OpenAI’s “Sora 2” and its impact on Japanese anime and video game copyrights
The Emergence of Sora 2 On October 1, 2025, OpenAI announced the video generation model “Sora 2” and a social app for iOS that uses the same model. forest.watch This app allows users to generate videos with realistic textures and…
Claude Sonnet 4.5: Technical Evolution and Practical Applications of Next-Generation AI
Released in September 2025, Claude Sonnet 4.5 is the latest and most advanced model in Anthropic’s Claude 4 family. This model transcends the limitations of traditional AI assistants, achieving superior reasoning capabilities, practicality, and efficiency. This article provides a comprehensive…
Global AI Development Summary — September 2025
September 2025 underscored a turning point: the phase of foundational breakthroughs is giving way to one of deployment, governance, and societal integration. Advances in technology, infrastructure, policy, and strategy are now unfolding in parallel—spotlighting both opportunity and risk. Below is…
Comparison : GPT-5-Codex V.S. Claude Code
1. Overview and Background GPT-5-Codex: Background, objectives, and architecture (as known) Release & positioning Architecture & training methodology (public hints and inferences) Training data scale / types (publicly known or inferred) In short, GPT-5-Codex is a specialized, engineering-focused spin of…
【HRM】How a Tiny Hierarchical Reasoning Model Outperformed GPT-Scale Systems: A Clear Explanation of the Hierarchical Reasoning Model
This article summarizes and expands on a recent presentation by Singular Radio that explained the Hierarchical Reasoning Model (HRM) — an architecture that recently attracted attention for solving benchmark reasoning tasks with an extremely small parameter count. Singular Radio’s hosts…
GPT‑5‑Codex: OpenAI’s Agentic Coding Model
Introduction OpenAI’s GPT‑5‑Codex is a domain‑specific variant of GPT‑5 designed to act as an autonomous software‑engineering assistant. OpenAI introduced the GPT‑5 family in August 2025 and described it as a unified system that routes requests among different model variants (the standard…
AI Adoption Slowdown: Data Analysis and Implications
Introduction The recent U.S. Census Bureau data revealed an unexpected dip in AI tool usage among large enterprises. Specifically, the biweekly Business Trends and Outlook Survey (BTOS) found that the share of companies with over 250 employees using AI dropped…
Grokking in Large Language Models: Concepts, Models, and Applications
Basic Concepts and Historical Background Definition of Grokking: Grokking refers to a surprising phenomenon of delayed generalization in neural network training. A model will perfectly fit the training data (near-100% training accuracy) yet remain at chance-level on the test set…
AI Development — August 2025
Executive summary (as of Sept 2025) 1) Major model releases & technical announcements 1.1 OpenAI GPT-5 (released Aug 7) What shippedOpenAI introduced GPT-5 as a unified system: a fast “smart” model for most queries, a deeper reasoning model for hard…
Agent-Based Personal AI on Edge Devices (2025)
A structured, source-backed report on trends, capabilities, risks, and what to build next. Executive summary (high-level) 1) Technical foundations 1.1 Hardware platforms (edge-ready, 2024–2025) 1.2 Software stacks & toolchains 1.3 Architectural trend: hybrid (local + cloud) 2) Evolution of personal…




































