FLUX1.1 [pro]

Version: 1

Black Forest Labs•Last updated August 2025

Vision

Generate images with amazing image quality, prompt adherence, and diversity at blazing fast speeds. FLUX1.1 [pro] delivers six times faster image generation and achieved the highest Elo score on Artificial Analysis benchmarks when launched, surpassing all other models on the leaderboard. Model developer: Black Forest Labs Supported languages: English Model Release Date: June 30, 2025

Evaluation

FLUX1.1 [pro] was evaluated using the Artificial Analysis image arena benchmark (https://artificialanalysis.ai/text-to-image ), a popular benchmark for text-to-image models. The model was tested under the codename "blueberry" and demonstrated superior performance across key metrics including image quality, prompt adherence, diversity, and generation speed. Internal benchmarking was also conducted to measure inference speed improvements compared to previous versions. Elo Bar

*Overall, FLUX1.1 [pro] achieves a high Elo score on the Artificial Analysis leaderboard while providing 3x faster generation than FLUX.1 [pro]. The model demonstrates superior performance in image quality, prompt adherence, and out

Model Specifications

Context Length131072

LicenseCustom

Last UpdatedAugust 2025

Input TypeText

Output TypeImage

PublisherBlack Forest Labs

Languages1 Language

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