veo-3.1-fast-generate-preview AI Video API
Google veo-3.1-fast-generate-preview for video generation; Flatkey routes this model through /v1/videos. $0.08 per second
Output
PreviewRequest summary
- Endpoint
- POST /v1/videos
- Model ID
- veo-3.1-fast-generate-preview
- Size
- 1280x720
- Duration
- 8s
- Reference media
- None
Preview only. Sign in to submit this request to Flatkey.
{
"model": "veo-3.1-fast-generate-preview",
"prompt": "Creative direction: At an illustrated lantern festival, audience silhouettes watch a woman puppeteer operate a small paper theater. Lanterns glow overhead while loose paper fragments sweep across the stage, and the camera holds the layered crowd and puppet show together.\n\nVisual treatment: Illustrated paper-theater animation with layered silhouettes and warm lantern glow. Keep this medium and palette consistent across all beats.\n\nShot plan: 6-second timing reference. Scale all beat boundaries proportionally to the selected output duration and compose for the selected aspect ratio.\n00:00–00:02: Establish the paper theater, puppeteer and layered audience.\n00:02–00:04: Show the puppet action as paper fragments drift across the small stage.\n00:04–00:06: Hold the crowd and theater under steady lantern light.\n\nContinuity and finish: Preserve the established rendering style, subject identity, costume or product geometry, palette and light direction throughout. Keep moving subjects in focus; ease camera starts and stops, and let the final composition settle. Retain readable silhouettes during effects and preserve contact points during interactions.\nAvoid: identity drift, extra limbs, duplicated props, intersecting geometry, texture flicker, exposure pumping, abrupt camera jumps, unrequested text, logos or watermarks.",
"duration": 8,
"size": "1280x720"
}veo-3.1-fast-generate-preview API performance
veo-3.1-fast-generate-preview API reliability and uptime
Live Flatkey request telemetry for veo-3.1-fast-generate-preview appears here when enough production traffic is available.
veo-3.1-fast-generate-preview API activity
veo-3.1-fast-generate-preview API usage and request activity
Track request volume and successful inference activity for veo-3.1-fast-generate-preview over the latest reporting window.
veo-3.1-fast-generate-preview pricing
veo-3.1-fast-generate-preview API pricing and billing
Prices below are calculated from Flatkey pricing data for this model and the visible groups currently returned by our pricing API.
Add credits
Use the same Flatkey balance and API key across image, video, audio, and text models.
- Model Type
- Text to Video
- API
- /v1/videos
- Billing basis
- second
- Duration
- –s
- Aspect ratio
- adaptive
veo-3.1-fast-generate-preview video generation: core capabilities
Google's veo-3.1-fast-generate-preview route supports Not listed in the catalog. The catalog does not list a category for this model.
veo-3.1-fast-generate-preview scene creation
Turn a written brief into short-form scenes through /v1/videos, ready for creative iteration.
veo-3.1-fast-generate-preview reference-led motion
Animate a designed frame, product, character, or storyboard when the route accepts reference media.
veo-3.1-fast-generate-preview camera and action direction
Shape how the camera, subject, pacing, and framing develop into a coherent clip.
veo-3.1-fast-generate-preview production handoff
Move a tested concept from prompt exploration into an authenticated Flatkey video workflow.
Compare
veo-3.1-fast-generate-preview API comparison: capabilities and access
Compare the catalog facts for veo-3.1-fast-generate-preview with the previous-generation baseline before changing your integration.
| Capability | Previous generation | veo-3.1-fast-generate-preview |
|---|---|---|
| Provider | Not verified in this catalog snapshot | |
| Modalities | Not verified in this catalog snapshot | Not listed in the catalog |
| Context | Not verified in this catalog snapshot | Context window not listed in the catalog |
| Endpoint | Not verified in this catalog snapshot | /v1/videos |
| Billing | Not verified in this catalog snapshot | $0.08 per second |
Prompt library
veo-3.1-fast-generate-preview video generation prompt examples
Start with a veo-3.1-fast-generate-preview prompt for short-form creator clips, then adjust the request fields shown in the playground.
At an illustrated lantern festival, audience silhouettes watch a woman puppeteer operate a small paper theater. Lanterns glow overhead while loose paper fragments sweep across the stage, and the camera holds the layered crowd and puppet show together.
Collapse prompt
Creative direction
At an illustrated lantern festival, audience silhouettes watch a woman puppeteer operate a small paper theater. Lanterns glow overhead while loose paper fragments sweep across the stage, and the camera holds the layered crowd and puppet show together.
