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Sebastian Raschka has released an eight-video course titled “Building a Reasoning Model from Scratch.”

On October 24, 2026, Sebastian Raschka published an eight-part, over-11-hour hands-on video course on Python and PyTorch in Ahead of AI magazine (magazine.sebastianraschka.com), systematically covering the evaluation of inference models, scaling during inference, reinforcement learning (RLVR), and knowledge distillation, with all methods implemented using the pre-trained Qwen3-0.6B model.

Why it matters：This course is the author’s advanced technical educational offering, following “Building Large Language Models from Scratch.” It focuses on the core evolutionary direction of today’s mainstream LLMs—enhancing inference capabilities—covering the entire technical pipeline from setting up the foundational environment to GRPO reinforcement learning and self‑distillation. The author explicitly states that all implementations are “hand‑crafted from scratch,” fully reproducible, and highly instructive with significant engineering reference value.

Amazon SageMaker AI has launched a Multi-Step Reinforcement Learning (MTRL) framework, supporting end-to-end training of agents to accomplish multi-step tasks.

AWS has launched the Multi-Turn Reinforcement Learning (MTRL) feature, enabling users to train large‑model agents on SageMaker AI using full task trajectories and final outcome feedback, without requiring step‑level annotations. A end-to-end demonstration is provided using Wordle as an example, covering AgentCore deployment, data preparation, GRPO training, reward design, and cost analysis.

IBM releases the Granite time-series integration forecasting model: a four-model, zero‑fine‑tuning ensemble that delivers a robust default forecasting solution.

IBM Research has released the open-source Granite Timeseries Ensemble (v1), which integrates four types of pre-trained architectures—PatchTST-FM-r1/r2, FlowState, and Tiny Time Mixers—and supports probabilistic ensemble forecasting with zero fine-tuning. By default, it employs equal-weight probabilistic pooling (Probabilistic Ensemble), while also offering an IQR-based adaptive weighting scheme (IQR Ensemble). On the GIFT-Eval benchmark (as of the October 20, 2026 snapshot), its point forecast error (MASE = 0.683) slightly outperforms that of the best single model, with significantly improved overall robustness.

Google Cloud and NVIDIA have announced the official commercial availability of the NVIDIA Vera Rubin infrastructure: A5X instances are now live, focusing on large-scale reinforcement learning and agent reasoning.

Google Cloud and NVIDIA have announced that the A5X instances, built on the Vera Rubin architecture, will officially go commercial starting next month, initially available in the United States and later expanding to Europe. The platform integrates NVL72 GPUs, ConnectX-9 SuperNICs, the Virgo network, and fourth-generation liquid cooling technology, and is specifically designed for high-density computing workloads such as large-scale reinforcement learning and generative agent inference.

NVIDIA releases Kumo Forecast: a multivariate forecasting model that integrates pre-trained time-series representations, historical pattern retrieval, and interpretability.

NVIDIA has launched the open-source time-series forecasting model Kumo Forecast (formerly NV-Tesseract Forecasting), which is built on the MOMENT-1-large Transformer architecture. It supports both direct prediction and dual-path inference via Domain-Aware Representation and Retrieval (DARR), and includes a built-in interpretability framework that requires no modifications to the model structure.