FLUX 1.1 [pro]
FLUX 1.1 [pro] is a text-to-image generation model from Black Forest Labs, released in October 2024 with prompt upsampling support.
Black Forest LabsText-to-image generation from Black Forest Labs
FLUX 1.1 [pro] is a text-to-image generation model developed by Black Forest Labs, released in October 2024. It accepts text prompts and produces images at configurable resolutions, with inputs for width, height, seed, and prompt upsampling. The model supports a context window of up to 10,000 tokens for prompt input, allowing detailed scene descriptions.
FLUX 1.1 [pro] is the updated successor to FLUX.1 [pro] and is designed for high-quality image synthesis in professional and commercial workflows. Its prompt upsampling feature automatically enriches shorter or simpler prompts to improve output detail and coherence. The configurable seed input enables reproducible outputs, making it suitable for iterative creative work where consistency across generations is needed.
What FLUX 1.1 [pro] supports
Text-to-Image Generation
Generates images from natural language text prompts with a context window of up to 10,000 tokens, enabling detailed scene descriptions.
Prompt Upsampling
Automatically expands and enriches shorter prompts before generation to improve output detail and coherence.
Configurable Resolution
Supports selectable width and height inputs, allowing users to specify output image dimensions per generation.
Reproducible Outputs
Accepts a seed value input so that identical prompts and settings produce consistent, repeatable image results.
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Get Started FreeCommon questions about FLUX 1.1 [pro]
What type of model is FLUX 1.1 [pro]?
FLUX 1.1 [pro] is a text-to-image generation model. It takes a text prompt as input and produces a generated image as output.
What is the context window for FLUX 1.1 [pro]?
FLUX 1.1 [pro] supports a context window of 10,000 tokens, which allows for detailed and lengthy text prompts describing the desired image.
What does prompt upsampling do?
Prompt upsampling is an optional input that automatically expands or enriches a user's prompt before it is processed, which can improve the detail and quality of the generated image.
Can I get reproducible results with FLUX 1.1 [pro]?
Yes. The model accepts a seed input. Using the same seed, prompt, width, and height settings will produce consistent, repeatable image outputs.
Who developed FLUX 1.1 [pro] and when was it released?
FLUX 1.1 [pro] was developed by Black Forest Labs and released in October 2024. It is the updated version of the original FLUX.1 [pro] model.
What people think about FLUX 1.1 [pro]
Community discussion around FLUX 1.1 [pro] on Reddit reflects recognition of its standing among image generation models, with one thread noting its placement alongside Imagen 3 v2 on the Artificial Analysis benchmark leaderboard. Users in that thread appear to treat it as a reference point when evaluating newer models entering the space.
A separate thread indicates that Black Forest Labs is already preparing a successor model, FLUX.2 [pro], suggesting some community interest in what comes next rather than extended focus on the current version. No significant technical complaints or workflow-specific limitations were surfaced in the available threads.
Black Forest Labs is preparing to release FLUX.2 [pro] soon
New 4o Image Generation ranks #3 on Artificial Analysis, similar to Imagen 3 v2 and Flux 1.1 pro. Reve (Halfmoon) #1, Recraft V3 #2.
Parameters & options
A specific value that is used to guide the 'randomness' of the generation.
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