FLUX 1.1 Pro AI Image Generator

The generation of Black Forest Labs' FLUX line that came before FLUX 2, kept available as two entries — the standard model and Ultra.

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When the Set Was Already Built on This Model

FLUX 2 Pro superseded this generation. Saying otherwise would waste your time, so the useful question is when the older model is still the right one.

The answer is continuity. Model generations have different aesthetic defaults, and a series built on FLUX 1.1 Pro does not always transfer cleanly to its successor — the seventh image in a set has to match the first six, and switching engines halfway is how a set stops looking like a set. There is also Ultra, whose less-processed rendering character suits work you intend to grade yourself rather than accept as delivered.

Use FLUX 1.1 Pro to extend something that already exists. Continue an established asset series, match previously approved output, and produce flat, unstylised captures for a colourist to finish.

What Is FLUX 1.1 Pro?

FLUX 1.1 Pro is a text-to-image model from Black Forest Labs, the generation preceding FLUX 2 Pro. Virse carries two entries from it, the standard model and FLUX 1.1 Pro Ultra.

The model is built around three major strengths:

  • Aesthetic continuity with work already produced on this generation
  • A raw rendering mode on Ultra that applies less stylistic processing
  • Prompt compatibility with the rest of the FLUX line

Neither entry is built for editing — FLUX Kontext is the model in the same family designed for that. Briefs written here run unchanged on FLUX 2 Pro, which makes comparing the two generations on your own work a single click rather than a rewrite.

FLUX 1.1 Pro Specs at a Glance

Two Entries

The standard model and FLUX 1.1 Pro Ultra, both in the Virse model list.

Raw Rendering on Ultra

Less stylistic processing applied to the output.

Previous-Generation Aesthetics

The look that existing FLUX 1.1 asset sets were built on.

Prompt Portability

Briefs run unchanged on FLUX 2 Pro and across the FLUX line.

Text-to-Image Only

Editing is handled by FLUX Kontext in the same family.

Same Inputs on Both Entries

Standard and Ultra accept identical briefs.

Key Features of FLUX 1.1 Pro and Ultra

Aesthetic Continuity

The main reason this generation stays available. When six images in a set came from FLUX 1.1 Pro, the seventh should too, and no amount of prompt engineering makes a newer model produce the older one's defaults.

Ultra's Raw Mode

A flatter, less stylised starting point. Useful when the image is heading into a grading pass and you would rather the model had not already made those decisions for you.

Briefs Move Across the Family

A prompt written here runs on FLUX 2 Pro without modification, so testing whether the newer generation suits your work costs nothing but the click.

Two Entries, One Instruction Set

Standard and Ultra take the same brief, which means comparing their output is a like-for-like test rather than two separate experiments.

Pairs With FLUX Kontext

Generate on either entry and edit in Kontext without leaving the family or the canvas.

A Known Quantity

For teams with an established FLUX 1.1 workflow, the value is that nothing about it has changed.

Build with FLUX 1.1 Pro in Virse

Continuity work has a specific problem: you need the new image beside the old ones to know whether it matches, and the old ones usually live somewhere else. Virse solves that by keeping the set together. Import the approved assets onto the canvas, generate the new one next to them, and judge the match by looking rather than by memory.

Match Against the Existing Set

Place previously approved images on the canvas and generate the new one alongside, so drift is visible immediately.

Test the Newer Generation for Free

Run the same brief on FLUX 2 Pro beside it and see whether the difference matters for this particular series.

Access 30+ Creative Models

Move between FLUX 1.1 Pro and 30+ other image and video models without leaving the canvas or rewriting the brief.

Grade Raw Output in Place

Generate on Ultra, then adjust in FLUX Kontext without exporting to a separate editor first.

What Can You Create with FLUX 1.1 Pro?

Series Continuations

Additional images for an asset set already built on this generation.

Flat Captures for Grading

Unstylised output on Ultra, intended to be colour-graded afterwards.

Documentary-Style Imagery

Photographic work where a restrained treatment suits the subject.

Landscape and Environment Plates

Wide scenes used as backgrounds or reference for other work.

Product Shots for Post-Processing

Neutral renders that a retoucher will finish.

Comparison Baselines

Reference output for testing what a newer model does differently.

How to Use FLUX 1.1 Pro in Virse

  1. Compare Against the Current Generation

    Run the brief on FLUX 2 Pro first. If you cannot tell the difference, use the newer model.

  2. Pick an Entry

    The standard model for most work, Ultra when you want a flatter starting point.

