Short answer
No current OpenAI Sora generation route is available: OpenAI says the Sora web and app experiences ended on April 26, 2026, and the Sora API was discontinued on September 24, 2026. Those dates have passed, so neither the consumer product nor the official API is a current option for creating new Sora videos—watermarked or otherwise. (help.openai.com)
For videos you already created, OpenAI says you can export your Sora content through its sunset export page. Its guidance does not say that this export removes a visible watermark, so don’t treat it as a watermark-free export option. (help.openai.com)
Official export and API: what is established?
OpenAI’s current discontinuation guidance gives the key answer: the consumer web and app experiences ended April 26, 2026, and the Sora API ended September 24, 2026. The same guidance describes exporting existing content; it does not document a current setting, plan, or license for downloading those videos without a visible watermark. (help.openai.com)
For historical context, OpenAI said at Sora’s launch that every generated video included visible and invisible provenance signals, and that videos embedded C2PA metadata. This is launch-era product information, not evidence that a watermark-free export was available later. OpenAI’s current provenance guidance lists video Content Credentials and notes that Sora is discontinued; it also cautions that provenance coverage can vary by product, model, export path, file type, and creation date. (openai.com)
To export content you already made, OpenAI directs users to sora.chatgpt.com/sunset and the Export option. That is a data-export route—not a documented way to remove a watermark or produce new Sora videos. (help.openai.com)
Is the third-party API example production-ready?
No—not on the evidence available here. A CometAPI article prints a request using options.download_without_watermark: true, but that example is not official OpenAI documentation, and the captured article does not demonstrate that the parameter works or show a successful response. More importantly, OpenAI says its Sora API was discontinued on September 24, 2026. Do not choose that sample as a current production Sora route. (help.openai.com)
The article’s claim that CometAPI offers an 80% discount also lacks a usable rate card in the captured content. Treat both the watermark behavior and pricing claim as unverified; neither establishes current API availability, authorization, or production suitability.
Already have a watermarked Sora video?
Overchat AI advertises a link-based watermark remover and claims it preserves quality, but those are vendor claims—not independently verified results. Its captured page also says an account is required in the processing flow while its FAQ says no sign-up is needed. The available evidence does not establish the tool’s reliability, authorization, privacy practices, or suitability for commercial work.
A third-party edit that removes a visible mark does not, by itself, establish that other provenance information is gone or grant usage rights. OpenAI describes provenance signals as information about origin, not proof that content is accurate, legally owned, or presented in the right context. Check the terms that apply to your video and use case. (help.openai.com)
If you only need your existing Sora files, use OpenAI’s stated export process and check the resulting files yourself. If you require a watermark-free deliverable, the cited official guidance does not document a current Sora export route that provides one. Don’t rely on an unverified remover or API parameter for a production commitment.
Bottom line
As of November 10, 2026, OpenAI’s Sora web/app and API are discontinued, so there is no currently available official Sora route for generating new videos without a visible watermark. Existing Sora content can be exported using OpenAI’s sunset process, but its guidance does not promise watermark removal. The third-party API parameter and remover claims cited here do not establish a verified production alternative.
Sources
What to know about the Sora discontinuation — OpenAI Help Center
Launching Sora responsibly — OpenAI
Provenance signals in OpenAI-generated content — OpenAI Help Center