Which AI video generators mark their output, and which plan removes it
Six generators publish enough to fill this table. Kling AI, LTX Studio, Pika and Runway tie removal of the visible mark to a paid plan; SceneMixer describes it as a settings switch with no plan named; Google's SynthID is an invisible mark with no removal documented. As of 2026-09-12.
| Generator | Free tier | Paid tier | Control | Machine-readable marking |
|---|---|---|---|---|
| Google (SynthID) | Not stated as a visible mark | Not stated as a visible mark | Not documented | Invisible, at generation |
| Kling AI | Brand watermark | Removal from Standard ($10/mo) | Plan benefit | Not documented |
| LTX Studio | No watermark-free output listed | No watermarking from Lite ($15/mo) | Plan benefit | Not documented |
| Pika | No watermark-free download | Watermark-free from Pro ($28/mo) | Plan benefit | Not documented |
| Runway | No watermark-free output listed | Watermark-free on paid plans | Plan benefit | Not documented |
| SceneMixer | Visible watermark, on by default | Same switch, no plan condition stated | Setting, no plan named | Not documented |
Inclusion rule. Generators whose own public pages state, in English, whether output carries a mark and what removes it. A generator that publishes no such statement is not given a row. Order. Alphabetical by generator name.
1Two different things get called a watermark
The first is a visible mark burned into the frame, which a viewer sees and a crop can remove. The second is a signal written into the file so that software can tell the output was generated, which a viewer never sees and a re-encode may or may not survive. Vendors document these unevenly. Four of the six rows above describe only the first kind, in a plan table. One row describes only the second kind. One describes the first and gestures at the second without naming fields.
That unevenness is the reason this table has a separate column for machine-readable marking rather than folding everything into a single yes or no. A cell saying not documented is a fact about what the vendor publishes, and it is recorded as such; it is not a claim that nothing is written into the file.
2The plan-tier pattern, and the exception
Four vendors treat removal of the visible mark as something a paid plan unlocks: Kling AI from Standard, LTX Studio from Lite, Pika from Pro, Runway on its paid plans. The pattern is consistent enough that its exception is worth naming. SceneMixer documents the same control as a setting and attaches no plan to it, giving as the reason that a platform which adds its own label would otherwise produce two labels on one frame.
For anyone assembling a series from more than one source, the practical consequence of the pattern is that identical prompts on different plans produce different deliverables. That is a question to settle before footage is collected rather than after.
3What each generator publishes
SynthID is recorded on its own page under implementers, because an invisible mark with no removal documented does not fit the same four fields.
4Sources
Each row links the vendor page it was read from. How the fields are defined and what counts as documented is on the protocol page.