  3. Name a Capture Medium

    State how the image was supposedly made — film stock, format, or capture style — rather than listing quality words.

  4. Grade or Edit Afterwards

    Take the result into FLUX Kontext for adjustment rather than regenerating it.

How to Write a FLUX 1.1 Pro Prompt

A useful FLUX 1.1 Pro prompt usually includes four elements:

  • Capture Medium
  • Subject
  • Light
  • Framing

Em vez de escrever

Professional photo of a workshop, highly detailed, sharp focus, 8k.

Escreva

A 35mm film photograph of a woodworking bench, shot from standing height looking down. Hand planes and chisels laid in a row along the back edge, shavings scattered across the surface. Single window light from the left, no fill. Visible grain and slightly muted colour.

FLUX 1.1 Pro Prompt Examples

Documentary Frame

A black and white documentary photograph of an empty municipal swimming pool, drained, seen from the shallow end. Tiled walls with visible repairs, a single door propped open at the far end letting in daylight. High contrast, grain visible, no artificial lighting. Wide shot, horizon line low in the frame.

Raw Capture for Grading

A brushed steel kettle on a plain concrete surface, photographed straight on at product height. A single large source from camera left with a weak bounce opposite, one soft shadow trailing right. Neutral colour, flat contrast, no stylisation and no colour grading applied — a raw capture intended to be graded afterwards. Centred composition with even margins.

Landscape Plate

A wide landscape of moorland under heavy cloud, no buildings and no figures. Late afternoon with the sun behind cloud, light flat and even, distant hills fading into atmospheric haze. Medium format film character, fine grain, muted greens and browns. Horizon in the lower third, sky occupying the rest of the frame.

FLUX 1.1 Pro vs. FLUX 1.1 Pro Ultra

DimensãoFLUX 1.1 ProFLUX 1.1 Pro Ultra
Rendering characterStandard processing appliedRaw mode, less processing
Best forGeneral work on this generationOutput you intend to grade
Instruction setIdentical to UltraIdentical to standard
EditingUse FLUX KontextUse FLUX Kontext
Brief portabilityRuns on Ultra and FLUX 2 ProRuns on standard and FLUX 2 Pro
How to chooseRun one brief through bothRun one brief through both

Tips for Better FLUX 1.1 Pro Results

Name the Medium, Not the Quality

"35mm film" and "medium format" carry information. "8k" and "sharp focus" carry none and take up space in the brief.

Use Ultra When You Plan to Grade

If a colourist is going to touch the image anyway, a flatter starting point gives them more to work with.

Keep the Series Brief Identical

For continuations, reuse the original prompt verbatim and change only the subject. Rewriting the treatment is what breaks a set.

Check Whether You Still Need This Generation

Run the brief on FLUX 2 Pro occasionally. Continuity is a real reason to stay; habit is not.

FLUX 1.1 Pro FAQ

What is FLUX 1.1 Pro?
FLUX 1.1 Pro is a text-to-image model from Black Forest Labs, the generation preceding FLUX 2 Pro. Virse carries it as two entries, the standard model and FLUX 1.1 Pro Ultra.
What is the difference between FLUX 1.1 Pro and Ultra?
Ultra applies less stylistic processing, giving a flatter starting point for work you intend to grade yourself. Both take the same briefs.
Is FLUX 1.1 Pro free, and what does it cost?
FLUX 1.1 Pro is available on Virse's paid plans. Generation draws on a monthly credit allowance rather than a charge per image, and the higher plans make it unmetered within fair use. Current plan rates are listed on the Virse pricing page.
Should I use FLUX 1.1 Pro or FLUX 2 Pro?
FLUX 2 Pro is the current generation and the default for new work. FLUX 1.1 Pro is the right choice when you are extending a set already built on it, or when you prefer its output after comparing them.
Can FLUX 1.1 Pro edit images?
No. FLUX Kontext is the entry in the same family built for editing an existing picture.
Can FLUX 1.1 Pro render text in images?
Not reliably. For readable type, use Nano Banana Pro or Ideogram 4.0.
Do briefs written for FLUX 1.1 Pro work on other FLUX models?
Yes. Prompts move across the FLUX line unchanged, which is what makes comparing generations straightforward.
How do I use FLUX 1.1 Pro in Virse?
Select FLUX 1.1 Pro or FLUX 1.1 Pro Ultra from the model list, write your brief, and generate.

Keep the Set Looking Like a Set

When six images came from this generation, generate the seventh here too — and put it beside the others before you decide.