All Flux AI Models: Schnell vs Dev vs Pro vs Max
From the 2-credit Schnell to the 25-credit FLUX.2 [max] — every Flux AI model from Black Forest Labs compared.
Black Forest Labs has released 10 Flux AI models since August 2024, each targeting a different balance of speed, quality, and price. The lineup ranges from FLUX Schnell (2 credits, sub-second generation) to FLUX.2 Max (25 credits, maximum quality and resolution). Understanding which Flux model to use can save significant credits without sacrificing output quality.
The Flux family splits into three tiers. Budget models (Schnell, Klein, Dev) generate fast at 2-5 credits and work well for drafts, testing prompts, and high-volume workflows. Mid-range models (Flex, Pro, FLUX.2 Pro) add better prompt adherence, higher resolution, and editing capabilities at 6-12 credits. Premium models (Ultra, Kontext, Kontext Max, FLUX.2 Max) deliver the best quality with 4K output, character consistency across images, and advanced editing at 15-25 credits.
All 10 Flux models are available on Melies with shared credits. Generate the same prompt across Schnell and Max to see the quality difference, or use Schnell for iteration and switch to Pro for final output.
Updated March 2026
Quick Recommendation
Start with Flux Schnell (2 credits) for the best value. When quality matters more than cost, step up to Flux Kontext Max (25 credits). All 10 models are available on Melies — try each with the same prompt and compare.
Visual Comparison: Same Prompt, Every Model
All generated with the same prompt and seed 42. Click models to toggle.
FLUX.2 [klein]FLUX.2 [max]FLUX.2 [flex]FLUX.2 [pro]Flux KontextFlux Kontext MaxFlux Pro UltraFlux ProFlux SchnellFlux DevResolution Comparison
Same prompt rendered at different resolutions with Nano Banana 2.
Center crop at native resolution — notice the detail difference.
Image Model Specs: Side-by-Side Comparison
| Model | Released ↓ | Cost | Speed | Resolution | Refs | Edit |
|---|---|---|---|---|---|---|
| FLUX.2 [klein] | Jan 2026 | 5 | Fastest | 1K | — | |
| FLUX.2 [max] | Dec 2025 | 25 | Slower | Up to 4K | — | |
| FLUX.2 [flex] | Nov 2025 | 15 | Fast | Up to 4K | — | |
| FLUX.2 [pro] | Nov 2025 | 20 | Medium | Up to 4K | — | |
| Flux Kontext | May 2025 | 20 | Medium | 1K | — | |
| Flux Kontext Max | May 2025 | 25 | Slower | 1K | — | |
| Flux Pro Ultra | Nov 2024 | 20 | Slower | Up to 2K | 1 | |
| Flux Pro | Oct 2024 | 15 | Medium | 1K | — | |
| Flux Schnell | Aug 2024 | 2 | Fastest | 1K | — | |
| Flux Dev | Aug 2024 | 10 | Medium | 1K | — |
Each Model at a Glance
Flux Kontext Max
Black Forest Labs25Top reference-guided model preserving characters and styles with maximum fidelity.
FLUX.2 [max]
Black Forest Labs25Maximum performance Flux model with highest editing consistency and prompt following.
Flux Pro
Black Forest Labs15Professional-grade v1.1 with sharp details, accurate colors, and reliable output.
FLUX.2 [pro]
Black Forest Labs20Production-grade image generation and editing at an affordable price point.
Flux Pro Ultra
Black Forest Labs20Ultra-high resolution (up to 2K) with enhanced photorealism and detail.
Flux Kontext
Black Forest Labs20Reference-guided generation for subject and style consistency across images.
FLUX.2 [klein]
Black Forest Labs5Fast and efficient 4B model optimized for rapid iteration and prototyping.
Flux Dev
Black Forest Labs10Open-weight 12B model ideal for experimentation and custom workflows.
FLUX.2 [flex]
Black Forest Labs15Specialized for typography and fine details in text-heavy compositions.
Flux Schnell
Black Forest Labs2The fastest Flux model — perfect for quick previews and prompt testing.
Which AI Image Model Should You Pick?
Best value for everyday use
At 2 credits, Flux Schnell gives you the most generations per plan. Quick previews, testing prompts, iteration at lowest cost.
Maximum quality, no budget concerns
FLUX.2 [max] at 25 credits delivers the highest quality. Maximum quality, editing workflows, style-faithful generation.
Editing existing images
Flux Dev supports prompt-driven image editing — refine and transform images without starting from scratch.
Character or brand consistency
Supports up to 1 reference images to maintain visual consistency across generations.
Frequently Asked Questions
Try All 10 Models on Melies
Flux Schnell, FLUX.2 [klein], Flux Dev and more — all in one workspace. Switch models with one click, compare results side by side. Free credits included.
