NewAnthropic is watermarking Claude’s text output from 2 August 2026.See which models carry it →

Remove Claude’s formatting from Ghost

Ghost preserves pasted HTML, so copying straight from Claude carries its class names — the ones containing “claude” — into a Ghost post. They are invisible while you read, but present in the source and readable by anyone who looks. Use the HTML card, or paste through a plain-text editor before pasting into the post.

Check yours first. Paste the text into the free checker and it lists every artifact with its exact position — no account, nothing uploaded, unlimited.

Check my text →

What Ghost keeps

The fastest fix

Use the HTML card, or paste through a plain-text editor before pasting into the post.

That handles the markup. It does not handle zero-width characters, non-breaking and exotic spaces, smart quotes or em dashes — those are text rather than formatting, so they survive the paste route above and every other one.

How to check it worked

Use View Source on the published post. Ghost stores HTML cards verbatim, so anything pasted in appears exactly as saved.

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