Black Forest Labs

FLUX 1.1 Pro

Name: FLUX 1.1 Pro
Availability: InStock
Author: Black Forest Labs

FLUX 1.1 Pro is a text-to-image generation model from Black Forest Labs, offered through the company's API and third-party inference providers on a per-image basis.

From

$0.040 / image

across 1 provider

Compare Prices

API Pricing

Provider	Price /img	Updated	Source
Replicate	$0.040/img	9/24/2026

Prices updated daily. Last check: Sep 25, 2026

Model Details

General

Creator: Black Forest Labs
Modalities: Text

Capabilities

Tool Calling: No
Open Source: No
Aliases: black-forest-labs/flux-1.1-pro, FLUX1.1 [pro]

Strengths & Limitations

Strengths

Text-to-image generation available through multiple hosted inference providers under the alias black-forest-labs/flux-1.1-pro, so you are not locked to a single vendor
Part of Black Forest Labs' commercial FLUX "pro" tier, an updated release in the same tier as FLUX.1 [pro]
Black Forest Labs positioned this version around faster per-image generation than the earlier pro release
Per-image billing model makes cost estimation straightforward for batch or campaign workloads
Some providers expose a high-resolution "ultra" mode alongside the standard endpoint for larger outputs
Simple API surface (prompt plus size/seed parameters) that fits easily into automated content pipelines
No GPU provisioning or model hosting required, unlike self-hosted open-weight image models

Limitations

Served as a hosted commercial API — we do not track downloadable weights for this pro-tier model, so on-premise deployment is not something you can assume
Available parameters, maximum resolution, and modes differ between providers, so outputs and options are not perfectly portable
Per-image pricing typically scales with resolution or mode, which can make high-volume, high-resolution work expensive relative to self-hosted alternatives
Rendering of long or complex text inside images remains a common weak point for image generation models generally, and should be validated for your use case
No token-based context window or conversational interface — it cannot be used as a drop-in for chat or reasoning workloads

Key Features

•Text-to-image generation from natural-language prompts

•Commercial "pro" tier of the Black Forest Labs FLUX family

•Available under the provider alias black-forest-labs/flux-1.1-pro

•Configurable output dimensions / aspect ratio (provider-dependent)

•Seed parameter for reproducible generations where exposed

•High-resolution "ultra" endpoint offered by some providers

•Per-image billing rather than per-token billing

•REST API access suitable for batch and pipeline automation

About FLUX 1.1 Pro

FLUX 1.1 Pro (also written FLUX1.1 [pro], and identified in many provider catalogs as black-forest-labs/flux-1.1-pro) is an image generation model developed by Black Forest Labs. It sits in the company's commercial "pro" line of the FLUX family, which is distributed through the Black Forest Labs API and a set of hosted inference partners rather than as a general-purpose chat endpoint. It followed the earlier FLUX.1 [pro] release as an updated version of the same commercial tier. As an image generation model, FLUX 1.1 Pro is driven by a text prompt and returns raster images, with request parameters that typically cover output dimensions or aspect ratio, seed, and safety/format options depending on the provider. Because it is a diffusion-style image model rather than a language model, it has no context window in the token sense; the practical constraints are prompt length, the resolutions a given provider exposes, and per-image generation latency. Black Forest Labs positioned this release around faster generation than its predecessor in the same tier, and some providers additionally expose an "ultra" high-resolution variant alongside the standard endpoint — check the specific provider's documentation for which modes and maximum resolutions are available. In practice FLUX 1.1 Pro is used for marketing and social imagery, concept art, product and editorial visuals, stock-style photography substitutes, and any pipeline that needs programmatic image generation from text. Buyers usually compare it against other hosted per-image APIs and against open-weight image models they could self-host on rented GPUs; the trade-off is convenience and consistent output quality through an API versus the fixed cost of running your own inference. Note that pricing for image models is normally quoted per image (and varies with resolution or mode), not per token — see the pricing table on this page for what each provider currently charges.

Common Use Cases

FLUX 1.1 Pro suits workloads where images must be produced programmatically from text descriptions: marketing and ad creative variations, social media assets, blog and editorial illustration, e-commerce and product concept visuals, game and film concept art, mood boards, and synthetic imagery for design exploration. Its per-image API model fits well in content management systems, creative automation tools, and app features that generate imagery on user request, where the predictable per-image cost is easier to budget than reserving GPU capacity. Teams generating very large volumes at high resolution, or those needing to fine-tune and control weights directly, often compare it against open-weight image models running on rented GPUs; teams that value a maintained hosted endpoint with consistent output typically stay on the API. It is not appropriate for text generation, chat, embedding, or transcription tasks — those need separate models from the catalog.

Frequently Asked Questions

How much does FLUX 1.1 Pro cost?

Image models like FLUX 1.1 Pro are normally billed per generated image, and the rate can differ by provider and by output resolution or mode (for example a standard versus an ultra endpoint). Because rates change and vary between hosts, check the pricing table on this page for current per-image pricing from each provider we track.

What is FLUX 1.1 Pro best used for?

It is a text-to-image model, so it fits marketing and social creative, editorial illustration, concept art, product and mood-board visuals, and any application that needs images generated on demand from a prompt. It is not a chat or reasoning model and cannot be used for text generation tasks.

How does FLUX 1.1 Pro differ from FLUX.1 [pro]?

FLUX 1.1 Pro is a later release in the same commercial pro tier from Black Forest Labs, positioned by the company around faster image generation than the earlier pro model. If you are choosing between them, compare generation latency and per-image cost at the provider you plan to use.

Can I run FLUX 1.1 Pro on my own GPUs?

The pro tier is distributed as a hosted API through Black Forest Labs and partner inference providers; we do not track downloadable weights for it. If self-hosting is a requirement, compare against open-weight image models you can deploy on rented GPU instances, and factor GPU hourly cost against per-image API pricing.

Does FLUX 1.1 Pro have a context window?

No — context window is a language-model concept measured in tokens. FLUX 1.1 Pro is an image generation model, so the relevant limits are prompt length, the output resolutions your provider exposes, and per-image generation time.