// AI news · 2026-11-14 · Hugging Face Forum
Peanut v2: Stable Adam variant tested on CPU only
Peanut v2 is a CPU-only Adam variant with two modifications: damped first step and inflated initial v.
Published 2026-11-14 01:26 (Beijing time)Source Hugging Face ForumAuto-summarised, fact-checked against source
01Summary
It shows superior stability over AdamW in some seeds during long training on Fashion-MNIST, without significant performance gain. The project currently excludes GPU, CIFAR-10, NLP, and tabular data. The author invites community testing on diverse datasets and failure reporting.
Summarised from the original article by an open-source model, then checked automatically: every number and English name must appear in the source. The original article is authoritative.
02Key points
- Peanut v2 modifies Adam with damped first step and inflated v initialization.
- It maintains stability where AdamW collapses in certain seeds during long training.
- Testing is restricted to CPU-only, excluding CIFAR-10 and NLP tasks.
- Community feedback on failure cases is requested for documentation.
03Source
Peanut v2 - A more stable Adam variant, tested on CPU only. Try it on your dataset?
Hugging Face Forum · published 2026-11-14 01:26 Beijing time
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