FLUX Ultra AI Image Generator
Premium 2K resolution AI image generation. The highest quality FLUX model for professional and print-ready output.
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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 ID
- fal-ai/flux-pro/v1.1-ultra
- Provider
- Black Forest Labs
- Credits per Image
- 6 credits
- Generation Time
- ~15 seconds
- Commercial Use
- ✓ Yes
Output Specifications
- Max Resolution
- 2048 x 2048 (2K)
- Aspect Ratios
- 1:116:99:164:33:421:9
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.
All FLUX Models
FLUX Schnell
2s, 1024px
1 credit
FLUX Dev
10s, 1024px
3 credits
FLUX Ultra
15s, 2048px
6 credits
FLUX.2 Pro
15s, 1440px
7 credits
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 TrialCard required to start trial. Not charged until trial ends. Cancel anytime.