High-volume video applications
The per-second API price suits products that generate many short clips and can tolerate a cost-optimized model.
Independent tool overview
Veo 3.1 Lite at a glance
Veo 3.1 Lite is Google's lowest-cost Veo video model for high-volume text-to-video and image-to-video generation with native audio. It runs in Google Flow and the paid Gemini API, but its capabilities differ by surface and it does not support 4K output.
Visit the official Veo 3.1 Lite site ↗
- Product type
- Cost-optimized AI video generation model
- Access
- Google Flow, Google AI Studio, and Gemini API
- API model ID
- veo-3.1-lite-generate-preview
- Durations
- 4, 6, or 8 seconds
- Resolution
- 720p or 1080p; no 4K
- Native audio
- Always on in the Gemini API
- API price
- $0.05-$0.08 per generated second
- Last reviewed
- August 29, 2026
Overview
What Veo 3.1 Lite is
Veo 3.1 Lite is the cost-optimized member of Google's Veo 3.1 video family. It is designed for developers and creators who need many short clips more than the highest available fidelity. The model generates four-, six-, or eight-second landscape or portrait videos with native audio at 24 frames per second.
In the Gemini API, Lite accepts text or an initial image and supports first-and-last-frame interpolation. It outputs 720p at $0.05 per second or 1080p at $0.08 per second; 1080p requires an eight-second generation. The API model is still labeled Preview, has no free API tier, and does not support 4K, video input, extension, or the separate reference-images parameter.
Google Flow exposes a different feature set. Its current help page lists text-to-video, first-frame and first-plus-last-frame generation, eight-second Ingredients or References, and extension of eligible eight-second Veo 3.1 clips. Flow also says Veo 3.1 Lite does not support video-to-video editing. Teams should therefore document the exact surface they use instead of assuming a feature shown in Flow exists in the Gemini API.
Lite is attractive for ad variants, social concepts, storyboards, game assets, and video-enabled applications where cost controls matter. It still has the normal failure modes of generative video: inconsistent identity and objects, broken physics, weak text, incoherent speech, missed prompt details, safety blocks, and expensive iteration at scale. Every clip needs visual, audio, rights, and disclosure review.
Use cases
Who Veo 3.1 Lite is best for
The strongest fit depends on the job you need the product to complete, not the size of its feature list.
Ad and creative iteration
Teams can test multiple hooks, scenes, product contexts, orientations, and audio treatments before producing a final asset.
Social video prototypes
Native 9:16 output and four-, six-, or eight-second durations fit short vertical concepts and motion tests.
Storyboard and previsualization
Text, a starting frame, or first-and-last frames can establish a shot's composition, motion, and transition before filming.
Flow creators extending Veo scenes
Google Flow currently uses Lite for extending eligible eight-second Veo 3.1 generations, even though API extension is not supported.
Capabilities
Core Veo 3.1 Lite features
Text-to-video
A written prompt can define subject, action, setting, camera, lighting, visual style, dialogue, effects, and ambient sound.
Image-to-video
An initial image anchors the first frame and visual identity while the prompt describes the movement and audio.
First-and-last-frame interpolation
Two supplied images can constrain the opening and closing composition of a generated transition.
Native audio
The Gemini API version generates video and audio together, including prompted dialogue, sound effects, and ambience.
Flexible duration
Developers can choose four, six, or eight seconds and pay according to the generated duration.
Landscape and portrait
Both 16:9 and 9:16 aspect ratios are supported for horizontal and vertical delivery.
720p output
The default resolution is available across the supported four-, six-, and eight-second lengths.
1080p output
Full-HD generation is available for eight-second clips at a higher per-second API price.
Ingredients in Flow
Google Flow supports image ingredients or references with Lite for eight-second video generations.
Scene extension in Flow
Flow can use Lite to extend eligible eight-second Veo 3.1 Lite, Fast, or Quality clips.
Programmable API
The Gemini API provides an asynchronous generation workflow for building video into products, pipelines, and batch jobs.
SynthID watermarking
Google embeds SynthID in Veo-generated video so supported verification tools can identify Google AI-generated content.
