The just4o.chat Images Update — Wikipedia image pulls, open sourced image models, Nano Banana 2, MiniMax, and more.
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Feature

Image Generation

Current image models from multiple providers, with one Images workspace for generation, references, project media, and iteration history.

How it works

Image generation is one tool layer with multiple back-end models: ChatGPT Image, Nano Banana and Nano Banana 2, Imagen 4 variants, Grok Imagine, and FLUX.1 Kontext models all sit behind the same product surface.

You can generate inside chat or move to the dedicated Images page for a more focused workflow. Account → Image Generation stores your default model, aspect ratio, and any size or quality settings supported by that model.

Images page and editor

The Images page gives you a dedicated prompt input, reference-image workflow, collapsible iteration history, and project-media tray for the active image conversation.

Reference limits vary by model. Some models allow one reference, others allow several, and the interface shows those constraints before you generate instead of after a failure.

Wikipedia tags and project media

Search Wikipedia articles directly from the Images page, tag useful images to your gallery, and add them as references without leaving the editor.

That tagged-image flow sits alongside your project media, generated images, and uploaded references so visual research and generation live in the same place.

Models and credits

Each generation uses image credits. Monthly image credit limits are 0 on Explorer, 10 on Builder, 25 on Studio, 50 on Aurora, and 100 on Pro.

See the table below for the current per-model credit cost and reference-image rules as they are configured in the app.

Image models reference

OpenAI

ModelReference imagesCredits per image
ChatGPT Image LatestUp to 8 references1–4

Google

ModelReference imagesCredits per image
Nano Banana / Gemini 2.5 Flash ImageUp to 3 references2
Nano Banana Pro / Gemini 3 Pro ImageUp to 8 references3–6
Nano Banana 2 / Gemini 3.1 Flash ImageUp to 8 references2–4
Imagen 4 FastUp to 3 references1
Imagen 4Up to 3 references1
Imagen 4 UltraUp to 3 references2

xAI

ModelReference imagesCredits per image
Grok ImagineUp to 3 references1
Grok Imagine ProUp to 3 references2

Black Forest Labs

ModelReference imagesCredits per image
FLUX.1 Kontext Pro1 reference1
FLUX.1 Kontext Max1 reference2

Open Images

Go to the dedicated Images page to generate, edit, and manage your creations with reference images and Wikipedia integration.