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NSFW LoRA guide

Best FLUX NSFW LoRAs — what they unlock on FLUX.1 [dev]

FLUX.1 [dev] has the oldest and largest LoRA library, and on its own it's the most conservative base we test. A single NSFW LoRA changes that — up to a point. Here's what the community uses and exactly how far it went for us.

Get an API keyOpen FLUX.1 Krea Dev LoRA
From
$0.006/ image
Image editing
LoRAs compared
7
Tested on SpicyAPI
2

What we measured on FLUX.1 [dev]

  • No LoRA: underwear stayed on 3 of 3

    Asked for L3 content, FLUX.1 [dev] kept underwear on in all three runs, and two-person scenes showed only an embrace. 27 Sep 2026.

  • Lustly: L3 3 of 3, L4 0 of 3

    With Lustly Uncensored v1 at 1.0 it rendered L3 content every time, but still didn't draw the L4 scene across three seeds. 26 Sep 2026.

  • Flux-Uncensored-V2: link blocked

    Its Hugging Face repo now requires a sign-in, so the job failed with a 401 and wasn't charged. The V1 repo is still public. 26 Sep 2026.

Tests ran on each family's main route with the exact request shape the API sends — SpicyAPI passes LoRA links through unchanged. Outputs stay in our test archive and are not published.

The most-used FLUX NSFW LoRAs

Public download counts from Oct 10, 2026, the strength each author recommends, what we used, and whether the file runs here.

Tested
we ran this exact file
Should run
public link, right base, under 1 GB
Too large
over the 1 GB limit
Link blocked
the repo now requires a sign-in

The most conservative base here on its own: in our runs it kept underwear on 3 of 3 times. An NSFW LoRA is what changes that. FLUX.1 [dev] and many of its LoRAs carry non-commercial licenses.

Best NSFW LoRAs for FLUX.1 [dev]
LoRATypeDownloadsStrengthFileLicenseOn SpicyAPI
Lustly Uncensored v1lustlyaiNSFW all-in-one185.2K303 likes1.0 our test328 MBAny serviceTestedSep 26, 2026
Flux-uncensored (V1)kenerateaiNSFW all-in-one550.9K477 likes—656 MBNot statedShould run
Flux-Uncensored-V2kenerateaiNSFW all-in-one228.5K717 likes—656 MBAny serviceLink blockedSep 26, 2026
NSFW MASTER (FLUX)Shopon_SkpNSFW all-in-one131.8K6.5K likes0.8 author164 MBAny serviceShould run
SCG AnatomysocalguitaristAnatomy fix36.5K1.6K likes0.65–1.2 author187 MBCivitai onlyShould run
Flux RealismXLabs-AIRealism2.9M1.3K likes0.9 our test21 MBNon-commercialTestedSep 26, 2026
UltraRealistic v2DanrisiRealism85.6K3.8K likes0.8–1.0 author2.0 GBAny serviceToo large

Counts come from the public Civitai and Hugging Face APIs on Oct 10, 2026; a Civitai count can combine several versions of one LoRA. LoRAs whose names spell out specific acts or body parts — most of Wan 2.2's top 50 — are left off by name, but they load the same way. Repositories built around real people, or anyone who looks underage, are excluded entirely.

Load a FLUX LoRA

One loras slot, up to three files, on text-to-image. FLUX LoRAs are usually small — 5 to 650 MB — and most expect a trigger word at the start of the prompt.

Hugging Face, Civitai and private link formats
Example request
POST /api/v1/jobs/createTask
Authorization: Bearer $SPICY_API_KEY
Content-Type: application/json

{
  "model": "black-forest-labs/flux-1-krea-dev-lora/text-to-image",
  "input": {
    "prompt": "<trigger word>, candid photo of two adults on a hotel balcony at dusk",
    "loras": [
      {
        "path": "https://civitai.com/api/download/models/<versionId>",
        "scale": 0.8
      },
      {
        "path": "https://huggingface.co/<owner>/<repo>/resolve/main/<file>.safetensors",
        "scale": 0.6
      }
    ]
  }
}

Tips for FLUX NSFW LoRAs

  • One unlock plus one realism

    The common FLUX setup is an NSFW LoRA plus a realism or skin LoRA, two in total. More than that muddies the image.

  • Negative weights won't work

    Some FLUX LoRAs, such as SameFace Fix, are meant to run at a negative weight. Strength here runs from 0 to 4, so they can't be applied as intended.

  • Pick another base for L4

    If the scene needs two adults in an intimate moment, Z-Image Turbo, MiniMax H3 image or Qwen Image with an NSFW LoRA got there in our tests; FLUX didn't.

FLUX LoRA models on SpicyAPI

Guides and tests for these models

FLUX NSFW LoRA questions

NSFW LoRA guides for other models

All LoRA models, the full test log and how-to