Is there a content filter on NSFW images?

No. The prompt and the result are not reviewed, and none of our test requests, from Mild to Maximum, was refused. What the model draws is limited by the model: most levels work, the Very strong level does not.

Does it render every intensity level?

Not every one. In our tests it delivered every other level, but a Very strong request came back implied rather than shown, and male subjects were rough. In those scenes it sometimes added clothing you did not ask for.

How does it compare with the other FLUX.2 models?

FLUX.2 [dev] is the open-weights model of the family, and unlike the reviewed models it has no moderation layer, so it does not refuse requests or swap in a toned-down version. The reviewed models such as [pro] and [max] stay more consistent on the highest-quality renders.

Can it write text inside the image?

Yes, short text works well: in our tests quoted signs came back spelled as written. Put the exact words in quotation marks and say where they go. Long paragraphs may still contain mistakes.

Yes, as a strong hint. A code such as #FF4F8B next to the neon sign tinted the room magenta. It is not an exact colour match.

How many reference images can I use?

One to three in Edit mode, in the order your prompt mentions them. Say "the woman from image 1" and "the man from image 2" when you combine people.

What do 1k and 2k mean?

1k is about one megapixel, for example 1024 x 1024. 2k is 2048 pixels on the long side, for example 2048 x 1152 at 16:9. The price is the same at 1k and 2k, in Text to Image and in Edit.

FLUX.2 Dev API: Uncensored NSFW Images and Edits

black-forest-labs/flux-2-dev/text-to-image

FLUX.2 [dev] text-to-image from Black Forest Labs' open-weights model. It writes readable text inside the picture, follows hex colour codes, and renders at about one megapixel or up to 2048 pixels on the long side, in nine aspect ratios.

From $0.012/image

Run model View API

Input

Text to image

Prompt477/5000

Aspect ratio

Resolutionaffects price

Seed

Safety checkerOff

SpicyAPI does not run a safety checker on this model. Your prompt and media go to the model as written, and the model itself decides what comes back.

Checking your account before enabling submission and pricing.

Output

Ready for a new run

Example result

Animate

Edit

Split into layers

{
  "model": "black-forest-labs/flux-2-dev/text-to-image",
  "input": {
    "aspect_ratio": "2:3",
    "resolution": "1k",
    "seed": 7714,
    "prompt": "Photograph of a woman in her mid-thirties with damp, tousled auburn hair sitting on the edge of a motel bed at night, wearing a champagne silk slip dress with one thin strap slipped off her shoulder, legs crossed, looking toward the camera with a calm, knowing expression. Through the window behind her, a pink neon sign reads \"VACANCY\". The sign washes the room in #FF4F8B magenta mixed with cool #3AA7FF blue. 35mm film photo, visible grain, slightly soft focus at the edges."
  }
}

Introduction

FLUX.2 Dev Text to image is Black Forest Labs' FLUX.2 [dev], a 32-billion-parameter open-weights model released on 25 November 2025, generating an image from a written prompt. It renders legible text inside the picture, follows hex colour codes, and returns about one megapixel at 1k or up to 2048 pixels on the long side at 2k, in nine aspect ratios. No filter is applied to the prompt or the result.

Choose a mode by starting material

What you have	Mode
a written brief	FLUX.2 Dev Text to image
one to three images to change or combine	FLUX.2 Dev Image Edit

Key features & highlights

Text that comes back spelled

Short quoted text on signs, neon and labels rendered correctly in our tests: a "CLOSED" sign on a shop door and a "VACANCY" neon sign were both spelled as written.

Hex colour control

Write a code such as #FF4F8B or #3AA7FF next to the light or object you describe. It is a strong hint, so it suits mood and lighting more than exact brand matching.

No filter, with the model's own limits

Nothing is reviewed or refused. In our tests the model delivered the Mild, Moderate, Strong and Maximum levels in every run, but the Very strong level came back toned down, so it is not the model for that level.

