How to Use Runway — Turn a Still Image Into Video
A practical guide to the method that actually works in Runway — animating an image instead of generating from text alone — plus a realistic read on the credits system before it drains you.
Beginner7 min read
What you'll be able to do by the end
- Understand that animating a still image is Runway's most practical and powerful use — not pure text-to-video
- Know the credits system and predict what each generation costs by quality and duration before you start
- Build longer videos by generating several short clips and editing them together, instead of expecting one long clip from a single click
- Avoid wasting credits by testing prompts at low quality first, then rendering the final version at high quality once you've settled on it
- Know the tool's limits (hands and faces, character consistency across clips) before relying on it for an important project
Before you start
- A free account at runwayml.com
- A high-quality image ready if you want to try image animation (the results are stronger than text-only generation)
Runway is one of the few AI tools actually used in real film and advertising productions, not just experiments. You can generate a clip from a text description, but the strongest practical use is turning a still image into a moving shot — and that’s the difference most beginners miss when they start from a blank text prompt instead of an image.
This guide walks through opening a free account, understanding the credits system before it empties, choosing the right input method (image vs. text), then building longer videos from assembled short clips.
The steps
The steps are ordered realistically: from knowing the free plan’s limits, to choosing the right generation method, to economical workflows that save your credits.
Steps
Step 1: Create an account and know the free plan's limits before you start
Go to runwayml.com and create a free account. The free plan gives you just 125 trial credits — enough for a few short attempts and then you're stopped, so treat it as a sample for getting to know the tool, not a working plan. If you decide to continue, Standard starts at $12/month (625 credits + watermark-free export), and Pro at $28/month (2,250 credits + team features).
Note: Before spending credits on serious attempts, browse the dashboard and look at examples from the Runway community to understand what actually produces good results.
Step 2: Choose between text or image generation — image usually wins
From the dashboard, pick the generation tool. You have two paths: write a full text description of the scene, or upload a still image as the starting point and describe the motion you want. In practice, image-based generation gives tighter control and more stable results — and that is genuinely how much of the content you see in the wild gets made, not from a blank text prompt.
Note: If you have an image generated elsewhere, like Midjourney, upload it directly as your starting point rather than re-describing every detail in text.
Step 3: Describe the motion and set camera direction simply
Write a short, clear description of the movement you want (a person walking, the camera pushing in, wind moving hair). The tool also gives you direct camera controls — direction of travel and zoom. Avoid complex prompts stacking several simultaneous events; they tend to produce chaotic, unpredictable output.
Note: One or two clear sentences beat a full paragraph — the tool handles one specific motion far better.
Step 4: Test at low quality before spending heavier credits
Video generation is enormously more computationally expensive than images or text, and every second of high-quality video consumes noticeable credit. The economical workflow: test your idea and prompt at lower quality first, and only render the final version at high quality once you've locked the right description and confirmed the motion looks how you want.
Note: Don't judge an idea off one failed attempt — refine the description with more detail (speed, direction, moving element) and retry at low quality.
Step 5: Generate several short clips and edit them together
Each generation gives you a short clip — a few seconds, not minutes. For anything longer (an ad, a short cinematic piece), the practical approach is generating multiple separate clips and assembling them in an external editor. Don't expect one button click to hand you a finished two-minute video.
Note: Plan the clip sequence before generating (opening, peak, close) so you know exactly how many clips you need and save credits.
Common mistakes — and how to avoid them
MistakeExpecting a complete long video from a single generation click.
Do this insteadKnow from the start that each generation is a few seconds long, and build the full video by assembling several clips in an editor.
MistakeGenerating at maximum quality while you're still experimenting with the prompt.
Do this insteadTest the description at low quality first, settle on the idea, then render one high-quality final version — so your credits don't vanish on drafts.
MistakeWriting one long sentence cramming several simultaneous events into the motion description.
Do this insteadSimplify to one or two clear sentences — overly complex descriptions produce chaotic, unpredictable results.
MistakeRelying on Runway for consistent characters or locations across many clips without review.
Do this insteadCheck each clip manually for consistency (same character, same place) before assembly — this remains an open technical challenge even in the newest models, not something guaranteed automatically.
❓ Frequently asked questions
Is the free plan enough for a real trial?
Barely. You get 125 trial credits covering a few short attempts, then you stop. Treat it as a sample for learning the tool, not a working plan. Paid plans start at $12/month.
How long can the video be per generation?
Short clips only — a few seconds each. The practical approach is generating several short clips and assembling them in an editor. Don't expect a two-minute video from one click.
Why does it burn through credits so fast?
Because video generation is vastly more computationally expensive than images or text — every second of high-quality video consumes tangible credit. Tip: test your idea at lower quality first, then render the final version at high quality once the prompt is settled.
Can it animate an image I brought from another tool like Midjourney?
Yes — and it's genuinely one of its strongest practical uses. Upload the finished image, describe the motion you want, and it turns it into a moving clip. A lot of the content you see was produced exactly this way, not from blank-text generation.