AIShortFilmHub

Entry rules for AI-made films

Entering a film made with Google Flow

Google Flow's own pages answer all four points entry rules turn on. Ownership: maker claims no ownership. Longest clip: up to 10 seconds. Joining clips: one clip extended. Marks: invisible watermark on all output. From 2 source pages, read 2026-09-25; no maker pays to be listed.

Four points, one toolHow Google Flow reads on the four points entry rules turn on, from ownership to the marks on the file.Google FlowOwnershipMaker claims no ownershipLongest clipUp to 10 secondsJoining clipsOne clip extendedMarksInvisible watermark on all output
Fig. 1 Each row is quoted below from the maker's own pages.
Longest clip per generation, this tool in boldRead from each maker's own pages.Longest clip per generation, this tool in boldHiggsfieldUp to 60 secondsUp to 60 secondsSceneMixerUp to 30 secondsUp to 30 secondsMidjourneyUp to 21 secondsUp to 21 secondsLTX StudioUp to 20 secondsUp to 20 secondsSoraUp to 20 secondsUp to 20 secondsGoogle FlowUp to 10 secondsUp to 10 secondsRunwayUp to 10 secondsUp to 10 seconds
Fig. 2 Read from each maker's own pages.
Longest clip in one generation, by tool, read 2026-09-25.
ToolLongest clip
Google FlowUp to 10 seconds
HiggsfieldUp to 60 seconds
LTX StudioUp to 20 seconds
MidjourneyUp to 21 seconds
RunwayUp to 10 seconds
SceneMixerUp to 30 seconds
SoraUp to 20 seconds

Inclusion rule. All 7 tools on the filmmaking-tools register. Order. Alphabetical by tool name.

Ownership
Maker claims no ownership
Longest clip
Up to 10 seconds
Joining clips
One clip extended
Marks
Invisible watermark on all output

1What its pages say

Google Flow is Google's filmmaking tool, built on its Veo and Gemini Omni models. Its help pages set clip lengths model by model, from 4 to 8 seconds on Veo 3.1 to 10 on Gemini Omni Flash 1.1, and let an 8-second Veo clip be extended. Every output carries an invisible SynthID watermark, and a visible one can be turned on from the profile menu. On ownership the help quotes Google's terms: Google won't claim ownership of content you generate.

2Why it is on the list

No rule on this site names it; its own pages describe it as a way to make films.

our AI filmmaking tool

Google Flow Help, Get started with Google Flow

Who owns what comes out: Maker claims no ownership

Google won't claim ownership over that content

Google Flow Help, Get started with Google Flow

Six festivals here make entrants warrant they hold every right in the film and five let them keep copyright while granting a licence.

Who owns what comes out, every tool beside the rules

Longest clip in one generation: Up to 10 seconds

4s, 6s, 8s, 10s video lengths

Google Flow Help, models and supported features

Six festivals here want three minutes or more; three minutes alone takes at least eighteen clips at Google Flow's longest length.

Longest clip in one generation, every tool beside the rules

Joining clips into a film: One clip extended

All Veo 3.1 8s videos can be extended

Google Flow Help, models and supported features

Running-time rules apply to the finished film, so the clips have to be put together somewhere.

Joining clips into a film, every tool beside the rules

Marks on the file: Invisible watermark on all output

All outputs generated in Google Flow using Veo, Omni, or Nano Banana include invisible SynthID watermarks.

Google Flow Help, Get started with Google Flow

Thirteen of the 25 festivals here ask, or keep the right to ask, about the AI an entrant used; the marks are what the tool leaves in the file either way.

Marks on the file, every tool beside the rules

3Other tools on the list

A dated reading of the maker's own pages, not advice; the festival's current rules and the maker's current terms govern. All tools.

4Pages read