AI Image Generation: 6 Models Compared — From 1,000 to 80,000 Credits
> TL;DR: 6 AI image models from 1,000 to 80,000 credits per image. Nano Banana 2 and Grok Image (1,000 cr each) are the cheapest; GPT Image 2 high/4K runs 80,000 cr. Nano Banana Pro 5,000 cr, FLUX 2 Pro 5,000 cr, GPT Image 1.5 medium/high tiered 3,000 / 15,000 cr.
DubVoice.ai offers 6 AI image generation models ranging from the 1,000-credit Grok Image to premium 80,000-credit GPT Image 2 outputs. Each model has unique strengths — here's how to choose the right one.
Budget Tier (1,000 - 3,000 credits)
Grok Image (1,000 credits)
xAI's Grok model — text-to-image and image-to-image. Supply up to 4 reference images and Grok auto-switches into i2i mode. Native aspect ratios: 1:1, 9:16, 16:9, 2:3, 3:2.
Best for: Quick iterations, concept exploration, social media drafts.
Nano Banana 2 (1,000 credits)
Fast general-purpose model. 1K native, up to 4 reference images. No 4K upscale.
Best for: Mood boards, quick concept exploration, brand-consistent imagery.
GPT Image 1.5 (3,000 / 15,000 credits)
OpenAI's photorealistic model. Two quality tiers: medium (3,000 cr) and high (15,000 cr). Up to 16 reference images for i2i.
Best for: Product photography, realistic mockups, photorealistic marketing materials.
Mid Tier (5,000 credits)
Nano Banana Pro (5,000 credits)
Premium quality. 1K native with optional 4K upscale via resolution: "4K". Up to 4 reference images.
Best for: Platform-specific content (Instagram squares, YouTube thumbnails 16:9, Pinterest 2:3), high-resolution exports.
FLUX 2 Pro (5,000 credits)
Professional model with reference image support (up to 5). Upload an image and generate variations, or create new images guided by a reference.
Best for: Product variations, character consistency, iterating on a design concept.
Premium Tier (4,500 - 80,000 credits)
GPT Image 2 (mode × resolution matrix)
The most capable image model. Pricing scales with both quality tier and output resolution:
| mode \ res | 1K | 2K | 4K |
|---|---|---|---|
| low | 4,500 | 5,500 | 6,500 |
| medium | 8,000 | 15,000 | 25,000 |
| high | 30,000 | 55,000 | 80,000 |
Image-to-image with up to 16 reference uploads.
Best for: Final hero shots, top-of-funnel marketing, anything where quality matters more than cost.
Supported Aspect Ratios
All models support flexible aspect ratios:
| Ratio | Use Case |
|---|---|
| 1:1 | Instagram posts, profile pictures |
| 4:3 | Presentations, blog images |
| 3:4 | Pinterest pins, mobile wallpapers |
| 16:9 | YouTube thumbnails, website headers |
| 9:16 | TikTok, Instagram Stories, mobile |
| 21:9 | Ultrawide banners, cinematic headers |
| 2:3 | Posters, book covers |
| 3:2 | Photography format, landscape shots |
Tips for Best Results
- Be specific in your prompt — "A golden retriever playing in autumn leaves, soft afternoon light, shallow depth of field" beats "dog in park"
- Use reference images when available (Nano Banana, FLUX 2 Pro, Grok) for consistent style
- Start cheap, refine expensive — Use Grok Image (1,000 credits) to test prompts, then switch to a premium model for the final version
- Match the model to the task — Need text rendering? Use Nano Banana Pro. Need photorealism? GPT Image 1.5. Need 4K? Nano Banana Pro at 4K or GPT Image 2 at 4K.
- Try multiple models — The same prompt produces very different results across models. Experiment!
Getting Started
Navigate to the Image Generation tool in your DubVoice.ai dashboard. Select your model, enter a prompt, choose your aspect ratio, and generate. All images are saved to your history for easy access.
Try DubVoice.ai Today
10500+ AI voices, 6 video providers, 10 image models, AI music, translation & more — all in one platform. No subscription required.