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How the Fruit Fly Brain Map Was Made: 7,062 Slices, 21 Million Images, 3 Million Edits
One female fly's brain was cut into 7,062 slices 35–40 nm thick and imaged for 16 months: 21 million images, 106 TB. AI traced every neurite; researchers, professional teams and a group of gamers then made 3,013,513 edits, yielding 139,255 neurons and 54.5 million synapses. This walks through each step and explains the 'Google fly brain': Google segmented this fly in 2019, but FlyWire used Princeton's own reconstruction.
googlefruit-fly+6
fruit-flyOct 3, 20269 min
40DiffusionGemma Doesn't Make Pictures: A 1,500 tokens/s Diffusion Language Model
Seeing "Diffusion" and thinking image generation is the easiest way to misread this technical report. DiffusionGemma generates text — it refines blocks of 256 tokens in parallel and hits roughly 1,500 tokens/s on a single H100. The more interesting part is how it was built: not trained from scratch, but fine-tuned from Gemma 4's MoE model using under 10% of the original training token budget.
llmopen-weights+5
ai-tutorialsAug 21, 20267 min
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