Image Generator is the Nodespell Creative Tool for creating a new image from a written prompt. You describe the image, choose a model, set its size and other options, and select Generate. Some models also accept reference images to guide subject or style. The result is an image take on a model node in your graph.
When should I use Image Generator?
Section titled “When should I use Image Generator?”Use Image Generator when you start from words, not from an existing picture.
| If you want to | Use |
|---|---|
| Create a new image from a description | Image Generator |
| Control camera, lens, shot type, color look, and lighting as named choices | Cinematic Shot |
| Change an existing image with an instruction | Image Editor |
| Reframe an existing image from a new angle | Variations |
| Turn a still into motion | Image to Video |
Generate an image
Section titled “Generate an image”- Open Create and select Image Generator in the tool rail.
- Check the model card at the top. The default model is GPT Image 2.5 Flare; select the card to choose another model.
- Write your prompt.
- If the model has a References section, add reference images with Choose assets. You can pick from your Assets or upload files.
- Set the size and any options under Output and Settings. Open More settings for the rest.
- Set Generations to the number of images you want, from 1 to 4.
- Select Generate.
On a Graph canvas, add Image Generator from the Tab menu and use the same controls in Parameters. See Creative Tools on the canvas.
Image Generator inputs and controls
Section titled “Image Generator inputs and controls”Image Generator has no required media input. Only the prompt is required for most models. The controls fixed by the tool itself are:
| Control | What it does | Options or default |
|---|---|---|
| Model card | Chooses the model that runs | Default GPT Image 2.5 Flare |
| Previous model / Next model | Steps through the tool’s models without opening the picker | Create only |
| Prompt | Describes the image you want | Required for most models |
| References | Reference images that guide the result, when the model accepts them | Model-dependent |
| More settings | Every other setting the model has, with a count of changed values | Collapsed |
| Generations | How many runs to submit at once | 1 to 4, default 1 (Create only) |
| Generate | Validates the inputs and runs the model | Shows the credit estimate on paid plans |
Which models work with Image Generator?
Section titled “Which models work with Image Generator?”Image Generator lists every available model that creates images from a prompt. The picker shows these under Featured:
- GPT Image 2.5 Flare (default)
- GPT Image 2.5 Sunburst
- Nano Banana 2.1
- Grok Imagine Image 2.0
- FLUX 3 Image
- Recraft V4.1
All models lists the rest, including Nano Banana 2, Nano Banana Pro, Seedream 5 Pro, GPT Image 2, Ideogram, Recraft, and Qwen models. Model availability can change; the picker always shows the current list.
How do the controls change with the model?
Section titled “How do the controls change with the model?”The settings below Prompt come from the selected model. With the default model, GPT Image 2.5 Flare, you see:
| Setting | Options (GPT Image 2.5 Flare) |
|---|---|
| Image Size | Auto, 1024x1024, 1536x1024, 1024x1536, 2048x2048, 2048x1152, 2560x1440, 3840x2160, or Custom; default 1024x1024 |
| Custom Width / Custom Height | 256 to 3840 pixels, for Custom size |
| Quality | Low, Medium, High, XHigh, Max, or Auto; default High |
| Output Format | PNG, JPEG, or WebP; default PNG |
| Compression | 0 to 100, default 90 |
GPT Image 2.5 Flare takes a prompt only. Models such as Nano Banana 2 and Nano Banana 2.1 add Reference images, Aspect ratio, and Resolution; others add settings such as a seed or quality level. When you switch model, Nodespell carries your prompt and the closest matching size to the new model and lists anything that changes.
Where does the generated image go?
Section titled “Where does the generated image go?”Selecting Generate adds a model node to the current Level of your graph and runs it once per generation. Each finished image is kept as a take on that node. The Results area of the composer shows the current result with Show older result and Show newer result, View fullscreen, and Continue with this result.
Continue with this result opens a choice of Image Upscaler (a larger, refined version) or Image to Video (use the image as the starting frame). Nodespell keeps the exact image as a visible Asset node and connects it to the next tool.
Common problems
Section titled “Common problems”| Problem | What to do |
|---|---|
| “This value is required.” under the prompt | Write a prompt before you select Generate. |
| No References section | The selected model does not accept reference images. Choose a model with the Refs badge in the picker. |
| “Some generations could not be submitted.” | Part of the batch failed to start. The runs that started are kept in the node’s history; select Generate again for more. |
| “The Create action could not be completed.” | Nothing ran. Check your inputs and try again. |
| The estimate shows Varies | The cost depends on your input or output size; the run button updates as you change settings. |
Frequently asked questions
Section titled “Frequently asked questions”Which model does Image Generator use by default?
Section titled “Which model does Image Generator use by default?”Image Generator starts with GPT Image 2.5 Flare. You can switch to any model the picker lists, and your prompt carries over.
How many images can I generate at once?
Section titled “How many images can I generate at once?”In Create, set Generations from 1 to 4. Each generation is a separate run of the same node, and each result is kept as a take. On the canvas, each run makes one take.
Can I use reference images with Image Generator?
Section titled “Can I use reference images with Image Generator?”Yes, when the selected model accepts them. Models such as Nano Banana 2.1 show a Reference images control; the default model takes a prompt only.
Does Image Generator edit an existing image?
Section titled “Does Image Generator edit an existing image?”No. To change an existing image, use Image Editor or Variations.
Related
Section titled “Related”- Make your first image — a guided first run
- Choose a model — featured models, estimates, switching
- Cinematic Shot — camera-led image generation
- Takes — browse and choose results
- Image Upscaler — enlarge a generated image