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Show HN: Cactus Needle 3: 8-29MB automation models can match DeepSeek V4 Flash

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Hacker News | Sep 18, 2026 | HenryNdubuaku

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One set of weights, every depth from 2 to 20 layers a model of its own: an intelligence ladder. Get started with Needle 3 customisationToday we release Needle 3: a foundation model for mobile, wearables, robots, smart home, automotive and microcontrollers. Every layer of Needle 3 is a sub-network with monotonically increasing capacity. The signature gives the argument types, the docstring is the tool description, and run() completes the loop: the model picks the call, Needle executes your function, feeds the result back, and returns the final response with the executed tool results attached as results.

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