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Image model comparison · 2 models · Updated Nov 2, 2026

FLUX.2 [flex] vs GPT-5 Image

Newest: FLUX.2 [flex] · Widest inputs: GPT-5 Image · Self-hosting: No open weights. Not enough arena votes yet for a quality score, so this is a spec comparison.

  1. Black Forest Labs

    FLUX.2 [flex]

    Released Nov 25, 2025

    • Text to image
    • Image editing
    • Arena1,224
    • From$0.05/image
    • Max size—
    Full specs Remove FLUX.2 [flex]

  2. OpenAI

    GPT-5 Image

    Released Oct 14, 2025

    • Text to image
    • Image editing
    • Arena—
    • From—
    • Max size—
    Full specs Remove GPT-5 Image

  3. Add a model

    Make it a three-way comparison.

01 — At a glance

Where they differ

Quality is the arena score from blind, side-by-side human votes. Price, length and resolution come from each lab’s own listings.

  • NewestFLUX.2 [flex]FLUX.2 [flex] Nov 25, 2025 · GPT-5 Image Oct 14, 2025
  • Widest inputsGPT-5 ImageFLUX.2 [flex]: Text prompts, Reference images · GPT-5 Image: Text prompts, Reference images, PDFs
  • Image editingBoth edit imagesTakes a reference image as input: FLUX.2 [flex] yes · GPT-5 Image yes
  • Self-hostingNo open weightsBoth are available only through APIs and apps
  • Most API hostsGPT-5 ImageFLUX.2 [flex]: 1 · GPT-5 Image: 2
02 — Side by side

Every spec in one table

Dashes mean the data is not published.

FLUX.2 [flex] vs GPT-5 Image specifications side by side
SpecificationFLUX.2 [flex]Black Forest LabsGPT-5 ImageOpenAI
Quality (blind human votes)
Text to image arenaElo-style score · higher is better1,156 ±3#30 of 82 · 156,876 votes—
Image editing arenaElo-style score · higher is better1,224 ±3#43 of 61 · 443,912 votes—
Price
Starting price$0.05/image 1 MP—
How it is billedBilled per megapixel.—
Output
ProducesImagesImages
Images per requestUp to 1—
Inputs
Text promptsYesYes
Reference images (editing)YesYes
Max reference images8—
Access
WeightsProprietaryProprietary
API hosts12 (best)
ReleasedNov 25, 2025Oct 14, 2025
03 — Questions

Which should you choose?

Which is better, FLUX.2 [flex] or GPT-5 Image?

Neither model has enough arena votes for a reliable quality score yet, so this page compares specs only. Run the same three or four prompts through each and judge the results.

Which is cheaper?

FLUX.2 [flex] costs from $0.05/image (1 MP). GPT-5 Image has no published per-image price. Prices are list rates and change often; check the lab before budgeting.

What is the difference between FLUX.2 [flex] and GPT-5 Image?

FLUX.2 [flex] is an image model from Black Forest Labs (Nov 25, 2025), taking text prompts and reference images and producing images. GPT-5 Image is an image model from OpenAI (Oct 14, 2025), taking text prompts, reference images and pdfs and producing images.

Which is newer?

FLUX.2 [flex] Nov 25, 2025; GPT-5 Image Oct 14, 2025.

Which can edit an existing image?

Takes a reference image as input: FLUX.2 [flex] yes; GPT-5 Image yes.

Can I run any of these on my own hardware?

No open weights. Both are available only through APIs and apps.

04 — Keep comparing

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