Flux 1.1 Pro
Premium color depth and clarity when you want campaign-ready art that feels handcrafted.
All modelsOverview
Flux 1.1 Pro is a text-to-image model developed by Black Forest Labs. It delivers generation speeds six times faster than the original Flux.1 Pro while improving overall image quality, prompt adherence, and output diversity. The model is optimized for professional workflows requiring rapid iteration and precise text rendering, serving as a highly efficient alternative to heavier models like Flux 1.1 Ultra or [Flux.2 pro].
Specifications · Text to image
- Input mode
- Text to image
- Aspect ratios
- 1:1, 1:3, 2:3, 3:1, 3:2, 3:4, 4:3, 16:9, 9:16, 10:16, 16:10
- Resolutions
- 540p, 720p, 1080p, 1440p (2K QHD), 2160p (4K UHD)
Pricing
Build with this model: the Flux 1.1 Pro API on the Hedra Developer Platform.
Flux 1.1 Pro API →Real output · generated with Flux 1.1 Pro
Best of Flux 1.1 Pro
Prompting
Prompt tips
- Write descriptive, natural language prompts rather than relying on comma-separated keyword stuffing.
- Wrap specific words in quotes when you want them rendered in the image (e.g.,
a neon sign reading "Open"). - Include technical photography terms (e.g., "medium format", "shallow depth of field", "macro lens") to achieve highly realistic lighting and textures.
- Disable the prompt upsampling feature if you need strict, exact control over the final composition.
About the model
Questions, answered
What is Flux 1.1 Pro best for?
Flux 1.1 Pro is known for its speed and photorealism. It generates images up to six times faster than its predecessor without sacrificing quality. It performs exceptionally well with strict prompt adherence, complex multi-subject scenes, and rendering legible text. It consistently ranks at the top of the Artificial Analysis image arena, making it highly effective for rapid storyboarding, marketing assets, and detailed conceptual art.
Who created Flux 1.1 Pro and when was it released?
Flux 1.1 Pro was developed by Black Forest Labs and officially released on October 2, 2024. During its blind testing phase on the Artificial Analysis leaderboard, the model was famously benchmarked under the codename "blueberry" before its true identity was revealed.
How does this model fit into the wider Flux family?
It serves as the direct, faster upgrade to the original Flux 1.0 Pro. Shortly after its launch, Black Forest Labs introduced an "Ultra" variant capable of 4-megapixel resolutions, which is available as Flux 1.1 Ultra. The model lineage progresses to the next generation of Black Forest Labs models, including [Flux.2 pro] and [Flux.2 max].
How should I format my prompts for Flux 1.1 Pro?
Unlike older diffusion models that rely heavily on comma-separated keyword tags, Flux 1.1 Pro thrives on natural language. Write detailed, descriptive sentences as if explaining the scene to a human photographer. Specify camera angles, lighting conditions, and subject placement clearly. For a deeper dive, check out this Flux prompting guide.
How can I make my images look less like AI and more like real photography?
To achieve maximum realism, take advantage of the model's Raw mode if your interface supports it. Raw mode is specifically tuned to capture the genuine feel of candid photography. It introduces natural imperfections, film grain, and authentic lighting that strips away the synthetic, overly polished AI aesthetic. It is highly recommended for portraits and nature shots.