Veo 3.1
Generates 4, 6 or 8 second clips with natively generated audio from a text prompt, an image, or up to three reference images.
- Up to
- 8 seconds
- Resolution
- 4K
- Aspect ratios
- 16:9, 9:16
- Weights
- Not released
- API
- Yes
- Commercial use
- Not established
Supports first-and-last-frame interpolation and extension of an existing generated video. Available via the Gemini API, Google AI Studio, Vertex AI, the Gemini app, Google Vids and Flow.
The research notes for this model record other terms but do not state a commercial-use position, and no licence page was retrieved, so it is not established here. Check the vendor's own terms.
- Output is watermarked. All Veo output carries a SynthID watermark
Specification
- What it takes in
- text, image, video
- What it makes
- video, audio
- Maximum duration
- 8 seconds
- Maximum resolution
- 4K
- Aspect ratios
- 16:9, 9:16
- Controls
- image-to-video, keyframes, reference-character-consistency, extend
- Weights
- Not released
- API
- Yes
- Pricing
- Gemini API priced per second of output: $0.40/sec at 720p and 1080p, $0.60/sec at 4K; audio included
- Released or updated
- 2025-10
Strengths
- Native synchronised audio including dialogue, ambience and music
- 4K output tier
- Up to three reference images for subject/style consistency
- First and last frame specification
- Video extension supported
- Available across consumer, developer and enterprise surfaces
Weaknesses
- Maximum 8 seconds per generation; 1080p and 4K require the full 8s duration
- Only 16:9 and 9:16 aspect ratios
- Video extension is limited to 720p
- Prompt limited to 1,024 tokens; one output video per request
- Still labelled Preview
Best for
- dialogue-driven shots
- ads and social video
- 4K hero clips
- storyboard-to-shot workflows
Where the sources disagree
Recorded rather than resolved. Picking the tidier number would hide the fact that the vendor's own pages do not agree.
- deepmind.google states "Videos generate at 8 seconds standard length" while the Gemini API docs list selectable durations of 4, 6 or 8 seconds - https://deepmind.google/models/veo/ vs https://ai.google.dev/gemini-api/docs/veo
- Third-party pricing pages list a Veo 3.1 Fast rate of $0.15/sec at 720p; Google's own pricing page lists $0.10/sec at 720p - https://ai.google.dev/gemini-api/docs/pricing vs https://www.aifreeapi.com/en/posts/veo-3-1-pricing
What to understand before using it
Explainers naming the mechanisms this model's own documentation mentions.
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See it from the vendor
Shotcraft hosts no sample output. Judging a model means watching its own showreel with your own eyes, and a clip re-hosted here would be a clip we chose.
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