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How to Use the Gemini Omni Flash Reference to Video API API: reference to video integration guide (2026)

2 min · Updated 2026-07-11 · By the NamiFusion team

Learn how to call the Gemini Omni Flash Reference to Video API API on NamiFusion: parameters, pricing (from ≈$1.28) and runnable copy-paste code — try it in the playground first.

Gemini Omni Flash Reference to Video API is a reference to video model by Google: Gemini Omni Flash Reference to Video creates short AI videos with synchronized audio from one or more reference images and a text prompt, preserving visual identity and following the provided references for guided multimodal video generation. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing. On NamiFusion you can try it in the playground (exact quote shown before you submit), then call it through one unified REST API — a typical run costs about $1.28.

TL;DR

· Task type: reference to video, provided by Google

· Pricing: about $1.28 per typical run ($1 = 100 credits), pay-as-you-go

· Getting started: playground (exact quote before submit) → create an API key → one POST request

· Tunable parameters: 4 (see the table below)

· No platform watermark; commercial use allowed (per the Terms of Service)

What can you build with Gemini Omni Flash Reference to Video API?

Short-form video and ad clips: go from a prompt or a single image to publishable motion content.

Product demos and concept previews: validate storyboards and visual direction cheaply before any shoot.

A social content factory: batch vertical clips and ride trending topics fast.

Remixing existing assets: image-to-video brings static work to life and extends its lifespan.

How do you call this API?

1. Sign up on NamiFusion and create a key on the API Keys page (free credits on signup).

2. Submit a task with the cURL example below, passing your key as a Bearer token.

3. Poll the task status with the returned task_uuid and read the output URLs when completed.

Submit a task
# 1) Submit — returns { "task_uuid": "..." }
curl -X POST "https://www.namifusion.com/api/v1/marketplace/run/google/gemini-omni-flash/reference-to-video" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "input": {
    "images": [
      "https://example.com/input.jpg"
    ],
    "prompt": "A cinematic portrait, dramatic rim light, shallow depth of field",
    "aspect_ratio": "16:9",
    "duration": 8
  }
}'

# 2) Poll until status is "completed", then read the output URLs
curl "https://www.namifusion.com/api/v1/marketplace/run/tasks/TASK_UUID" \
  -H "Authorization: Bearer YOUR_API_KEY"

What parameters does it take?

images (Images): required

prompt (Prompt): required

aspect_ratio (Aspect Ratio): optional, default "16:9"

duration (Duration): optional, default 8

How do you write prompts for Gemini Omni Flash Reference to Video API?

1. Subject first: lead with the actor and action, then add environment, lighting and style ("an astronaut sprinting through a neon street in the rain, cinematic, shallow depth of field").

2. Concrete nouns beat stacked adjectives: "85mm portrait lens, golden-hour backlight" works far better than "very beautiful, ultra high quality".

3. Change one variable per iteration: pin the seed to reproduce a result, tweak a single phrase at a time so you know what actually moved the output.

4. State negatives positively: instead of "no blur", ask for "sharp focus, crisp details".

How much does it cost?

Pay-per-use in credits. A typical run costs about $1.28 ($1 = 100 credits); the exact price varies with parameters like resolution or duration, and the playground shows the exact quote before you submit.

Gemini Omni Flash Reference to Video API

Create short, reference-guided videos with synchronized audio—fast, consistent, and cost-efficient.

Gemini Omni Flash Reference to Video is an image-to-video model that generates short videos with synchronized audio from one or more reference images plus a text prompt. It is designed for workflows that require stronger subject, style, or layout consistency, while also offering no cold starts, reliable performance, and affordable pricing.

🚀 Key Features

  • Reference-guided video generation: Use one or more reference images to steer subject appearance, style, composition, and overall visual direction.
  • Stronger visual consistency: Well suited for preserving character identity, product appearance, object details, or brand-aligned visuals across generated clips.
  • Synchronized audio output: Generates audio together with the video, enabling more complete short-form content creation.
  • Prompt-driven motion and pacing: Control scene development, subject behavior, camera movement, pacing, and audio direction through natural language.
  • Simple aspect ratio control: Supports 16:9 for landscape output and 9:16 for portrait-first content.
  • No cold starts, production-friendly: Optimized for responsive generation and predictable cost in testing and scaled usage.

🛠️ Technical Specifications

ItemDetails
Model NameGemini Omni Flash Reference to Video API
Model IDgoogle/gemini-omni-flash/reference-to-video
Task TypeImage-to-video
Model ArchitectureReference-guided multimodal video generation model
InputOne or more reference image URLs + Prompt
OutputVideo with synchronized audio
Supported Aspect Ratio16:9, 9:16
Default Aspect Ratio16:9
Duration Range3–10 seconds
Default Duration8 seconds
Audio CapabilityYes, synchronized audio generation
Prompt ControlScene, motion, camera behavior, pacing, and audio direction
Reference TaggingSupports tags such as <IMAGE_REF_0> inside the Prompt
Latency ProfileNo cold starts; suitable for responsive online generation
Output FormatShort-form video clip

Sample Prompts

  1. The character in <IMAGE_REF_0> walks through a neon-lit street at night, slow forward camera push, subtle fabric movement in the wind, cinematic pacing, with ambient city audio.
  2. Using <IMAGE_REF_0> and <IMAGE_REF_1> as references, create a product showcase video in a clean studio setting, slow rotation of the subject, gentle orbit camera movement, with minimal futuristic sound design.
  3. Follow the visual style of <IMAGE_REF_0> and generate a vertical video where the subject turns, smiles, and waves to the camera, with soft background blur, upbeat pacing, and natural environmental audio.

💰 Pricing

ItemPrice
Base Price$0.16 / second
3s video$0.48
5s video$0.80
8s video$1.28
10s video$1.60

FAQ

Can I try it for free first?+

Signup gives you free credits, but they currently apply only to selected in-app face-swap features — this model is pay-as-you-go. The playground still lets you try it without code, with the exact quote shown before you submit.

Can I use the output commercially? Is there a watermark?+

Yes, outputs are yours to use commercially, and NamiFusion adds no platform watermark — subject to the Terms of Service and applicable law.

What is the content policy?+

NamiFusion is an unfiltered engine: no arbitrary restrictions and NSFW-friendly, but illegal content and non-consensual use of real people are prohibited — see the Terms of Service.

How long does a Gemini Omni Flash Reference to Video API task take?+

It depends on parameters — images usually take seconds, videos tens of seconds to minutes. The API returns a task_uuid for polling.

What are the resolution and duration limits?+

See the parameter table above — each model lists its available resolution and duration options there and in the playground.