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Flux 1.1 Pro

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Image modelBlack Forest Labs

Overview

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].

Best of Flux 1.1 Pro

A digital close-up of a glowing green bonsai tree planted on a dark, illuminated circuit board. Yellow neon-like wires wrap around the trunk and roots. The background features an out-of-focus cyberpunk city skyline at night with blue and purple lights. Generated by Flux 1.1 Pro at 1440x1440 resolution.Glowing Cybernetic Bonsai — Flux 1.1 ProA surrealist image of a melting metallic pocket watch hanging from a gnarled, leafless tree branch. The liquid metal drips down to form a pool in the desert sand below. Generated using Flux 1.1 Pro at 1440x1440 resolution, the scene features warm, golden tones under a hazy sky.Flux 1.1 Pro: Melting Pocket Watch in DesertA 3D-style digital illustration of cute cartoon sea creatures having a tea party underwater, generated by Flux 1.1 Pro at 1440x1440 resolution. A pink octopus pours tea at a blue table for a purple seahorse, a small green creature, and an orange crab, surrounded by glowing yellow plants.Undersea Sea Creature Tea Party — Flux 1.1 ProA high-resolution 1440x1440 still life image generated by Flux 1.1 Pro. A rustic wicker basket is tipped on its side on a dark wooden table, spilling out fresh fruit. The selection includes a large cluster of glossy red grapes, a sliced half of an orange, and several dark purple plums.Still Life with Spilling Fruit — Flux 1.1 ProA close-up, square 1440x1440 image generated by Flux 1.1 Pro. A translucent, glowing blue and orange flower grows directly from a dark microchip on a detailed computer circuit board. Glowing fiber-optic lines trace the stem, while warm orange lights illuminate the circuit paths below.Bioluminescent Flower on Circuit Board — Flux 1.1 ProA square 1440x1440 digital image of a futuristic bonsai tree generated by Flux 1.1 Pro. The tree features glowing purple and cyan holographic leaves, with its detailed roots intertwined with an illuminated electronic circuit board base. The background is a dark, out-of-focus cityscape with blue and yellow bokeh lights.Holographic Bonsai on Circuit Board — Flux 1.1 ProAn indoor shot of a busy ramen restaurant at night, with patrons seated at tables eating steaming bowls of noodles. Glowing pink and blue neon signs hang above, casting a vibrant light across the scene. Generated by Flux 1.1 Pro at 1440x1440 resolution.Bustling Neon Ramen Shop — Flux 1.1 ProA close-up shot of a fluffy ginger tabby cat with bright green eyes and white paws, lying on a cream-colored knitted blanket. Generated using Flux 1.1 Pro at 1440x1440 resolution, the image features soft natural lighting near a window with a shallow depth of field.Flux 1.1 Pro: Fluffy Ginger Cat on BlanketA digital art piece depicting a floating island with a large central tree and cascading waterfalls, suspended in a sunset sky above misty mountain peaks. This image was generated using the Flux 1.1 Pro model at a resolution of 1440x1440.Floating Island with Tree — Flux 1.1 ProA close-up shot of a glowing, bioluminescent flower with translucent blue and pink petals growing directly out of a dark, lit computer circuit board. Generated with Flux 1.1 Pro at 1440x1440 resolution, the image showcases glowing fiber-optic stems and neon-colored electronic components in the dark background.Bioluminescent Flower on Circuit Board — Flux 1.1 ProA close-up shot of vibrant, thick, colorful acrylic paint dripping down a textured off-white canvas. The neon shades of green, blue, orange, pink, and yellow merge as they flow downward. This high-resolution 1440x1440 image was generated using the Flux 1.1 Pro model.Dripping Rainbow Paint on Canvas — Flux 1.1 Pro

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.

Similar models

Dreamina 3.1ByteDanceFlux 1.1 UltraBlack Forest LabsImagen 4GoogleFlux Kontext MaxBlack Forest LabsFlux Kontext ProBlack Forest Labs

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.