Neuron Explorer

Qwen3-0.6B

'only' in 'not only ... but also'

A neuron in layer 18 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 word 'only' in the phrase 'not only', where a sentence is about to add a second point. Turned down, the model started repeating words like 'only' and 'both', which matches the same idea of paired contrasts.

Written by Claude from this neuron's activations and steering outputs. Confidence: high. 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

    it will be.⏎Don't forget to stretch⏎This will be one of the habits that your kids will really appreciate having learned, later on in life. Not only does this help reduce injury during sports, it will promote over all comfort and well

  2. #2 peak

    , and for wading birds grasslands offer nesting sites. Collisions between birds and aircraft, a.k.a. bird strikes, are a possible hazard. Not only do bird strikes lead to billions of euros in damages to aircraft, they

  3. #3 peak

    message to the students that you really do want to hear from all of them, not just the ones who raise their hands. Not only that, you’re giving each student a chance to consider the question, weigh arguments

  4. #4 peak

    if the electricity is imagined as water, the voltage corresponds to the water pressure, in simple terms, it is the power of electricity. Here, we will not only introduce to you where you’ll find volts in your daily life, but also list

  5. #5 peak

    mobile power sources as an option. As the need for uninterrupted power has grown, so too has the cost of traditional uninterruptible power systems (UPS). Not only are these systems expensive to purchase and maintain, but they also take up significant space

  6. #6 peak

    and should not be used outdoors in windy places; jet suction nozzles such as cedar or springs are more sensitive to water level changes. When using, not only should pay attention to water level changes, but also design in the pool body There

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: even more than not even even most even most even most most even most even most even most even most most even most even most even most even most even most most most most most even most most most most most most most even most most most most

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

    in a positive light. History reveals that this was not always the case. For centuries, Protestants engaged with Irish on their own terms, sometimes for academic reasons but often because it was their everyday language and an integral part of their lives. '

  2. #2 peak

    , which helps explain why they've been so easily and so largely forgotten.⏎On earlier occasions, too, the part played by Greece has been pivotal - sometimes positive but sometimes negative. And history has recently been repeating itself in other ways, for the

  3. #3 peak

    of young Protestants towards the Irish language, carried out through questionnaires and focus groups. Some of the students had attended a Gael-Linn language enrichment course, but the rest had little or no exposure to Irish. The results of this research are

  4. #4 peak

    those in turn were sometimes divided yet again, until the seemingly magical figure of 100 was reached in

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. L16:1374 excites
  2. L14:2232 excites
  3. L10:707 excites
  4. L17:1730 excites
  5. L10:339 weakly suppresses
  6. L4:661 weakly excites
  7. L5:1755 weakly excites
  8. L9:2802 weakly suppresses
  9. L5:2182 weakly excites
  10. L15:699 weakly excites
  11. L17:698 weakly suppresses
  12. L11:583 weakly excites 'both' after a paired subject
  13. L15:1671 weakly excites
  14. L4:962 weakly excites
  15. L14:144 weakly excites
  16. L1:1977 weakly suppresses
  17. L15:2336 weakly suppresses
  18. L13:1792 weakly suppresses
  19. L16:1059 weakly excites
  20. L13:2062 weakly excites
  21. L14:1394 weakly excites
  22. L4:151 weakly excites
  23. L10:49 weakly excites
  24. L12:1165 weakly excites

Feeds later layers

  1. L26:846 suppresses
  2. L24:291 suppresses
  3. L27:655 weakly suppresses
  4. L27:938 weakly excites
  5. L20:1684 weakly suppresses
  6. L21:1349 weakly excites
  7. L20:2030 weakly suppresses
  8. L20:2494 weakly suppresses
  9. L22:1410 weakly suppresses
  10. L25:1997 weakly suppresses
  11. L20:1519 weakly suppresses
  12. L22:477 weakly suppresses
  13. L20:1494 weakly excites
  14. L24:887 weakly suppresses
  15. L20:114 weakly suppresses
  16. L20:2909 weakly suppresses
  17. L19:2367 weakly suppresses
  18. L22:2150 weakly suppresses
  19. L27:948 weakly suppresses
  20. L21:280 weakly suppresses
  21. L25:1957 weakly excites
  22. L22:2219 weakly excites
  23. L26:1143 weakly excites
  24. L21:555 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 -13.08 and -12.032 values between -8.88 and -7.821 values between -7.82 and -6.773 values between -6.77 and -5.724 values between -5.72 and -4.674 values between -4.67 and -3.6221 values between -3.62 and -2.5741 values between -2.57 and -1.52237 values between -1.52 and -0.473413 values between -0.47 and 0.58103 values between 0.58 and 1.6327 values between 1.63 and 2.688 values between 2.68 and 3.739 values between 3.73 and 4.7911 values between 4.79 and 5.847 values between 5.84 and 6.893 values between 6.89 and 7.946 values between 7.94 and 8.992 values between 8.99 and 10.041 values between 10.04 and 11.092 values between 12.14 and 13.191 values between 26.85 and 27.901 values between 27.90 and 28.95offnegativepositiveoften

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. redict
  2. fert
  3. Fans
  4. &w
  5. inue
  6. ships
  7. ctions
  8. 的精神
  9. pires
  10. 一站

Suppresses

  1. both
  2. both
  3. only
  4. Both
  5. 既有
  6. mainly
  7. Both
  8. 不仅
  9. BOTH
  10. 更多的是