# May 10, 2025

- **Vision Now Available in Llama.cpp**  
  - **llama.cpp** enables **multimodal input** through the `libmtmd` library, supporting tools like **llama-mtmd-cli** and **llama-server** for enhanced functionality in AI applications.

- **21 GB/s CSV Parsing Using SIMD on AMD 9950X**  
  - **Sep 0.10.0** achieves an impressive **21 GB/s** CSV parsing speed on the **AMD 9950X**, marking a **~3x improvement** since its initial release in 2023, driven by optimizations for **AVX-512** and enhanced CPU capabilities.

- **LTXVideo 13B AI video generation**  
  - **LTXV 13B** is a **13 billion-parameter AI model** by Lightricks, achieving **30x faster video generation** than its 2B predecessor through advanced multiscale rendering technology.

- **Adventures in Imbalanced Learning and Class Weight**  
  - **Class weighting in imbalanced learning may not significantly enhance model performance**, as empirical results suggest that optimal weights are only slightly above unweighted training, contradicting the common practice of using inverse proportion weighting.

- **[R] The Evolution of RL for Fine-Tuning LLMs (from REINFORCE to VAPO)**  
  - The evolution of **reinforcement learning (RL)** methods for fine-tuning **large language models (LLMs)** has progressed from classic techniques like **PPO** and **REINFORCE** to advanced methods such as **GRPO**, **ReMax**, and **VAPO**, incorporating innovations like reward shaping and token-level losses.

- **[P] UQLM: Uncertainty Quantification for Language Models**  
  - **UQLM** is a **Python library** that enables **zero-resource hallucination detection** at generation time, utilizing advanced **uncertainty quantification techniques** to enhance language model reliability.