Visual treatment
Illustrated paper-theater animation with layered silhouettes and warm lantern glow. Keep this medium and palette consistent across all beats.
Shot plan
6-second timing reference. Scale all beat boundaries proportionally to the selected output duration and compose for the selected aspect ratio.
- 00:00–00:02
Establish the paper theater, puppeteer and layered audience.
- 00:02–00:04
Show the puppet action as paper fragments drift across the small stage.
- 00:04–00:06
Hold the crowd and theater under steady lantern light.
Continuity and finish
Preserve the established rendering style, subject identity, costume or product geometry, palette and light direction throughout. Keep moving subjects in focus; ease camera starts and stops, and let the final composition settle. Retain readable silhouettes during effects and preserve contact points during interactions.
Avoid: identity drift, extra limbs, duplicated props, intersecting geometry, texture flicker, exposure pumping, abrupt camera jumps, unrequested text, logos or watermarks.
A pop-art running shoe assembles from bold colored panels against a graphic background. The completed shoe strikes the ground, throws a bright splash, and shoots forward with a white motion trail into the final side profile.
Collapse prompt
Creative direction
A pop-art running shoe assembles from bold colored panels against a graphic background. The completed shoe strikes the ground, throws a bright splash, and shoots forward with a white motion trail into the final side profile.
Visual treatment
Pop-art product animation with bold color panels, graphic splashes and white speed trails. Keep this medium and palette consistent across all beats.
Shot plan
6-second timing reference. Scale all beat boundaries proportionally to the selected output duration and compose for the selected aspect ratio.
- 00:00–00:02
Show the colored shoe panels separated against the graphic background.
- 00:02–00:04
Join the panels, then show the shoe contacting the ground in a bright splash.
- 00:04–00:06
Track its short forward burst and hold the finished side profile.
Continuity and finish
Preserve the established rendering style, subject identity, costume or product geometry, palette and light direction throughout. Keep moving subjects in focus; ease camera starts and stops, and let the final composition settle. Retain readable silhouettes during effects and preserve contact points during interactions.
Avoid: identity drift, extra limbs, duplicated props, intersecting geometry, texture flicker, exposure pumping, abrupt camera jumps, unrequested text, logos or watermarks.
An anime woman in an orange suit runs along a wet deserted train platform, then stops beneath a signal lamp and looks down the tracks. Follow the run laterally and settle behind her on the empty rail corridor.
Collapse prompt
Creative direction
An anime woman in an orange suit runs along a wet deserted train platform, then stops beneath a signal lamp and looks down the tracks. Follow the run laterally and settle behind her on the empty rail corridor.
Visual treatment
Anime platform scene with orange costume, cool wet surfaces and a signal-light accent. Keep this medium and palette consistent across all beats.
Shot plan
10-second timing reference. Scale all beat boundaries proportionally to the selected output duration and compose for the selected aspect ratio.
- 00:00–00:03
Track the orange-suited woman running along the wet platform.
- 00:03–00:06
Slow with her as she stops beneath the signal lamp.
- 00:06–00:10
Settle behind her looking down the empty tracks.
Continuity and finish
Preserve the established rendering style, subject identity, costume or product geometry, palette and light direction throughout. Keep moving subjects in focus; ease camera starts and stops, and let the final composition settle. Retain readable silhouettes during effects and preserve contact points during interactions.
Avoid: identity drift, extra limbs, duplicated props, intersecting geometry, texture flicker, exposure pumping, abrupt camera jumps, unrequested text, logos or watermarks.
A small 2D hero faces a giant stone golem whose chest holds a glowing cyan core. Turquoise energy spreads around the golem as the hero braces in the foreground and the wide camera holds their scale difference.
Collapse prompt
Creative direction
A small 2D hero faces a giant stone golem whose chest holds a glowing cyan core. Turquoise energy spreads around the golem as the hero braces in the foreground and the wide camera holds their scale difference.
Visual treatment
2D fantasy game animation with textured stone, a small hero silhouette and turquoise energy. Keep this medium and palette consistent across all beats.
Shot plan
6-second timing reference. Scale all beat boundaries proportionally to the selected output duration and compose for the selected aspect ratio.
- 00:00–00:02
Hold the small hero and giant golem together in a wide frame.
- 00:02–00:04
Brighten the cyan core as turquoise energy spreads around the stone body.
- 00:04–00:06
Hold the braced hero in the foreground with the scale difference clear.
