Master AI in 2025
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Master AI in 2025: From Code to Career Development
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Expressing Hyperparameters Using Negative Integral Log2 Scale
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Sometimes I see papers with hyperparameter sweeps over 0.001, 0.003, 0.006, 0.01, etc. Many hyperparameters are better expressed in negative integral log2. Small values like learning rates directly, and values close to 1 like EMA factors and TD lambda / gamma with 1-2**val. It
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Model Quantization for Inference: Technical Questions
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Thank you! Notably I didn't yet include model quantization for inference. I have questions 🙂
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Modern software installation fails with compatibility issues
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I tried to install the new ones with some modern hack things but they don't even run
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Hugging Face Datasets Critical Infrastructure for AI Model Training
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Ty! huggingface work/infra/datasets are critical to projects like nanochat – to be accurate the source code of nanochat (e.g. at the $100 tier) is ~8KB of Python and ~30GB of fineweb/smoltalk.
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QK Norm and Embedding Weight Sharing in Model Optimization
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Very early on in the project I did a small run with/without QK norm and found that it helped. Same for the embedding weight sharing. I'll retry! I'm not tied to any details of the model and they weren't chosen any more carefully than a single run, I spent most of the time just
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Karpathy’s Fundamental AI Resource: Essential Guide for Beginners
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this is an amazing gift to everyone who's just starting straight to the point and has the fundamentals covered in the right order (no surprise though since it's karpathy)
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Karpathy releases new LLM training project under 8000 lines
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> karpathy just released a new project > in it, and in under 8000 lines of code you get to: > train the tokenizer using a new rust implementation
> pretrain a transformer llm on fineweb, evaluate core score across a number of metrics > midtrain on user-assistant -
AgentKit: Structure and Tooling for OpenAI Agents
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4/ Under the hood, AgentKit builds on OpenAI’s Responses API and Agents SDK. So if you’re already using those, AgentKit gives you structure & tooling on top.
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ChatKit Evals Agent Builder Beta Release and RFT Expansion
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Where it stands today: ChatKit & Evals are broadly available. Agent Builder & Connector Registry are in beta / limited release, especially for enterprise / internal users. Reinforcement fine-tuning (RFT) for reasoning & custom tool use is being expanded.