Claude Code spotted signs of ChatGPT-style code
A maker who had been with ChatGPT moved a $20 to Anthropic to try Claude Code. Claude Code made a strong impression. When asked to inspect a must-use plugin that might have been written by ChatGPT, Claude judged that it probably was.
The reasons were long comments explaining obvious code, no “Written by Claude Code” marker, and a serialized-integer LIKE pattern that Claude associated with ChatGPT-style . The notable point is that Claude Code was not only reading the code, but also comparing writing habits and code patterns across AI tools.
Key points
- A ChatGPT user switched a $20 to Anthropic to try Claude Code.
- Claude Code was used to inspect a plugin suspected of being written by ChatGPT.
- Claude pointed to verbose comments, a missing Claude Code marker, and a Forminator query pattern.
- The example suggests different can leave different code habits behind.