FLUX.1.1 [pro] — reviews, specs & pricing

Black Forest Labs' fast, high-quality text-to-image model.

Summary

FLUX1.1 [pro] is a 12B parameter diffusion transformer producing high-fidelity images from text prompts with improved speed over the original FLUX.1. It's available via API and partners like Replicate. It offers ultra mode for high-resolution output.

Sample use case

Used for creative image generation, marketing assets, and design prototyping. Popular among developers building image-generation apps.

Specifications

  • Provider: black forest labs
  • License: closed
  • Parameters: 12B
  • Released: 2024-10-03

Pros

  • High image quality
  • Fast generation
  • Ultra high-res mode

Cons

  • Closed pro weights
  • Per-image API cost
  • No fine-tuning on pro tier

Average rating 4.3 from 4 community reviews on Reviuws.

Community reviews

VentureBeat on FLUX.1.1 [pro]

Rating: 4.0 / 5 — by VentureBeat staff (use case: developer image generation)

VentureBeat frames FLUX 1.1 Pro as a faster, higher-quality successor that cements Black Forest Labs as a serious Midjourney rival, with a new developer API as the key differentiator.

Pros: Significantly faster generation; developer-friendly paid API.

Cons: Full speed and quality require paid API access.

Decrypt on FLUX.1.1 [pro]

Rating: 5.0 / 5 — by Jose Antonio Lanz (use case: image generator benchmarking)

Decrypt positions FLUX 1.1 Pro as beating Ideogram and Midjourney on speed and quality benchmarks, effectively the best image generator at launch despite being hard for ordinary users to run.

Pros: Benchmarked ahead of Midjourney and Ideogram; six times faster than FLUX.1 Pro.

Cons: Not easily self-hosted; access mainly through the API or partners.

Artificial Analysis on FLUX.1.1 [pro]

Rating: 4.0 / 5 — by Artificial Analysis (use case: quality and price benchmarking)

Artificial Analysis' arena evaluation gives FLUX1.1 [pro] a strong Elo in blind quality-preference voting, alongside generation-time and price metrics showing a well-balanced, fast performer.

Pros: Competitive blind-test Elo score; fast generation relative to peers.

Cons: Not top-ranked; trails newer models over time.

PetaPixel on FLUX.1.1 [pro]

Rating: 4.0 / 5 — by PetaPixel staff (use case: photorealistic image generation)

Reviewing the FLUX.1 family from the Stable Diffusion creators' new startup, PetaPixel judges it on par with Midjourney and DALL-E in fidelity, with notably better hand rendering.

Pros: Fidelity comparable to Midjourney and DALL-E; much improved hands and anatomy.

Cons: Stable Diffusion's earlier struggles raise questions about long-term momentum.

Frequently asked questions

What is FLUX.1.1 [pro]?

FLUX1.1 [pro] is a 12B parameter diffusion transformer producing high-fidelity images from text prompts with improved speed over the original FLUX.1. It's available via API and partners like Replicate. It offers ultra mode for high-resolution output.

How much does FLUX.1.1 [pro] cost?

Pricing for FLUX.1.1 [pro] is not publicly listed.

Is FLUX.1.1 [pro] open source?

FLUX.1.1 [pro] is released under the closed license.