Story321.com
🤖Browse Models (32)
S

Sana video : Efficient Text-to-Video and Image-to-Video by NVIDIA NVLabs

Sana video brings efficient, high-quality text-to-video and image-to-video generation to your browser. Create coherent 720p, 16 fps clips up to one minute with research-backed performance. Try Sana video on Story321 and ship polished motion content fast.

GitHub

Prompting Sana video like a pro

Clear intent and temporal cues help Sana video deliver consistent motion and style.

Key elements of a strong prompt

Subject + art direction

Define who/what, plus aesthetics. Name character traits, materials, and style anchors.

Example: A ceramic robot barista, mid-century cafe, pastel palette, soft rim lighting, bokeh highlights

Action + camera

Describe verbs and camera language to lock motion and framing.

Example: Robot pours latte art; handheld medium shot, gentle dolly-in, slight parallax, shallow depth of field

Environment + mood

Specify space, light, and atmosphere to stabilize look across frames.

Example: Golden hour, warm key light, volumetric dust motes, reflective tiles, neon sign flicker

Temporal beats

Add start/middle/end pacing to guide progression in short clips.

Example: Start steady; mid pour; end reveal swirl, hold 1s

Reference-first I2V

For image-to-video, say what to preserve vs. what to animate.

Example: Keep face and outfit; add wind in hair; slow push-in; subtle smile by end

Pro tips

✓

Be explicit, not verbose

Short, concrete phrasing outperforms long, poetic text for motion control.

✓

Tie motion to time

Use seconds (“hold 1s”, “ramp over 2s”) so timing maps to clip length.

✓

Iterate in short clips

Refine in 3–5s; upscale or extend after Sana video matches your intention.

Prompt refinement examples

✗
Basic

"A fox running in a forest"

✓
Enhanced

"A red fox dashes along a mossy path; steady cam at fox height; morning mist; sunbeams through pines; start wide, mid chase, end close-up — Sana video holds framing and motion cues"

✗
Basic

"A sports car on a coastal road"

✓
Enhanced

"Vintage red sports car, low tracking shot, lens flare, ocean cliffs; smooth roll; pass two bends; end on cliff vista — Sana video maintains speed and composition"

How to use on Story321

Follow these steps to produce consistent results with Sana video.

1

Pick the model

Choose Sana video from the model list.

2

Select mode

Use Text-to-Video for prompts, or Image-to-Video to animate a reference.

3

Write the prompt / set reference

Describe subject, motion, camera, time; upload an image for I2V.

4

Set duration, resolution, fps

Choose up to 60s, 720p, and 16 fps for balanced quality.

5

Tune controls

Adjust motion strength, camera jitter, aspect ratio, and seed for reproducibility.

6

Generate and refine

Preview, trim, and iterate in short clips; extend once locked.

Tips

  • •Iterate at 3–5s lengths before extending to 30–60s.
  • •Keep subject names, styles, and lens terms consistent across runs.
  • •Use time cues like “hold 1s” to stabilize beats.
  • •For I2V identity, upload crisp, evenly lit references.
  • •Organize winning prompts as templates for Sana video.

Specs such as 720p, 16 fps, and up to 1 minute reflect current public research notes; see the project pages for updates ([nvlabs.github.io](https://nvlabs.github.io/Sana/Video/) • [github.com](https://github.com/NVlabs/Sana)).

FAQ

Frequently asked questions

Answers to common Sana video setup and workflow questions.

Start creating with Sana video

Prototype, iterate, and publish compelling motion content—Sana video on Story321 gives you speed, coherence, and research-grade quality.

Try Sana video now

Performance and specs are based on public materials and may evolve with new releases ([nvlabs.github.io](https://nvlabs.github.io/Sana/Video/)).