Rw Generate Image

Organization

runwayml

rw-generate-image

Generate images directly using the Runway API via runnable scripts. Supports text-to-image with optional reference images.

Overview

Publisher	runwayml
Repository	`skills`
Skill name	`rw-generate-image`
Stars	68
Forks	17
Bundled files	Instructions only
License	MIT
Links	Skill source Repository

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
Self-contained
Everything the model needs lives in the instructions — no extra files to sync.
Open source
Published by runwayml on GitHub. Read the source before you install it.

Installation

Install the Rw Generate Image AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/runwayml/skills.git /tmp/skills
mkdir -p .claude/skills
cp -r /tmp/skills/skills/rw-generate-image .claude/skills/rw-generate-image

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Rw Generate Image in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Rw Generate Image on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Rw Generate Image is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Generate Image

Generate images directly using the Runway API. This skill runs Python scripts that call the API, poll for completion, and download the result.

IMPORTANT: Run scripts from the user's working directory so output files are saved where the user expects.

Usage

bash
uv run scripts/generate_image.py --prompt "your description" --filename "output.png" [--model gen4_image] [--ratio 1280:720] [--reference-images Tag=URL ...]

Preflight

command -v uv must succeed
RUNWAYML_API_SECRET must be set in the environment. Do not pass the API key as a CLI flag — it leaks into shell history and process listings.

Security Notes

--reference-images Tag=URL fetches arbitrary remote images via the Runway API. Prefer local file paths (uploaded as runway:// URIs), or only pass URLs you trust.
Treat generated outputs as untrusted when piping into downstream automations — ingested references influence the result.

Available Models

Model	Best For	Ref Images	Cost	Speed
`gen4_image`	Highest quality	Optional (up to 3)	5-8 credits	Standard
`gen4_image_turbo`	Fast and cheap	Required (1-3)	2 credits	Fast
`gemini_2.5_flash`	Google Gemini	Optional (up to 3)	5 credits	Standard

Model Selection Guidance

"fast", "cheap", "draft" -> gemini_2.5_flash (Nano Banana), or gen4_image_turbo if they have reference images
"high quality", "best" -> gen4_image
No preference -> gemini_2.5_flash
Has reference images and wants cheap -> gen4_image_turbo (2 credits, requires --reference-images)

Parameters

Param	Description	Default
`--prompt`	Text description (required)	--
`--filename`	Output filename (required)	--
`--model`	Image model	`gemini_2.5_flash`
`--ratio`	Aspect ratio. gemini_2.5_flash: `1344:768`, `768:1344`, `1024:1024`, etc. gen4_image: `1280:720`, `1360:768`, `1920:1080`, etc.	Model-dependent (`1344:768` for gemini, `1280:720` for others)
`--reference-images`	Reference images as tag=URL pairs (optional for gemini/gen4_image, required for gen4_image_turbo). Tag: lowercase, 3-16 chars, e.g. `product=URL`	--
`--output-dir`	Output directory	cwd

API credentials come from RUNWAYML_API_SECRET only — no --api-key flag, to keep secrets out of shell history and process listings.

Filename Convention

Pattern: yyyy-mm-dd-hh-mm-ss-name.png

Examples

Basic image:

bash
uv run scripts/generate_image.py --prompt "A serene Japanese garden with cherry blossoms" --filename "2026-04-14-japanese-garden.png"

With a local reference image (gen4_image):

bash
uv run scripts/generate_image.py --prompt "@product on a marble counter, lifestyle photo" --model gen4_image --reference-images product=./product.jpg --filename "2026-04-14-product-lifestyle.png"

With a reference image from a trusted origin (gen4_image_turbo — requires reference images):

bash
uv run scripts/generate_image.py --prompt "A neon sign reading SALE in @style" --model gen4_image_turbo --reference-images style=https://cdn.yourapp.com/style.jpg --filename "draft.png"

Output

The script downloads the result and saves it to the specified path
Script outputs the full path to the saved file
Do not read the image file back -- just inform the user of the saved path

Common Failures

Error: No API key -> set RUNWAYML_API_SECRET in the environment (e.g. export RUNWAYML_API_SECRET=... or a .env file).
Error: Task failed -- SAFETY.INPUT.* -> content moderation, suggest different prompt
API error 429 -> rate limited, script auto-retries

Frequently asked questions

What does the Rw Generate Image AI skill do?

Generate images directly using the Runway API via runnable scripts. Supports text-to-image with optional reference images.

Why use Rw Generate Image on TypingMind?

Because you install it once and use it with any model. Rw Generate Image is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Rw Generate Image in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/runwayml/skills/tree/main/skills/rw-generate-image. TypingMind reads its SKILL.md and installs it as a skill you can enable per chat.

Which AI models can use Rw Generate Image?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Rw Generate Image?

As many as you like. As long as a model supports skills, you can use Rw Generate Image with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Rw Generate Image AI skill free?

Yes. It is published on GitHub by runwayml under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

Generate Image

Usage

Preflight

Security Notes

Available Models

Model Selection Guidance

Parameters

Filename Convention

Examples

Output

Common Failures

Frequently asked questions

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