效率

$5,000 in AI Credits: A System Inventory In one month, spending roughly $5,000 on AI subscriptions and APIs (Claude Pro + Claude API + OpenAI API + Copilot Pro+ + Codex + Paseo + miscellaneous), I built out 18 major systems independently, with a total codebase of roughly 50,000+ lines of code (excluding auto-generated AI scripts). For comparison: the same functionality, developed from scratch by 2 full-stack engineers, would conservatively take 6-12 months and cost at least ¥300,000-600,000. ...

Claude Code got a quiet but important update in 2025: you can now plug in GitHub Copilot Pro+ as a backend. This means you can run Claude Code on a $19/month Copilot Pro+ subscription instead of paying separately for $20/month Claude Pro. But the two channels have stark differences—if you don’t understand them, you’ll hit gotchas. This article breaks down the key distinctions, plus the alias setup I’m using to make switching a one-command operation. ...

I’m currently paying $80/month to subscribe to two GitHub Copilot Pro+ accounts. That number seems steep at first, but after three months of use, I believe it’s the best ROI among all my AI subscriptions. This article breaks down the math so you can judge for yourself whether it’s worth it. What is Copilot Pro+? GitHub Copilot has three tiers: Tier Monthly cost Key difference Copilot Free Free Basic completions, 2000 completions/month Copilot Pro $10 Unlimited completions, GPT-4o model Copilot Pro+ $19 Unlimited completions + advanced model quota The key differences in Pro+: ...

Slow typing has long been my productivity bottleneck. Writing articles, replying to emails, capturing ideas — it’s not that my brain can’t keep up, it’s my fingers can’t. Until I started using Typeless. What is Typeless Typeless is an AI-powered voice input tool that supports macOS, Windows, iOS, and Android. The core idea is simple: you speak, it writes. Unlike clunky speech recognition from a decade ago, Typeless layers AI on top: ...

Most people have tried voice input and given it up—what comes out is a jumbled mess, takes time to clean up, and ends up slower anyway. That’s the old voice recognition problem. Typeless adds an AI layer on top of transcription to polish it, which basically solves it. From using it, three scenarios stand out. Scenario One: Drafting Technical Articles The most time-consuming part of writing technical articles isn’t typing—it’s the “from idea to first draft” phase. You have the structure in your head, but translating it into words hits a wall. You keep deleting and rewriting, and the whole thing just slows down. ...