I could build 1 app for both iOS and Android in just 2 workdays with Claude Code about 2 months ago! That was before Opus 4.1 and Codex CLI with GPT 5 High. It

I could build 1 app for both iOS and Android in just 2 workdays with Claude Code about 2 months ago! That was before Opus 4.1 and Codex CLI with GPT 5 High. It would take less time now.