About didaiwritethis.ai

didaiwritethis.ai checks text against AI watermark-detection APIs to help you tell whether it was generated by a given AI model. We started with Anthropic's Claude, and plan to add other labs (OpenAI, Google, xAI, and others) as they release public watermark-detection APIs of their own.

Current status

Anthropic has not yet released a public watermark-detection API. Until it does, results on this site are produced by a placeholder that mimics the expected response shape and is clearly labeled as a mock result in the UI. Nothing you submit right now is being checked against a real Anthropic watermark signal.

How it works

1. Sign in with your email (a one-time link or code — no password).
2. Paste the text you want checked into the box.
3. We send that text to the relevant detector (Anthropic's, once available).
4. We show you the verdict in plain language.

What happens to your text

• Your submitted text is sent to the detector for that one check and is not stored by us afterward — not in our database, not in logs.
• We do keep a lightweight history per check: the timestamp, the word count, and the verdict — never the text itself.
• We don't use submitted text to train models, and we don't sell or share it with anyone other than the detection provider needed to run the check.

What a verdict means

A watermark-detection result is a probabilistic signal from the AI lab that issued it, not a certainty. "Watermarked" means the detector found a strong signal consistent with that model's output. "Not watermarked" does not prove a human wrote the text — it only means no watermark signal was found, which can also happen with edited, paraphrased, or otherwise altered AI text. "Inconclusive" means the signal wasn't strong enough either way.

Word limits & pricing

Every account gets 5,000 words of checks, total, for free. Only the text you submit counts against that limit — the verdict we return does not. Once you use your free words, you'll be able to purchase more; pricing for that is still being finalized.

Keeping this free of bots

Sign-in is required before you can submit anything, and we use Cloudflare Turnstile plus per-IP request limits to keep the service usable for real people without runaway API costs from automated abuse.