Overwride vs OpenAI watermarking
Last updated 2 November 2026
OpenAI’s textGrain watermark provides a signal about model involvement. Overwride records the text before and after its rewrite so readers can examine the actual versions.
Published by Overwride. This comparison explains our own product alongside the provider’s published documentation.
What each approach answers
OpenAI’s rollout covers eligible ChatGPT and Codex text in the EU, plus API opt-in for supported models. It says the signal does not measure human contribution. Overwride addresses the practical question of what was submitted and what came back from a rewrite. OpenAI: EU text provenance rollout.
| Question | OpenAI textGrain | Overwride |
|---|---|---|
| Evidence provided | A provider-specific pattern in word choices. | A record containing the input draft and output rewrite. |
| Reader access | Text verification requires approval. | A record link opens without a reader account. |
| Human contribution | No measurement of human contribution. | Readers inspect the versions; no authorship score. |
| An unmatched text | No detected mark is not proof of human authorship. | The checker cannot tell whether Overwride was used. |
Provider details: OpenAI Help: provenance signals and OpenAI: Content Provenance API documentation. Record lookup: Overwride API reference.
Start with the evidence you need
If you need to examine an OpenAI provenance signal, use the supported provider verification process. Overwride does not substitute for that access or claim to detect OpenAI watermarks.
If you want to explain a writing workflow, a record can be more directly relevant. Imagine a consultant turning rough workshop notes into a LinkedIn post. A reader may want to know whether the specific recommendation appeared in the notes before the rewrite. The two versions help answer that narrower question.
What to keep private
The benefit of a readable record is also a publishing decision. Anyone who can open the record can inspect its original draft. Remove confidential client details from the draft before submitting it if you do not intend to share them. The privacy page explains record access.
What Overwride does not establish
An Overwride record does not reveal the history of text before submission. A draft could contain material from another person or tool. The record also does not certify watermark removal, originality, ownership, or factual accuracy.
For a useful disclosure, describe your actual process and link to the record when it adds context. “I supplied the notes and used AI to rewrite the post” gives a reader a claim they can compare with the saved versions. See the OpenAI watermark guide for rollout and detector details.