we’ve gotten some amazing lift out of applying our models to chip design: https://t.co/nDgBLca6H2
— Greg Brockman (@gdb) 13 octobre 2025
we’ve gotten some amazing lift out of applying our models to chip design:
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we’ve gotten some amazing lift out of applying our models to chip design: https://t.co/nDgBLca6H2
— Greg Brockman (@gdb) 13 octobre 2025
we’ve gotten some amazing lift out of applying our models to chip design:

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Master AI in 2025
From code to career Build strong foundations Master ML & Deep Learning Learn LLMs & MLOps Deploy real AI projects Transition to AI careers AI is no longer an option — it's a key skill.
What's your next step? #AI #MachineLearning
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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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Thank you! Notably I didn't yet include model quantization for inference. I have questions 🙂
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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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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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> llama-like architecture
> dense transformer > rotary only (no positional embeddings) > qk norm > untied embedding/unembedding > norm after token embedding > relu² mlp > no biases in linears > no learnable rmsnorm params > mqa > logit softcap > optimizer =
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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 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

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Instant4D
— AK (@_akhaliq) 13 octobre 2025
4D Gaussian Splatting in Minutes
videos display the reconstuction results from the sora generated videos. Each video is 9:16 aspect ratio with 5 seconds duration. The reconstruction process for each video takes around 5 minutes including preprocessing time pic.twitter.com/41yfckgJpt
Instant4D 4D Gaussian Splatting in Minutes videos display the reconstuction results from the sora generated videos. Each video is 9:16 aspect ratio with 5 seconds duration. The reconstruction process for each video takes around 5 minutes including preprocessing time