Build Consistent Visual Worlds with Runway Gen-4 Image
Runway Gen-4 Image refers to Runway’s official Gen-4 Image model—an image-generation model developed by Runway AI, Inc., positioned by Runway as its most advanced base model for image generation with strong stylistic control and visual fidelity. Runway announced Gen-4 Image availability via its API on May 16, 2025 , and documents Gen-4 Image usage through its Help Center and developer documentation.
Gen-4 Image is designed for creators who need repeatable, art-directable results—not just “one-off” beautiful renders. In Runway’s dashboard, Gen-4 Image supports multiple aspect ratios and output resolutions (including HD options) , while the Runway API exposes structured controls like a required prompt text limit and a required set of reference images for more consistent outputs across variations .
On Vidofy.ai, you can run Runway Gen-4 Image with a streamlined workflow: fast iteration, clean prompt organization, and an interface built for production use (concepting, product scenes, brand visuals, and story frames) without needing to wire up an API or manage complex tooling.
Worldbuilding Showdown: Runway Gen-4 Image vs Midjourney V6
Runway Gen-4 Image and Midjourney V6 both target high-quality image generation—but they differ in how they structure control. Below is a spec-focused comparison using only officially documented capabilities (and clearly marking anything not verified).
| Feature/Spec | Runway Gen-4 Image | Midjourney V6 |
|---|---|---|
| Model type | Image generator | Image generator |
| Maximum prompt size | 1000 characters | Not verified in official sources (latest check) |
| Output resolution options | 720p and 1080p in Runway UI | Not verified in official sources (latest check) |
| API output image resolutions (ratio presets) | Accepted `ratio` values include 1920:1080, 1080:1920, 1280:720, 720:1280, 1024:1024 (and others) | Not verified in official sources (latest check) |
| Supported aspect ratios (documented) | 16:9, 9:16, 1:1, 4:3, 3:4, 21:9 | Default 1:1; set with `--ar` / `--aspect` |
| Reference images (documented limit) | API `referenceImages`: 1–3 images per request | Not verified in official sources (latest check) |
| Seed range (repeatability control) | 0–4294967295 | 0–4294967295 |
| Accessibility | Instant on Vidofy | Midjourney V6 also available on Vidofy |
Detailed Analysis
Analysis: References as a First-Class Workflow
Runway Gen-4 Image is explicitly documented to accept reference images at the API level, including a defined required range for how many reference images you can send. That matters if you’re building repeatable product scenes, consistent characters, or a stable “world” you can iterate on—because the workflow is structured around references rather than being an optional add-on.
In Vidofy, this becomes a practical advantage: you can organize a small reference pack per concept (subject, style, environment) and iterate prompts without constantly rebuilding your workflow from scratch.
Analysis: Control Surfaces (UI Presets vs Parameter Culture)
Midjourney V6 is well-known for parameter-driven control (for example, aspect ratios via `--ar`, seeds via `--seed`, and other tuning features), while Runway Gen-4 Image emphasizes a creator-friendly dashboard flow plus a structured API for teams building pipelines.
If you want an interface that feels “production tool” first (sessions, iteration actions, and handoff to downstream tools), Runway Gen-4 Image on Vidofy is a strong fit. If you prefer a parameter-centric prompting culture, Midjourney V6 remains compelling—especially for rapid stylistic exploration.
Verdict: Choose Runway Gen-4 Image When Consistency Is the Deliverable
How It Works
Follow these 3 simple steps to get started with our platform.
Step 1: Choose Runway Gen-4 Image
Select Runway Gen-4 Image inside Vidofy to start an image generation session optimized for art-directed iteration.
Step 2: Add your concept (and references when needed)
Write a clear prompt describing subject, environment, lighting, and composition. When consistency matters, use reference images to anchor identity or style.
Step 3: Generate, compare, and iterate
Create multiple variations, keep the best direction, and refine with targeted edits to converge on a final, production-ready image.
Frequently Asked Questions
Is “Runway Gen-4 Image” an image model or a video model?
It’s an image-generation model. Runway’s documentation refers to it as “Gen-4 Image” and describes it as a base model for image generation.
What is the maximum prompt length for Runway Gen-4 Image?
Runway documents a maximum prompt size of 1000 characters.
What output resolutions are available in the Runway dashboard for Gen-4 Image?
Runway lists 1080p and 720p output options in the Gen-4 Image Help Center guide.
How many reference images can I use with Runway Gen-4 Image?
In the Runway API reference for text/image-to-image, `referenceImages` is required and supports 1 to 3 images per request.
Do I own what I generate (and can I use it commercially)?
Runway states that, as between you and Runway, you retain ownership and rights to content you upload and generate, and that your creations are yours to use without non-commercial restrictions. For Midjourney, its Terms say you own assets to the fullest extent possible under applicable law, with exceptions including a revenue threshold for companies: more than $1,000,000 USD/year requires a Pro or Mega plan to own assets.
Does Runway Gen-4 Image support seeds for repeatability?
Runway’s API reference for text/image-to-image documents a `seed` field with a range of 0–4294967295.