Continuity and finish
Preserve the established rendering style, subject identity, costume or product geometry, palette and light direction throughout. Keep moving subjects in focus; ease camera starts and stops, and let the final composition settle. Retain readable silhouettes during effects and preserve contact points during interactions.
Avoid: identity drift, extra limbs, duplicated props, intersecting geometry, texture flicker, exposure pumping, abrupt camera jumps, unrequested text, logos or watermarks.
In an illustrated science demonstration, a boy pushes a blue ball down a wooden ramp. Direction arrows appear beside the moving ball while the fixed side view keeps the ramp, hands, and final stopping point visible.
Collapse prompt
Creative direction
In an illustrated science demonstration, a boy pushes a blue ball down a wooden ramp. Direction arrows appear beside the moving ball while the fixed side view keeps the ramp, hands, and final stopping point visible.
Visual treatment
Illustrated science demonstration with clean outlines and clear blue-ball contrast. Keep this medium and palette consistent across all beats.
Shot plan
10-second timing reference. Scale all beat boundaries proportionally to the selected output duration and compose for the selected aspect ratio.
- 00:00–00:03
Show the boy placing a hand behind the blue ball at the top of the ramp.
- 00:03–00:06
Release the ball and follow its downhill path within the fixed side view.
- 00:06–00:10
Show direction arrows beside the ball and retain the visible stopping point.
Continuity and finish
Preserve the established rendering style, subject identity, costume or product geometry, palette and light direction throughout. Keep moving subjects in focus; ease camera starts and stops, and let the final composition settle. Retain readable silhouettes during effects and preserve contact points during interactions.
Avoid: identity drift, extra limbs, duplicated props, intersecting geometry, texture flicker, exposure pumping, abrupt camera jumps, unrequested text, logos or watermarks.
A retro digital performer in a white jacket raises one hand on a cyan grid stage. An orange waveform grows behind the figure from left to right while the locked frontal camera holds the performer against the expanding graphic.
Collapse prompt
Creative direction
A retro digital performer in a white jacket raises one hand on a cyan grid stage. An orange waveform grows behind the figure from left to right while the locked frontal camera holds the performer against the expanding graphic.
Visual treatment
Retro graphic music visual with a cyan grid, white costume and orange waveform. Keep this medium and palette consistent across all beats.
Shot plan
10-second timing reference. Scale all beat boundaries proportionally to the selected output duration and compose for the selected aspect ratio.
- 00:00–00:03
Hold the white-jacketed performer against the cyan grid.
- 00:03–00:06
Raise one hand as the orange waveform grows from left to right.
- 00:06–00:10
Settle the hand and hold the completed graphic behind the figure.
Continuity and finish
Preserve the established rendering style, subject identity, costume or product geometry, palette and light direction throughout. Keep moving subjects in focus; ease camera starts and stops, and let the final composition settle. Retain readable silhouettes during effects and preserve contact points during interactions.
Avoid: identity drift, extra limbs, duplicated props, intersecting geometry, texture flicker, exposure pumping, abrupt camera jumps, unrequested text, logos or watermarks.
Why veo-3.1-fast-generate-preview API
Why use veo-3.1-fast-generate-preview through Flatkey?
Use one gateway for veo-3.1-fast-generate-preview, account controls and the rest of your model catalog.
veo-3.1-fast-generate-preview in one API
Keep the veo-3.1-fast-generate-preview model id and endpoint explicit while using the same Flatkey key as other workloads.
Live catalog pricing
See the current veo-3.1-fast-generate-preview billing dimensions before a request is sent, then confirm the final estimate in your account.
A practical model handoff
Test a veo-3.1-fast-generate-preview prompt in the public playground and carry the same settings into an authenticated integration.
Usage and routing controls
Centralize keys, quotas and routing for veo-3.1-fast-generate-preview without changing your application’s provider-facing workflow.
veo-3.1-fast-generate-preview API
veo-3.1-fast-generate-preview API integration guide
Use the model id above with /v1/videos; keep the request fields and billing unit documented for your route.
curl https://router.flatkey.ai/v1/videos \ -H "Content-Type: application/json" \ -H "Authorization: Bearer sk-..." \ -d '{ "model": "veo-3.1-fast-generate-preview", "prompt": "Create a short product video with veo-3.1-fast-generate-preview: clear subject motion, realistic lighting, stable camera, and production-ready framing.", "duration": 8, "size": "1280x720" }'
FAQ
veo-3.1-fast-generate-preview API
pricing, features, and usage FAQs
Answers about veo-3.1-fast-generate-preview pricing, capabilities, endpoint access and catalog limits.