Google Flow (Veo 3.1) vs Marble (World Labs)

Trailers & marketing · checked · Compare different tools

Google Flow (Veo 3.1) ranks higher in Trailers & marketing (#2 vs #6). How we score

How they differ

How each one works, from its own docs.

Google FlowShot-by-shot AI filmmaking studio

Built on Google's Veo and Omni models around a shot workflow (frames, ingredients, extend, Scenebuilder). Omni adds chat-driven edits of uploaded footage. Kling and Seedance are single-generator rivals. Runway and Luma are multi-model suites.

Best for: Storyboarding and producing short trailer sequences shot by shot, keeping characters consistent with ingredient images.

MarblePrompt-to-3D world generator

Gives you a walkable 3D space, not a picture, and you edit the world itself. HunyuanWorld 1.0 does similar panorama-to-3D work but you host and script it yourself.

Best for: Explorable 3D environment drafts, previs and trailer flythroughs; treat output as a starting point, not finished, optimised level geometry.

Workflow

Google Flow

Marble

Where you use it

Web app at flow.google.com (labs.google/flow redirects there), included with Google AI subscriptions. Has a built-in Flow Agent.

Web app (desktop recommended, limited on mobile) and the World API

You give it

Text prompts, start and end frames, ingredient reference images (uploaded or made with Nano Banana), uploaded video up to 60 seconds for Omni edits, voice presets.

Text, one image, several images placed front/back/left/right, a 360 panorama, video under 100MB, or a Chisel blockout of boxes and planes

You get

Veo 3.1 clips of 4–8 seconds or Gemini Omni Flash clips of 4–10 seconds (720p, 360p draft), 16:9 or 9:16, with sound. Scenes download from Scenebuilder.

An explorable 3D world in about 5 minutes (draft about 20s): Gaussian splats (SPZ/PLY), panorama, collider mesh, high-quality GLB mesh (Pro), flythrough video

How you steer it

Model per shot (Veo 3.1 Lite/Fast/Quality, Omni Flash), frames-to-video, ingredients-to-video, conversational video-to-video edits, Flow Agent for multi-step tasks, no-code custom Tools.

Chisel separates layout from style; direction-tagged image inputs; text prompt sets the look

How you refine results

Extend Veo clips, edit through up to three chat turns, keep versions in History, save frames as new start frames, and arrange and trim shots in Scenebuilder.

Select part of the panorama and describe a change, click to expand into unexplored areas, generate variations, Compose several worlds together

Pick Google Flow (Veo 3.1) if you want

  • Native dialogue, SFX and ambience generated with the picture
  • Gemini Omni Flash (same Flow plan) is #1 on AA image-to-video (silent) and #4 with audio, useful for animating key art or screenshots
  • Commercial use allowed on every plan, including free

Watch out: Veo 3.1 itself ranks #19-31 on AA and lost to Seedance and Kling in two same-prompt tests; Clips capped at 8 s for Veo 3.1 (10 s for Omni Flash, extendable to 40 s)

Pick Marble (World Labs) if you want

  • Explorable 3D environments and flythrough shots

How they score

Each signal is out of 100. Higher wins.

Google Flow (Veo 3.1)Marble (World Labs)
Benchmarks
83
No data
Expert reviews
53
No data
User reports
No data
No data
Game-dev fit
72
40
See all 8 sources

Google Flow (Veo 3.1)

Marble (World Labs)

No independent sources yet.

Vendor claims (not scored): Google Flow (Veo 3.1): Flow offers Veo 3.1 Lite/Fast/Quality plus Gemini Omni Flash 1.1, which adds 10 s clips, start and end frames, editing of uploaded and generated video, custom voices and cheaper 360p drafts; all users can access Omni models. source · Google Flow (Veo 3.1): Google AI Plus, Pro and Ultra plans include Flow credits 'with access to Gemini Omni Flash'. source

