Black Cat Notes
SubscribeI’m Kuroneko — building in public. After years working with Japanese companies across manufacturing and IVD for the China market, I pivoted into AI and indie making to ship practical, calm software.
Here I share short takes on AI/product, notes from hands‑on work, and experiments in AI productization, iOS apps & small games, Rust tools, and Python data plumbing. Learn more on my About page.
Recent Posts
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DeepSeekMath-V2: Towards Self-Verifiable Mathematical Reasoning
DeepSeekMath-V2 scored 118/120 on Putnam 2024—surpassing the human record of 90—and achieved IMO gold level. The key innovation: a self-verification architecture where models learn to identify and fix their own proof errors.
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When a Flu Shot Is Cheaper Than Milk Tea: China’s Vaccine Price War
From a 5.5-yuan flu shot in Beijing to HPV and PCV13, a look at how overcapacity, overlapping pipelines, and policy-driven tenders are reshaping China’s vaccine industry and what it signals for pharma and diagnostics more broadly.
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GPT-5.1 Codex-Max: Altman’s Card After Gemini 3.0
OpenAI’s GPT-5.1 Codex-Max landed right after Gemini 3.0, topping SWE-bench while cutting costs and reframing what an AI coding assistant can be for working developers.
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KeepFlame: an offline habit tracker with animated themes
Why I built KeepFlame as a privacy‑first, offline habit tracker with animated themes, and what I learned from designing a more complex second app after Simple Warm Reminder.