Process
How the Veo 3.1 Lite workflow works
Step 1
Choose Flow or the Gemini API
Use Flow for a visual filmmaking workspace and its current ingredients or extension features; use the API for programmatic 720p and 1080p generation.
Step 2
Set a cost ceiling
Estimate the number of variants, duration, resolution, retries, and successful outputs before launching a batch.
Step 3
Define one short shot
Describe one subject, one primary action, one setting, and one camera idea that can plausibly fit within four to eight seconds.
Step 4
Write visual and audio direction
Separate the shot, camera, light, style, dialogue, effects, and ambience so each requirement is explicit.
Step 5
Use a reference frame when needed
Anchor product appearance, composition, color, or character design with an owned or licensed image instead of relying entirely on text.
Step 6
Prototype at 720p
Test motion, prompt adherence, and audio at the lower API rate before paying for an eight-second 1080p result.
Step 7
Change one variable per retry
Adjust only the subject, action, camera, reference, or audio instruction so the effect of each change is understandable.
Step 8
Review every frame and sound
Check identity, anatomy, objects, physics, logos, text, continuity, lip sync, pronunciation, background audio, and unexpected content.
Step 9
Label and retain provenance
Keep the prompt, model ID, settings, source rights, review record, and AI disclosure with the exported asset.
Cost
Veo 3.1 Lite pricing and free plan
The paid Gemini API charges $0.05 per generated second for 720p Veo 3.1 Lite and $0.08 per second for 1080p; 4K is unsupported. In Google Flow, a Lite generation costs 10 credits for non-Ultra users and 5 for Ultra users. Non-subscribers currently receive 50 free Flow credits per day, while paid Google AI plans include monthly credit pools that do not roll over.
Gemini API 720p
$0.05 per second
The lowest-cost programmatic Veo 3.1 option with native audio.
- Four seconds costs $0.20
- Six seconds costs $0.30
- Eight seconds costs $0.40
- No free Gemini API tier
- Charged only when a video is successfully generated under the current pricing note
Gemini API 1080p
$0.08 per second
Full-HD output for finalized Lite generations.
- Eight-second duration only
- An eight-second video costs $0.64
- 4K output is not supported
- The model remains in Preview
Free Google Flow credits
50 credits per day
A no-subscription allowance for trying Veo models in Flow.
- Lite costs 10 credits per generation
- Unused daily credits do not roll over
- The refresh begins from the first generation
- A request may create more than one generation and charge each result
Google AI plan credits
200-25,000 credits per month
Monthly Flow allowances vary by Google AI Plus, Pro, and Ultra level.
- Plus: 200 Flow credits per month
- Pro: 1,000 Flow credits per month
- Ultra levels: 10,000 or 25,000 Flow credits per month
- Lite costs 10 credits for Plus and Pro users and 5 for Ultra users
- Monthly Flow credits do not roll over
Higher Veo API tiers
$0.10-$0.60 per second
Veo 3.1 Fast and Standard trade higher cost for additional resolution or model capability.
- Fast costs $0.10 per second at 720p and $0.12 at 1080p
- Standard costs $0.40 per second at 720p or 1080p
- Fast and Standard support 4K at higher rates
- Compare real acceptance rate and retry cost, not only the listed per-second price
Pricing checked . Check current pricing at the source ↗
Assessment
Veo 3.1 Lite strengths and limitations
Where it stands out
- Google's lowest published Veo 3.1 API price
- Native video and audio generation in one request
- Supports both landscape and portrait without a separate model
- Four-, six-, and eight-second durations make cost and shot length adjustable
- First-frame and first-plus-last-frame workflows provide useful composition control
- Flow adds practical ingredient and scene-extension workflows
- Available through both a creator interface and a programmable API
- SynthID, safety filters, and memorization checks add provenance and risk controls
What to consider
- Veo 3.1 Lite is a Preview API model and may change before stable release
- There is no free Gemini API tier for Lite video generation
- 4K output is not supported
- 1080p requires an eight-second output
- The Gemini API does not support video input or video-to-video editing for Lite
- The Gemini API does not support Lite extension or the separate referenceImages parameter
- Flow and Gemini API feature support differ, which can complicate prototypes intended for production APIs
- Clips are limited to four, six, or eight seconds before any Flow extension workflow
- Generated speech can be incoherent, mispronounced, poorly synchronized, or blocked by audio processing
- Identity, hands, objects, logos, text, physics, continuity, and camera behavior can drift
- Low per-second cost can still become expensive when batches have a high rejection or retry rate
- Safety filters can reject prompts or outputs and create unpredictable completion rates
- Generated API videos are retained by Google for a limited period and must be downloaded promptly
- Users remain responsible for consent, privacy, copyright, trademark, likeness, disclosure, and appropriate use
Compare
Veo 3.1 Lite alternatives
The right alternative depends on the specific output, workflow, controls and budget your project requires.