At a glance

Google Flow (Veo 3.1)Marble (World Labs)
Paid plans fromUS$4.99/moUS$20/mo
Free planFree planFree plan
Engine pluginsFile export onlyUnityUnreal
API / MCPAPIAPI
Commercial useAllowedRestricted
Full comparison: every fact, with sources
Tool
Google Flow (Veo 3.1)Commercial use allowed
Marble (World Labs)Restricted (see notes)
Best for
Shots with native audio; animating key art and screenshots
Explorable 3D environments and flythrough shots
What it does
Google's Flow filmmaking studio (also the Gemini app) with Veo 3.1 and the newer Gemini Omni Flash video models; text/image/frames-to-video with native audio for trailer shots.
Generates persistent 3D worlds from text, images, video, 360° panoramas or blocked-out 3D layouts. Exports Gaussian splats and GLB meshes, and records camera flythrough videos.
Verdict
Strong for trailer shots with native sound and for animating key art via Gemini Omni Flash, which ranks near the top of independent image-to-video boards; Veo 3.1 itself is mid-to-low ranked, capped at 8 s clips, and safety filters can block weapon scenes.
For blocking out explorable environments or flythrough shots; exports go to Unity/Unreal via Gaussian-splat plugins, and commercial rights are listed on Pro.
Tasks●
Trailers & marketing
Level & terrain generation, Trailers & marketing
Engines●
Any (standard file export / engine-agnostic)
UnityUnreal
Free plan
Free plan 50 Flow credits per day (a few Veo 3.1 Lite or Omni Flash clips); video may be unavailable to non-subscribers 2-5 PM UTC
Free plan Up to 4 world generations
Pricing
US plans: Google AI Plus US$4.99/month (200 Flow credits), Google AI Pro US$19.99/month (1,000), Google AI Ultra US$99.99 or US$199.99/month (10,000 or 25,000); everyone also gets 50 Flow credits a day. Per generation: Veo 3.1 Lite 10 credits (5 on Ultra), Veo 3.1 Fast 20 (10 on Ultra), Veo 3.1 Quality 100 (8 s clip), Gemini Omni Flash 720p 7-15 (4-10 s). API: Veo 3.1 on Google Cloud (Gemini Enterprise Agent Platform, ex-Vertex AI) US$0.40/s with audio or US$0.20/s silent at 720p/1080p (US$0.60/US$0.40 at 4K); the Gemini API Veo 3.1 preview shut down on 22 Oct 2026 and Gemini Omni Flash there costs about US$0.10/s of 720p video. source
Free $0/month (7,000 credits, up to 4 world generations). Standard US$20/month (20,000 credits), Pro US$35/month (40,000 credits; commercial rights) and Max US$95/month (120,000 credits). Top-up credits from US$5 on Standard and above. Enterprise custom. The World API is billed separately. source
Export formats●
MP4 at 24 fps, 720p/1080p/4K (Agent Platform spec); Flow downloads video files or 270p GIF, with free 1080p upscaling for subscribers and 4K upscaling on Ultra only
SPZ and PLY Gaussian splats; GLB collider and high-quality meshes source
Commercial use●
Commercial use allowed
Google Terms of Service (effective 30 Jul 2026), 'Your content': Google won't claim ownership of original content you generate. Flow's help centre answers the commercial-use question with this clause. The ToS bars using generated content to build ML models; all outputs carry SynthID, and a visible watermark is forced for users in India, South Korea and Vietnam below the top Ultra plan. source
Restricted (see notes)
Billing docs list "commercial rights to generated worlds" on the Pro plan. Commercial terms for Free and Standard: unverified. source
Revenue share / caps
Not stated by vendor
Not stated by vendor
API
Available. Veo 3.1 GA on Google Cloud Agent Platform (us-central1); Gemini API now serves Gemini Omni Flash instead source
Available. World API (separate credits) source
MCP server●
Community server only. Google Cloud's GenMedia MCP servers (Veo, Lyria, TTS) on GitHub, labelled 'not an officially supported Google product' source
Not stated by vendor. Not checked
Last checked

Rows marked ● differ between the two tools. Licence badges: green = commercial use allowed (including any free plan or trial), amber = paid plans only, restricted, or allowed but with no free plan, red = not allowed, grey = not stated by vendor or not applicable. Read the vendor's current terms before you ship.