Request parameters

Request parameters for FLUX.2 Dev · Text to Image
Parameter	Required	Description
`prompt`	Yes	Up to 5,000 characters. Describe subject, clothing, setting, light and camera look in full sentences. at least 1 characters · at most 5000 characters
`aspect_ratio`	No	Nine shapes from 21:9 to 9:21; 1:1 is the default. At 1k they are about one megapixel, for example 1344 x 768 at 16:9. `1:1` · `16:9` · `9:16` · `4:3` · `3:4` · `3:2` · `2:3` · `21:9` · `9:21` · Default: `1:1`
`resolution`	No	1k (default) is about one megapixel; 2k reaches 2048 pixels on the long side. Both tiers cost the same. `1k` · `2k` · Default: `1k`
`seed`	No	A whole number from 0 to 2,147,483,647. Keep it fixed while you change one part of the prompt, so the results are easy to compare. `≥ 0` · `≤ 2147483647`

Pricing

Billed per image: 1k and 2k cost the same, and the aspect ratio does not change the price. Failed requests are not charged.

Pricing
Specification	Price
`1k`	$0.0116 / image
`2k`	$0.0116 / image

Use cases

Portraits and lifestyle stills

Film-style photographs of one or two people in a believable setting, for mood boards, covers and character references.

Signs, posters and labels

Scenes where a few words must be readable, such as shop windows, neon signs, packaging and posters.

Platforms without moderation

For services whose users expect no moderation on the prompt, with everything from Mild to Maximum in range apart from the Very strong level.

Explore key use-case tutorials

Prompt guide & pro tips

Write it like a photo brief

Subject, clothing, place, light and film look, as full sentences. FLUX.2 follows long prompts well.

Quote the words, place the sign

Put the exact text in quotation marks and say where it sits. Keep it to a few words; long paragraphs can still contain errors.

Name the light and its colour

"Warm #E9A23B tungsten lamps" or "pink neon washing the room in #FF4F8B" gives the scene a clear colour direction.

Render at 2k for the final

Try ideas at 1k, then render the one you like at 2k with the same seed and compare. The price is the same at both tiers.

Say what the people wear

If you want a particular outfit, describe it. In our tests the model followed what the prompt said about clothing.

API quick start

# Generate the idempotency key once; reuse it when retrying after a lost response.
export SPICY_IDEMPOTENCY_KEY="${SPICY_IDEMPOTENCY_KEY:-$(uuidgen)}"
curl -X POST https://api.spicyapi.ai/api/v1/jobs/createTask \
  -H "Authorization: Bearer $SPICY_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $SPICY_IDEMPOTENCY_KEY" \
  -d '{
  "model": "black-forest-labs/flux-2-dev/text-to-image",
  "input": {
    "prompt": "A ceramic teapot on a linen cloth, soft window light, muted palette",
    "resolution": "1k",
    "aspect_ratio": "1:1"
  }
}'

# Copy data.taskId from the response into TASK_ID, then poll the status.
TASK_ID="TASK_ID_FROM_RESPONSE"
curl "https://api.spicyapi.ai/api/v1/jobs/recordInfo?taskId=$TASK_ID" \
  -H "Authorization: Bearer $SPICY_API_KEY"

See the API reference for authentication, the complete schema, polling, and error handling.

Missing the model you need?

Tell us what to add and where you would use it. Requests go to the people who decide what gets onboarded next.

BLACK FOREST LABS OPEN-WEIGHTS IMAGE MODEL

FLUX.2 Dev API at a glance

FLUX.2 [dev]: the open-weights FLUX.2 model, photoreal portraits and readable text, with no content filter.

Parameters: 32B; Black Forest Labs' FLUX.2 [dev], released with open weights on 25 November 2025.
Reference images: 3; Edit mode takes one to three source images and can combine people from separate photos.
Long side at 2k: 2048 px; 1k is about one megapixel; 2k reaches 2048 pixels on the long side.
Aspect ratios: 9; From 21:9 to 9:21, with the same price at every ratio.
Colour codes: Hex; Write a value such as #E9A23B in the prompt and the model steers the colour of light and objects towards it.
Content filter: None; Uncensored: no review of the prompt or the result, and no refusals in our tests.