Content Creator
Veo 3.1
Google's higher-capability sibling for teams that need the broader Veo 3.1 feature set or 4K output and can accept higher cost.
Explore Veo 3.1 →Content Creator
Sora 2
OpenAI's video model is an alternative for creators comparing prompt-driven audiovisual generation outside Google's ecosystem.
Explore Sora 2 →Content Creator
Runway Gen-4.5
Runway's cinematic video model is an alternative for teams that value a dedicated creative-production platform and its surrounding controls.
Explore Runway Gen-4.5 →Questions
Veo 3.1 Lite FAQs
What is Veo 3.1 Lite?
Veo 3.1 Lite is Google's cost-optimized Veo video model for high-volume short video generation with native audio in Flow and the paid Gemini API.
How much does Veo 3.1 Lite cost?
The Gemini API costs $0.05 per generated second at 720p and $0.08 at 1080p. Flow charges 10 credits per Lite generation for non-Ultra users and 5 for Ultra users.
Is Veo 3.1 Lite free?
The Gemini API has no free tier for Lite. Google Flow currently gives eligible non-subscribers 50 free credits per day, and a Lite generation costs 10 credits.
How long are Veo 3.1 Lite videos?
Lite generates four-, six-, or eight-second clips. In Flow, eligible eight-second Veo 3.1 clips can currently be extended using Lite.
Does Veo 3.1 Lite generate audio?
Yes. Native audio is always on in the Gemini API and can include prompted dialogue, sound effects, and ambience.
Does Veo 3.1 Lite support 1080p?
Yes, but the Gemini API documentation limits 1080p Lite output to an eight-second duration. It costs $0.08 per generated second.
Does Veo 3.1 Lite support 4K?
No. Use a higher Veo tier or a supported Flow upscaling workflow when 4K is required.
Can Veo 3.1 Lite animate an image?
Yes. The Gemini API supports an initial image and first-plus-last-frame generation. Flow also supports frame-based and eight-second ingredient workflows.
Can Veo 3.1 Lite edit an existing video?
No general video-to-video editing is supported. Flow can extend eligible eight-second Veo 3.1 clips with Lite, but the Gemini API does not expose Lite video extension.
Why do Flow and Gemini API features differ?
They are separate product surfaces with different integrations and release paths. Always check the current Flow help or Gemini API table for the exact workflow being built.
Are Veo 3.1 Lite videos watermarked?
Google says videos generated by Veo include the imperceptible SynthID watermark and can be checked with supported SynthID verification tools.
Is Veo 3.1 Lite good for production?
It can be cost-effective for high-volume workflows, but the API is still Preview. Production teams need retry budgets, output review, rights controls, monitoring, and a fallback for safety or audio failures.
Bottom line
Our Veo 3.1 Lite verdict
Veo 3.1 Lite is compelling when video volume and unit economics matter: a 720p eight-second API clip costs $0.40 with native audio, and Flow makes experimentation cheaper still. It is not simply Veo 3.1 at a lower price. The missing 4K, Preview status, surface-specific capabilities, and likely retry burden mean teams should benchmark accepted-output cost on their own prompts before choosing it over Fast or Standard.
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