Imagen 4 comes in three tiers on this canvas and the spread is wide enough that picking the wrong one is the main way to waste credits here. Fast at 4 credits is the cheapest image on the whole roster, which makes it the right tool for exploring widely. Ultra at 12 is for the single image that ships.
TL;DR
- Imagen 4 Fast: 4 credits, the cheapest image on the canvas. The exploration default
- Imagen 4: 8 credits, the middle tier
- Imagen 4 Ultra: 12 credits, highest fidelity for a final
- Where Imagen wins: photographic realism, natural light, plausible physical scenes
- Where it does not: text inside the image. Nano Banana Pro at 21 credits is the model for that
The tiers
Canon 8frame prices, a credit is $0.01 at pack rate:
| Tier | Credits | Use |
|---|---|---|
| Imagen 4 Fast | 4 | Exploration, volume, drafts, thumbnails |
| Imagen 4 | 8 | Middle ground |
| Imagen 4 Ultra | 12 | The one image that ships |
Thirty exploration images on Fast: 120 credits, about $1.20. That is the number that matters, because in image generation the reliable route to a good result is volume and hard selection rather than better prompting.
For comparison across the roster: Seedream 4 at 5, FLUX.2 [pro] at 5, Nano Banana Classic at 6, Seedream 5 at 6, Seedream 5 Pro at 7, Nano Banana 2 at 11, Nano Banana Pro at 21, Reve at 34.
Where Imagen is the right choice
Photographic realism. Imagen's house look is closer to a photograph than to an illustration, which makes it the pick when the image needs to read as something someone shot.
Natural light. Daylight, window light, overcast, golden hour. It handles light that behaves physically better than models that lean stylised.
Plausible physical scenes. Interiors, landscapes, objects on surfaces, anything where the arrangement needs to look possible.
Volume exploration at 4 credits. Nothing else on the canvas is cheaper per attempt.
Where to use something else
Text inside the image. Imagen is unreliable here like most image models. Generate the plate with a visually quiet area and set the type in your editor, which is cheaper and gives exact control. If text genuinely must be inside the image, Nano Banana Pro at 21 credits is the model, and you should still read it back from the image rather than trusting the prompt.
Deliberately illustrative work. Reve at 34 credits produces output that reads as illustration rather than as a photograph.
A specific stylised look. Seedream 5 at 6 credits is more steerable toward non-photographic styles.
Anything a customer verifies. Products, food, your premises, real people. Photograph those. A generated version misrepresents what exists.
How to use it
- Open a canvas, add an image node, pick the Imagen tier.
- Set the aspect ratio for the destination, not for the preview. 2:3 for a Pinterest pin, 9:16 for social, 16:9 for a slide.
- Explore on Fast. Twenty to thirty attempts at 4 credits.
- Look at them together at final size. A thumbnail judged at full screen is judged wrong.
- Rerun the winning prompt on Ultra at 12 credits for the version that ships.
- Refine by editing, not re-prompting. Flux Edit at 7 credits keeps what was already right.
- Upscale once at the end. Clarity at 13 credits, or Topaz Image Upscale at 11 per 24-megapixel block for print.
What steers Imagen
Photographic language, because that is what its training rewards:
| Vague | Concrete |
|---|---|
| Beautiful lighting | Overcast diffuse, no hard shadow |
| Cinematic | 85mm, shallow depth of field, slight background compression |
| High quality | Delete it |
| Detailed | Name the detail, or delete it |
| Professional photo | 50mm, natural window light from the left |
Name the lens, the light source and its direction, and what should be out of focus. Then name what to leave out: "no text, no lens flare, no vignette."
Feeding video
The strongest use of a 4-credit image model on a video canvas: get the composition right as a still, cheaply, then animate it.
Prompting straight to video gives the model freedom over framing that you probably do not want. An Imagen 4 Fast still at 4 credits lets you settle subject, palette and composition, then image-to-video on Wan 3.0 at 24 credits keeps it. Twenty-eight credits per shot with a composition you actually approved.
Upscale the still first if it is soft, since that sharpening carries into every frame and there is no video upscaler to fix it afterwards.
FAQ
How much does Imagen 4 cost? Fast is 4 credits, standard 8, Ultra 12.
Which tier should I use? Fast for exploration, Ultra for the final. The middle tier is rarely the right answer.
Is Imagen good with text? No. Set type in your editor, or use Nano Banana Pro at 21 credits.
What is the cheapest image on 8frame? Imagen 4 Fast at 4 credits, about four cents.
Explore thirty times on Fast, finish once on Ultra. The 8frame canvas is free and unlimited, and generation is paid from $19/month.