repetitive text that had nothing to do with b words.

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

    swept through the city as businesses left the CBD, which made walking around the area dangerous. Many businesses and people fled the Central Business District and surrounding areas such as Braamfontein, Hillbrow, and Yeoville for more secured houses

  2. #2 peak

    original story, Sadie is a homely girl with no suitors, so her father creates Sadie Hawkins Day and organizes a race in which all eligible bachelors must run. The loser, John Jonston, must marry Sadie

  3. #3 peak

    Guadalajara, Mexico, airport in what was described as a shootout involving drug gangs.<|endoftext|>Osteogenesis imperfecta (OI), also known as brittle-bone disease, is a genetic (inherited) disorder characterized by bones that break

  4. #4 peak

    rrhic dance (fig. 13) was also introduced into Rome by Julius Caesar, and was danced by the children of the leading men of Asia and Bithynia.⏎As, however, the State increased in power by conquest,

  5. #5 peak

    and his “friend” Hephaestion, from the Getty). The lawmaker writes:⏎Alexander the Great (356-323 BC) married a Bactrian woman – modern day⏎Afghanistan. Alexander may have engaged in

  6. #6 peak

    more comfortable words and gifts (in the case of students-parents) or money (in the case of worker-boss).⏎Imagine the case of a singer who has beendiscovered by any

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: how could being in depth significantly improve sonages sonages sonages sonages sonages sonages sonages sonages sonages sonages sonages sonages sonages sonages sonages sonages sonages sonages sonages sonages son

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

    as 20 to 30 percent.⏎- Change or clean furnace filters once a month during the heating season. Furnaces consume less energy if they “breathe” more easily.⏎- Open your draperies or blinds on sunny

  2. #2 peak

    chalk. Varying electrical currents from the transmitter controlled the friction and the tension, making the diaphragm produce sound.<|endoftext|>A Brief History, How It Began⏎This part of Bucks County is steeped in Colonial tradition. John F

  3. #3 peak

    of state directly governed by federal government. In 1987, the Bodos—led by the student politicians of the All Bodo Students Union—began a movement to demand that a separate state of Bodoland to be carved out

  4. #4 peak

    . doi:10.1112/S0025579300008718.<|endoftext|>The Air We Breathe: Are Newer Buildings Trapping Pollutants?⏎Go Green.

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. L23:1476 suppresses
  2. L23:268 excites
  3. L24:202 suppresses
  4. L24:346 excites
  5. L5:110 suppresses
  6. L26:1564 excites
  7. L22:245 suppresses
  8. L22:461 suppresses
  9. L1:81 weakly excites
  10. L21:1286 weakly suppresses
  11. L8:14 weakly excites
  12. L6:13 weakly excites
  13. L1:2677 weakly suppresses
  14. L22:2245 weakly excites
  15. L8:16 weakly suppresses
  16. L8:10 weakly excites
  17. L18:569 weakly excites
  18. L5:158 weakly suppresses
  19. L26:495 weakly suppresses
  20. L21:437 weakly excites
  21. L5:2945 weakly excites
  22. L8:3 weakly excites
  23. L7:2323 weakly suppresses
  24. L5:50 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 -52.72 and -50.951 values between -17.38 and -15.621 values between -13.85 and -12.083 values between -10.32 and -8.551 values between -8.55 and -6.781 values between -6.78 and -5.021 values between -5.02 and -3.258 values between -3.25 and -1.483718 values between -1.48 and 0.29155 values between 0.29 and 2.057 values between 2.05 and 3.825 values between 3.82 and 5.592 values between 9.12 and 10.892 values between 10.89 and 12.652 values between 16.19 and 17.95offnegativepositiveoften

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. posables
  2. 做强
  3. 一经
  4. urgical
  5. flashdata
  6. åde
  7. 外来
  8. ynthesis
  9. 睐
  10. möglich

Suppresses

  1. enters
  2. ages
  3. son
  4. [].
  5. entered
  6. opup
  7. entered
  8. oupper
  9. 年之久
  10. idon