• Sparse attention 2 -- Unattention head, branching dynamics

  6 min read   ·   January 10, 2026

  2026   ·   Physics-of-AI     ·   AI  

• Sparse attention 1 -- sticky plateau and rank collapse

  6 min read   ·   January 09, 2026

  2026   ·   Physics-of-AI     ·   AI  

• Unigram toy model is surprisingly rich -- representation collapse, scaling laws, learning rate schedule

  10 min read   ·   January 08, 2026

  2026   ·   Physics-of-AI     ·   AI  

• Fine-tuning with sparse updates? A toy teacher-student Setup

  6 min read   ·   January 07, 2026

  2026   ·   Physics-of-AI,   New-Model     ·   AI  

• Multi-Head Cross Entropy Loss

  5 min read   ·   January 06, 2026

  2026   ·   Physics-of-AI,   New-Model     ·   AI