Results

What you can make with FLUX.2 Dev

Text and colour
A sign that reads CLOSED
Two women in a record store after hours, a quoted sign on the glass door and a warm #E9A23B lamp glow. The sign is spelled correctly and the light follows the colour code.
Text to image, 2k, 3:2.
Portraits
Neon from the window
A woman in a motel room at night, a "VACANCY" sign outside, magenta and blue light mixed across the room. It comes back with visible film grain.
Text to image, 2k, 2:3.
Editing
Same man, a different night
A buttoned-up office portrait becomes a late hotel bar with the shirt open and the tie loosened. The face and beard stay, the room and mood change.
Edit, one source, auto shape.
Two references
Two portraits, one dance
A woman from one photo and a man from another, slow-dancing in a candlelit cellar. Both faces stay close to their sources.
Edit, two sources, 2k, 3:2.

Content test

Is FLUX.2 Dev uncensored? What we tested

We ran each level on our live setup and checked every clip frame by frame. A pass means the content was actually on screen, not just that the request went through.

Content levels tested on FLUX.2 Dev, by mode
Level	Text to image	Image editing
MildThe lightest prompts in the test	RendersTested Oct 8, 2026	RendersTested Oct 8, 2026
ModerateWhere filtered models start to refuse	RendersTested Oct 8, 2026	Not tested yet
StrongThe middle of the scale	RendersTested Oct 8, 2026	RendersTested Oct 8, 2026
Very strongWhere most models start to hold back	Not tested yet	Not tested yet
MaximumThe top of the scale	RendersTested Oct 8, 2026	RendersTested Oct 8, 2026

Renders: on screen as written. Softened: generated, but milder than what was written. Refused: rejected. Not tested yet: we have not run that level on that mode.

How each mode behaves

All modes: No filter is applied and requests are not refused. The limits come from the model itself: in our tests text to image delivered the Mild, Moderate, Strong and Maximum levels in every run, but the Very strong level came back toned down, implied rather than shown, and male subjects came out rough.
Text to image: One image per request, up to 2048 pixels on the long side. There is no negative prompt, no step count and no guidance control, and the result is a JPEG. Long passages of text can still slip, so keep it to a few words.
Image editing: One to three source images of up to 10 MB each. Faces carry over well from clear, front-facing photos but can drift on small or tilted ones, and a second person's likeness is a little less stable than the first.

Use cases

What to build with the FLUX.2 Dev API

Portraits and lifestyle scenes
Warm, grainy film-style stills of one or two people in a believable place: record stores, motel rooms, sailboat decks. Faces, fabric and light read as photographs.
Posters, signs and labels
Short pieces of text such as shop signs, neon lettering and labels render legibly, so mock-ups need less retouching.
Outfit, scene and mood changes
Send a portrait and ask for a different outfit, setting and lighting while the person stays recognisable.
Bringing two people into one frame
Give it two separate portraits and ask for a shared scene. It keeps both faces close to the photos.
Unfiltered work
There is no filter on the prompt or on the result, which suits platforms whose users expect that freedom. In our tests it delivered every intensity level except Very strong, which came back toned down.

Prompts

FLUX.2 Dev prompt examples you can copy

Paste one into the playground as it is, then change one thing at a time.

