'tr' word-start fragment
A neuronOne of thousands of tiny dials inside each layer. It reads the text so far and produces a number, its activation, that nudges what the model writes next. in layerOne step in the stack the text passes through. Qwen3-0.6B has 28 layers, each with 3,072 neurons. 27 of Qwen3-0.6B. Its strongest snippets are very consistent: they mostly peak on the same token. It is featuredA neuron picked for the full treatment: steering outputs and a written explanation. About 3,000 of the 86,000 neurons are featured., so it has steering outputs.
What this neuron does
This neuron responds to the syllable 'tr' when it starts the second half of a split word, like 'tr|achea' or 'tr|unks'. Turning it up made the model repeat the word 'operations', and turning it down gave rambling text.
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 activationThe number a neuron produces for a token. Large positive means it fired hard; negative means it pushed the other way. was highest. Amber marks positive activation; the outlined tokenA piece of text the model reads at once: often a word, sometimes part of a word or a punctuation mark. is the peak. Hover a token for its strength.
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originating in the pharynx and serving to amplify sound (vocal sacs); (3) sacs that branch off from the widened posterior end of the trachea (in male striped seals) or from the esophagus (in
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humerus. The posterior fat pad is not seen because it lies in the olecranon fossa of the distal humerus, depressed superficially by the triceps tendon and anconeus muscle. Traumatic effusions will lift the posterior
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mother, measurement of two hormones in the mother’s blood and the scan findings of nuchal translucency thickness, nasal bone , and blood flow through the tricuspid valve of the fetal heart and ductus venosus and fetal abnormalities
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the famous general Kato Kiyomasa, 1561-1611) grips the reins as his horse rears in fright, trampling men beneath its hooves. At lower left, another warrior turns his head
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not prevent lanternflies from moving around in a landscape and returning.⏎When the nymphs first hatch, they will walk up the trunks of trees to feed on the softer, new growth of the plant. People
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white satin wraparounds, with head-dresses of coconut palm fronds and marigolds, danced in the temple complex to sacred tunes played by gamelan troupes.⏎Young men dragged a buffalo three times around the temple, with the
SteeringAdding a push along a neuron while the model writes, to see how its output changes. Turning it up or down.
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.
Here is something I have been thinking about lately: if I wanted to sendererererererererererererererererererererererererererererererererererererererererererer
Most negative on
Where the activation went furthest below zero. Blue marks negative activation. Many neurons mean something different in each direction.
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history of Eastern Europe and adjacent territories. The main and most numerous group is the Russian Cossacks (казаки) of the Don, Kuban, Terek and Ural rivers and the Ukrainian Cossacks (козаки
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bridement to remove loose edges⏎- Autologous chondrocyte implantation to create new cartilage and replace what is damaged⏎- Mosaicplasty to take healthy cartilage and use it to replace damaged cartilage⏎You
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environment properly, the consequences for people, the environment and the Northern Powerhouse economy can be disastrous."⏎Fires on Rivington Moor and Winter Hill, near Chorley, were declared as major incidents as flames spread over dry ground during the
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underlying infection(s) but the immune dysfunction as well. Treatment can include antibiotics, immune modulating therapies, such as Intravenous immunoglobulin (IVIG), plasmapheresis and steroids. Anti-inflammatories, anti-histamines
Connections
Show on mapWhich neuronsOne of thousands of tiny dials inside each layer. It reads the text so far and produces a number, its activation, that nudges what the model writes next. in earlier layersOne step in the stack the text passes through. Qwen3-0.6B has 28 layers, each with 3,072 neurons. feed this one, and which later ones it feeds. Amber links excite, blue links suppress; longer bars are stronger.
Fed by earlier layers
- L26:1676 strongly suppresses
- L24:1269 strongly excites
- L21:2401 suppresses
- L24:2197 excites
- L22:2019 excites
- L26:1564 excites
- L24:2619 suppresses
- L22:2340 excites
- L26:1703 excites
- L24:385 excites
- L26:123 excites
- L21:781 weakly suppresses
- L24:8 weakly suppresses
- L8:16 weakly suppresses
- L20:1097 weakly excites
- L20:1138 weakly suppresses
- L17:2710 weakly suppresses
- L18:569 weakly excites
- L25:1048 weakly excites
- L20:1814 weakly excites
- L8:14 weakly excites
- L6:601 weakly suppresses
- L23:2111 weakly excites
- L8:4 weakly excites
Feeds later layers
None: this is the last layer.
Activation histogramA chart of how often a neuron takes each activation value.
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.
Logit lensReading which output tokens a neuron pushes toward or away from, straight off its output weights, before the later layers have their say.
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 layersOne step in the stack the text passes through. Qwen3-0.6B has 28 layers, each with 3,072 neurons. instead.
Promotes
- operations
- operation
- Operation
- operations
- Operations
- operation
- Operation
- 操作
- (operation
- Operations
Suppresses
- bruar
- issing
- eria
- 氪
- eri
- ansa
- er
- po
- ◄
- 眼里