GPT Image 2.5
OpenAI's image model for detailed renders that follow your prompt and reference photos closely.
High detail · Reference photos
LIVE · MULTI-MODEL
AI image generator online from text or reference photos
Kollab's AI image generator brings GPT Image 2.5, Nano Banana 2, and Grok Image into one composer. Generate from text or reference photos, then refine by chat.
Add a reference photoImage only
TRY:
Fresh renders
From the prompt galleryUI & Interfaces
Charts & Infographics
Illustration & 3D
Products & Brand
Food & Drink
Products & Brand
Photography & Realism
UI & Interfaces
UI & Interfaces
Charts & Infographics
Illustration & 3D
Products & Brand
Food & Drink
Products & Brand
Photography & Realism
UI & Interfaces
Products & Brand
Products & Brand
Products & Brand
Illustration & 3D
Products & Brand
Products & Brand
Photography & Realism
Products & Brand
Products & Brand
Products & Brand
Products & Brand
Illustration & 3D
Products & Brand
Products & Brand
Photography & Realism
Products & Brand
01 · ENGINES
Compare image modelsin one workspace.
AUTO
Not sure which model fits? Leave it on Auto and Kollab picks a model for your prompt and reference photo.
DEFAULT CHOICE
Nano Banana 2
Google's image model, a good fit for consistent characters, products, and follow-up edits.
Consistent · Multi-turn edits
Grok Image
xAI's image model for expressive, high-contrast visual styles.
Expressive · Stylized · High contrast
02 · EXPLORE
Generate AI imagesfrom text.
Examples with their prompts. Tap any card to try the prompt yourself.
03 · HOW IT WORKS
Create imagesfrom reference photos.
STEP 01STEP 02STEP 03
Describe or drop a reference
Type what you want, or upload a photo the model should stay faithful to.
Generate in one shot
One request renders the full image, with no multi-step compositing.
Edit and download generated images
Ask for changes in plain language, then request the sizes you publish at.
1080×1080 · 1920×1080 · 1080×1920 · 1200×63004 · FAQ
Questions,answered.
Which is the best free AI image generator?
It depends on the image you need. In Kollab you can start on the Free plan and try GPT Image 2.5, Nano Banana 2, and Grok Image on the same prompt, then keep the result that fits.
Is there a 100% free AI image generator?
Kollab's Free plan gives you 600 credits every 3 days, and credits do not carry over. Each image uses credits, so what you can generate depends on your balance. Pro is $20 per month.
Is ChatGPT the best image generator?
Different models are good at different things. ChatGPT's image model is OpenAI's GPT Image, which Kollab offers as GPT Image 2.5 next to Nano Banana 2 and Grok Image, so you can compare results on your own prompt in one workspace.
Can an AI image generator create images from text?
Yes. Describe the scene, subject, or style in plain text and the generator creates an image that matches. You can then refine the result by chat.
Can an AI image generator use an existing image?
Yes. Upload a reference photo with your prompt, and the model uses it as a guide for the subject, product, or composition.
Where are my generated images stored?
Every image is saved directly to your Kollab workspace task, where you can preview, edit, or download it whenever you need.
Describe it.Kollab renders it.
Open a task, pick a model or leave it on Auto, and get your first render in one shot.