Neuron Explorer

Qwen3-0.6B

period in U.S. and initials

A neuron in layer 1 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 dot in abbreviations like "U.S." or an initial like "A.S.", where a period is part of a name rather than the end of a sentence. Its negative side shows up when a bracket closes a parenthetical phrase. Turning it up gave text that wandered off topic, so the steering doesn't clearly show what it does.

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

    suggested the name “Town of Stinnett” in honor of A.S. Stinnett, and this name was accepted by the Rock Island Railroad. The

  2. #2 peak

    .,” and 40 percent replied “don’t know.”⏎As the lives of English-language learners change because of attending U.S. schools and interacting with other children in this country, so, too<|endoftext|>There has

  3. #3 peak

    A notice in the Arkansas newspaper after she died gave the date of the auto accident, which had occurred<|endoftext|>Government issues smoky skies bulletin⏎Smoke from U.S. wildfires is impacting the south coast of B.C., including the Gulf Islands.⏎The

  4. #4 peak

    OBJECT.⏎SUBTRACTIVE SPACES AND THE DEEP WALL.⏎INDEX OF BUILDINGS.<|endoftext|>"The U.S. Food and Drug Administration announced today that it has approved the influenza vaccine formulation for the

  5. #5 peak

    more about career and technical education programs of study, talk to your counselor or career and technical education teacher.⏎Career/Technical Education can have positive impact on H.S. graduation rates⏎The chart below shows the impact taking 240 hours of

  6. #6 peak

    Report Demonstrates U.S. Cotton’s Environmental Progress, Opportunities⏎February 28, 2022⏎The report provides fresh insights for U.S. cotton’s extensive research program as the industry addresses impacts and works toward 20

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: I am a 22nd year old, I have a good heart, I have a good ... I am just too curious. I have a good time, I have a good ... I am just too curious. I am not a

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

    VRMS and IRMS sin φ perpendicular to VRMS as shown in Figure 4.56.⏎(i) The component of current ( I RMS cos φ) which is in phase with the voltage is called active component. The power consumed by

  2. #2 peak

    structure may be inherited after Recombination. For example, primordial magnetic fields may be responsible for very large scale filaments ( 100 Mpc) as discussed later. Moreover, the existence of periodic structures forming a lattice, actually

  3. #3 peak

    ilic substitution. It is when an electron-poor reagent (an electrophile, E+) reacts with the electron-rich aromatic ring ( a nucleophile) and substitutes for one of the ring hydrogen. Electrophilic Substitution has

  4. #4 peak

    ( 15 pF or 33 pF ) may be selected.⏎The

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. L0:178 suppresses
  2. L0:1301 suppresses
  3. L0:1224 suppresses
  4. L0:1354 weakly suppresses
  5. L0:592 weakly excites
  6. L0:1 weakly suppresses
  7. L0:1841 weakly suppresses
  8. L0:2493 weakly suppresses
  9. L0:2585 weakly excites
  10. L0:989 weakly suppresses
  11. L0:1036 weakly excites
  12. L0:1825 weakly suppresses
  13. L0:2920 weakly suppresses
  14. L0:512 weakly suppresses
  15. L0:2770 weakly suppresses
  16. L0:1374 weakly excites
  17. L0:1626 weakly suppresses
  18. L0:937 weakly excites
  19. L0:2308 weakly excites
  20. L0:2311 weakly excites
  21. L0:2083 weakly suppresses
  22. L0:2300 weakly excites
  23. L0:2752 weakly suppresses
  24. L0:432 weakly excites

Feeds later layers

  1. L11:1483 weakly suppresses
  2. L2:647 weakly suppresses
  3. L24:1417 weakly suppresses
  4. L15:2647 weakly excites
  5. L2:2832 weakly suppresses
  6. L2:2094 weakly excites
  7. L19:1635 weakly suppresses
  8. L14:1305 weakly excites
  9. L3:1248 weakly excites
  10. L15:1133 weakly suppresses
  11. L21:1875 weakly excites
  12. L13:456 weakly suppresses
  13. L7:533 weakly suppresses
  14. L18:2755 weakly excites
  15. L5:1948 weakly excites
  16. L26:1192 weakly excites
  17. L9:2816 weakly suppresses
  18. L24:2608 weakly excites
  19. L12:2849 weakly excites '-based' after a place name
  20. L8:1278 weakly excites 'relevant' before a noun
  21. L25:1938 weakly excites
  22. L17:103 weakly suppresses
  23. L2:346 weakly suppresses
  24. L23:316 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 -0.41 and -0.363 values between -0.36 and -0.306 values between -0.30 and -0.2519 values between -0.25 and -0.1968 values between -0.19 and -0.14204 values between -0.14 and -0.08717 values between -0.08 and -0.031816 values between -0.03 and 0.03689 values between 0.03 and 0.09231 values between 0.09 and 0.1483 values between 0.14 and 0.2039 values between 0.20 and 0.2514 values between 0.25 and 0.3111 values between 0.31 and 0.362 values between 0.36 and 0.422 values between 0.42 and 0.471 values between 0.47 and 0.531 values between 1.57 and 1.621 values between 1.73 and 1.79offnegativepositiveoften

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. oub
  2. egasus
  3. or
  4. orate
  5. rel
  6. arios
  7. 适应
  8. 后
  9. heit
  10. ис

Suppresses

  1. za
  2. <Resource
  3. dden
  4. .setEditable
  5. lda
  6. //<
  7. intColor
  8. newY
  9. ddb
  10. ="<