Claude Code vs Codex: Stop Picking a Side, Start Picking a Task
In January 2026, Andrej Karpathy posted a thread about going from 80 percent manual coding to 80 percent agent coding in a single month. It pulled 40,000 likes in a week, and the replies split exactly down the middle: half pointing at Claude Code, half pointing at Codex. Six months later, that split is still the live debate, and most of the content about it is trash. It is either written by someone affiliate-linked to one answer, or it repeats folklore numbers that controlled tests have already debunked. This article is the opposite of that.
This is an AI-generated summary. ShortSingh links to the original source for the complete article.

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