Text to image
Two women, a quoted sign and warm lamps
Photograph of two women in their late thirties in a small vintage record store after closing time. One, with a cropped black pixie cut, a few grey strands and gold hoop earrings, sits on the wooden counter wearing a loose oatmeal cardigan slipping off one shoulder over a thin black camisole and high-waisted jeans; the other, a Black woman with a short natural afro and laugh lines, stands close beside her in a fitted burgundy turtleneck. They hold a vinyl record sleeve between them, foreheads almost touching, laughing softly. Crates of records, warm #E9A23B tungsten lamps, a small sign hanging on the glass door reads "CLOSED". 35mm film photo, soft grain, shallow depth of field.
Why it works. Clothing, hair and the shared record are spelled out, the sign text is in quotes and the lamp colour is a hex code. The sign reads CLOSED and the warm glow follows the colour.
Try this prompt
Text to image
Neon light in a motel room
Photograph of a woman in her mid-thirties with damp, tousled auburn hair sitting on the edge of a motel bed at night, wearing a champagne silk slip dress with one thin strap slipped off her shoulder, legs crossed, looking toward the camera with a calm, knowing expression. Through the window behind her, a pink neon sign reads "VACANCY". The sign washes the room in #FF4F8B magenta mixed with cool #3AA7FF blue. 35mm film photo, visible grain, slightly soft focus at the edges.
Why it works. Two hex colours for the light, a quoted sign and a film look. The room takes on the magenta and blue mix and the sign is spelled correctly.
Try this prompt
Text to image
Two men on a sailboat deck
Photograph of two men in their late thirties on the teak deck of a sailboat at golden hour. One, shirtless and sun-tanned with a short dark beard, sits on the deck coiling a rope; the other, in an unbuttoned white linen shirt and navy swim shorts, leans against the mast laughing and holds out a plain brown glass bottle to him. Low warm sun flaring behind the sail, sea in #2E6F95, light sea spray, candid documentary style, 35mm.
Why it works. A candid documentary scene: low sun, sea colour and what each man is doing. Both read as relaxed and natural in the golden light.
Try this prompt
Image editing
The same man in a hotel bar
Same man, same face and beard, alone in the frame. It is now late at night after work: his suit jacket is gone, his navy tie hangs loose and untied around his neck, and his white shirt is fully unbuttoned and hanging open over his bare chest, sleeves rolled to the elbows. Replace the bright office with a dim hotel bar of dark wood and warm #D98E04 amber lamps. He leans one elbow on the bar holding a glass of whiskey and gives a slow, confident smile toward the camera. Realistic photograph, shallow depth of field. No other people.
Why it works. One portrait, and the prompt lists what changes in the clothes and the room. The face and beard stay while the whole mood shifts.
This mode starts from your own image: add it in the playground before you run.
Try this prompt
Image editing
Two separate portraits, one scene
Combine the two people into one scene: the woman from image 1 and the man from image 2 slow-dancing close together in an old stone wine cellar lit by candles. Keep both faces exactly as in the photos, with the same age, features and fine lines; her face is turned toward the camera, resting against his shoulder. She now wears a midnight-blue silk dress with thin straps and an open back, her hair still in a low bun with small gold hoop earrings; he wears a white dress shirt open at the collar with the sleeves rolled up, and dark trousers. His hand rests on her bare lower back. Warm #F4A259 candlelight, deep shadows, 35mm film look.
Why it works. Each person is named by image number and the faces are marked as fixed. Both stay recognisable in the new candlelit setting.
This mode starts from your own image: add it in the playground before you run.
Try this prompt

Pricing

FLUX.2 Dev API pricing

One image starts at $0.012 at 1K and $0.012 at 2K.

The playground shows the exact price for your settings before you run. Failed or timed-out tasks are usually not charged. Some models charge for content refusals as stated on their model page; check those billing terms before submitting.

See every price tier

Get started

How to use the FLUX.2 Dev API in three steps

Step 1
Write it like a photo brief
Name the subject and what they wear, the place, the light and the film or lens look in full sentences. FLUX.2 follows long, specific prompts well.
Step 2
Quote any text you want in the picture
Put the exact words in quotation marks and say where they sit, such as a sign on a glass door. Our "CLOSED" and "VACANCY" signs came back spelled correctly.
Step 3
Colour the light with hex codes
Add a code like #FF4F8B to the lamp or the neon you describe. It is a strong hint for the colour of that element, not a guarantee of an exact shade.

Open the playground Get an API key

Parameter reference and code samples are in the API and Readme tabs at the top of this page.

Why SpicyAPI

Why run FLUX.2 Dev on SpicyAPI

No filter from us
We add no content filter of our own. What the model renders is what you get back.
Tested, not guessed
Content labels come from real generations we ran and checked, with the test date on the page.
Pay per result, in dollars
No subscription and no credits. Failed or timed-out tasks are usually not charged. Some models charge for content refusals as stated on their model page; check those billing terms before submitting.
One key for every model
One API key and balance cover image, video, audio and chat models, so you can explore more models from the same account.

FAQ

FLUX.2 Dev API FAQ

About FLUX.2 Dev

FLUX.2 [dev] is the open-weights FLUX.2 model: photographic portraits, readable text, hex colour control and up to three reference images, in nine shapes up to 2048 pixels. There is no filter and no refusal. In our tests it delivered every level as asked except Very strong, which it toned down.