Google · model workflow guide

Veo 3.1 Reference Image Guide

A reference image should tell the model what already exists. Your text should then explain what changes over time instead of redundantly redescribing every visible detail.

How GenVideoKit structures Veo 3.1 prompts

Use coherent natural-language direction with explicit temporal flow from start state to end state. Describe subject action, camera behavior, lighting and environmental motion. When relevant, integrate dialogue, ambience and sound effects because this model family supports native audiovisual generation. Avoid conflicting camera moves and keep continuity physically plausible.

Text → videoImage → videoNative audioFirst / last frameExtension

Production shortcut

Let the image define the starting appearance. Use the text to define motion, camera behavior and the elements that must remain locked.

Reference pricing snapshot
$0.4 / second

Good reference frame

  • Subject is readable and not heavily occluded.
  • Pose leaves room for the intended motion.
  • Important product or identity details are visible.
  • Lighting direction and environment are coherent.
  • The frame already resembles the intended starting composition.

Prompt what changes

Do not spend the prompt redescribing everything already visible. State the motion, camera move, final state and the details that must not drift.

Preserve the reference subject, wardrobe and room. The subject slowly stands, turns toward the window and takes one step forward. Camera makes a gentle lateral track only. Keep furniture geometry and light direction unchanged.
Sources & verification

Data sources used on this page

Model capabilities, vendor metadata and pricing references are read from the same GenVideoKit catalog used by the calculators and comparison tools.

Catalog checked 2026-09-20
Veo 3.1
Google · Veo
Checked 2026-09-19
Tracked capabilities: Text → video, Image → video, Native audio, First / last frame, Extension
Reference source: Google Gemini API
Official paid API rate; successful generations are billed.

Reference API/provider rates only. Subscription credits, promotions, regional pricing and aggregator markups can differ.

Search intent

What this page is meant to answer

Use Veo 3.1 Reference Image Guide for explanation, setup choices and workflow checks rather than immediate prompt generation. It is the informational layer for this specific search intent.

How the workflow worksSettings or capability constraintsWhat to verify before generating

Scope boundary: Use the linked tool page when you are ready to build a prompt or calculate cost; keep this guide for the reasoning and setup.