# FLUX Ultra AI Image Generator | PostEverywhere

**Source:** https://posteverywhere.ai/models/flux-ultra

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🔥 Premium 2K Resolution

# FLUX Ultra AI Image Generator

2K Resolution6 credits~15 secondsCommercial use ✓Premium 2K resolution AI image generation. The highest quality FLUX model for professional and print-ready output.

[Try FLUX Ultra](https://app.posteverywhere.ai/signup)[Compare All Models](https://posteverywhere.ai/models)Card required to start trial. Not charged until trial ends. Cancel anytime.

## How to Use FLUX Ultra in PostEverywhere

- 1Open PostEverywhere → AI Content Generator
- 2Select "FLUX Ultra" from the model dropdown
- 3Enter your prompt for high-resolution output
- 4Choose aspect ratio (2K resolution maintained)
- 5Generate → download or schedule to social media

## Technical Specifications

### Supported on PostEverywhere

Model IDfal-ai/flux-pro/v1.1-ultraProviderBlack Forest LabsCredits per Image6 creditsGeneration Time~15 secondsCommercial Use✓ Yes

### Output Specifications

Max Resolution2048 x 2048 (2K)Aspect Ratios1:116:99:164:33:421:9

### Known Limitations

- •Slower than FLUX Schnell
- •Higher cost than standard FLUX models
- •Very complex prompts may need iteration
- •Large file sizes for 2K output
Learn more about FLUX models on the [Black Forest Labs official site](https://bfl.ai/).

## All FLUX Models

[⚡ Fastest

### FLUX Schnell

2s, 1024px

1 credit](https://posteverywhere.ai/models/flux-schnell)[Balanced

### FLUX Dev

10s, 1024px

3 credits](https://posteverywhere.ai/models/flux-dev)🔥 2K

### FLUX Ultra

15s, 2048px

6 credits

[🆕 Latest

### FLUX.2 Pro

15s, 1440px

7 credits](https://posteverywhere.ai/models/flux-2-pro)

## FLUX Ultra FAQs

Common questions about using FLUX Ultra on PostEverywhere.

### What is FLUX Ultra?

FLUX Ultra (FLUX1.1 Pro Ultra) is the premium FLUX model that generates images at 2K resolution (2048x2048). It's the highest quality FLUX model for professional and print use.

### How much does FLUX Ultra cost on PostEverywhere?

FLUX Ultra costs 6 credits per image. This is actually cheaper than FLUX.2 Pro (7 credits) while offering 2K resolution output.

### What resolution does FLUX Ultra generate?

FLUX Ultra generates images at 2K resolution (2048x2048 pixels), double the resolution of standard FLUX models. This is ideal for print and large format use.

### FLUX Ultra vs Nano Banana Pro: which is better?

Nano Banana Pro (15 credits) offers 4K resolution and Google Search grounding. FLUX Ultra (6 credits) offers 2K at a lower price. Choose based on resolution needs and budget.

### When should I use FLUX Ultra vs FLUX Schnell?

Use FLUX Schnell (1 credit) for quick testing and iteration. Use FLUX Ultra (6 credits) for final high-resolution output, print materials, and professional use.

### Can I use FLUX Ultra for print?

Yes, FLUX Ultra's 2K resolution is suitable for most print applications. For very large prints, consider Nano Banana Pro at 4K resolution.

### Can I use FLUX Ultra images commercially?

Yes, all images generated with FLUX Ultra on PostEverywhere include full commercial usage rights for any business purpose.

## Try FLUX Ultra Today

Generate 2K images, then schedule them across all your social platforms.

[Start Free 7-Day Trial](https://app.posteverywhere.ai/signup)Card required to start trial. Not charged until trial ends. Cancel anytime.

## Related Resources

[### FLUX Schnell

Fastest at 1 credit](https://posteverywhere.ai/models/flux-schnell)[### Kling 2

Video with audio (7 credits/sec)](https://posteverywhere.ai/models/kling-2)[### Veo 3

Premium video with audio](https://posteverywhere.ai/models/veo-3)[### 9 Best AI Image Generators

Full comparison guide](https://posteverywhere.ai/blog/9-best-ai-image-generators)[### All AI Models

Browse model directory](https://posteverywhere.ai/models)