Karpathy Shares Claude Code Desktop and Opus 5.5 Medium Effort Setup
Original title: Andrej Karpathy’s setup from his HackerTube blog today:
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Andrej Karpathy revealed his current AI coding workflow, primarily using the Mac desktop app for Claude Code with Opus 5.5 at medium reasoning effort. This sparked industry discussion on whether terminal interfaces are suboptimal for coding agents and if maximizing reasoning intensity is cost-effective.
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Yuchen Jin (@Yuchenj_UW) · 2026-11-01 04
Andrej Karpathy’s setup from his HackerTube blog today:
- “I use Claude Code (desktop app for Mac).”
As I’ve been saying, terminal is the wrong interface for coding agents. Desktop apps are the best interface today.
- “I use Opus 5.5 on Medium effort as my default.”
There’s no point to use the smartest model at the highest reasoning effort for most tasks.
