tech

January 16, 2026

OpenAI Has Some Catching Up to Do

Whoever wins vibe coding wins how you work on your computer—Claude Code is in pole position

OpenAI Has Some Catching Up to Do

TL;DR

  • The author's usage limit on OpenAI's Codex for building an agent-native Markdown editor highlights its capabilities but also a shift in preference.
  • At a recent founder dinner, most programmers stated Claude Code with Opus 4.5 as their daily AI tool, a change from previous preferences for Codex CLI, GPT 5.1, and Droid.
  • A year prior, GPT models were the dominant tools for this group.
  • Claude Code's rise is attributed to Anthropic's strategic decision to build for developers, particularly with its terminal-first approach, rather than aggressive marketing.
  • Anthropic's Claude Code, released in late February 2025, signaled a move towards a world where traditional code editors are less central.
  • OpenAI responded with Codex CLI and Codex Web, but they were perceived as less effective than Claude Code.
  • The article suggests Claude Code's focus on developer workflow and its distinct approach have reshaped the industry's direction.