pip install novelai-sdk

NOVELAI_API_KEY=pst-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

# Windows (PowerShell)
$env:NOVELAI_API_KEY = "pst-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"

# Linux/Mac
export NOVELAI_API_KEY="pst-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"

from novelai import NovelAI
from novelai.types import GenerateImageParams

client = NovelAI()

params = GenerateImageParams(
    prompt="masterpiece, best quality, 1girl, nude, nsfw",
    model="nai-diffusion-4-5-full",
    size=(768, 512),  # 横長
)

images = client.image.generate(params)
images[0].save("output.png")

[品質タグ], [キャラ特徴], [表情], [体位・ポーズ], [背景], [スタイル], nsfw

masterpiece, best quality, ultra detailed

soft lighting, soft skin, beautiful skin, detailed skin

(heart-shaped pupils:1.4), (ahegao:1.2), open mouth, tongue out, blush, sweat, tears

from novelai import NovelAI
from novelai.types import CharacterReference, GenerateImageParams

client = NovelAI()

# キャラ参照画像を設定
character_references = [
    CharacterReference(
        image="./my_character.png",  # 参照画像のパス
        type="character",
        fidelity=1.0,  # 忠実度 (0.0〜1.0)
    )
]

params = GenerateImageParams(
    prompt="masterpiece, best quality, 1girl, nude, sex, nsfw",
    model="nai-diffusion-4-5-full",
    size=(768, 512),
    character_references=character_references,
)

images = client.image.generate(params)
images[0].save("output.png")

#!/usr/bin/env python3
"""
NovelAI エロ画像生成サンプル
"""

from novelai import NovelAI
from novelai.types import CharacterReference, GenerateImageParams

def generate_sex_scene(
    character_image: str = None,
    position: str = "missionary",
    output: str = "output.png"
):
    client = NovelAI()

    # 体位テンプレート
    positions = {
        "missionary": "(full body:1.3), (solo focus:1.2), 1girl, (sex:1.4), (vaginal:1.3), (missionary position:1.3), (lying on back:1.2), (spread legs:1.3), (penis:1.2)",
        "doggystyle": "(full body:1.3), (solo focus:1.2), 1girl, (sex from behind:1.3), (doggystyle:1.2), (on all fours:1.2), (ass:1.2), (penis:1.2)",
        "cowgirl": "(full body:1.3), (solo focus:1.2), 1girl, (sex:1.4), (cowgirl position:1.3), (straddling:1.2), (girl on top:1.2), (penis:1.2)",
        "fellatio": "(fellatio:1.4), (licking penis:1.3), tongue out, (pov:1.2), looking up at viewer, blush, lewd face, saliva",
    }

    # プロンプト構築
    base = "masterpiece, best quality, ultra detailed"
    style = "soft lighting, soft skin, beautiful skin, detailed skin"
    expression = "(ahegao:1.2), (heart-shaped pupils:1.3), open mouth, blush, sweat, tears"
    position_tags = positions.get(position, positions["missionary"])

    prompt = f"{base}, {position_tags}, {expression}, {style}, nsfw"

    # Character Reference設定
    character_references = None
    if character_image:
        character_references = [
            CharacterReference(
                image=character_image,
                type="character",
                fidelity=1.0,
            )
        ]

    # 生成パラメータ
    params = GenerateImageParams(
        prompt=prompt,
        model="nai-diffusion-4-5-full",
        size=(768, 512),
        steps=28,
        scale=5.0,
        character_references=character_references,
    )

    print(f"Generating {position} scene...")
    images = client.image.generate(params)

    if images:
        images[0].save(output)
        print(f"Saved: {output}")
    else:
        print("Error: No images generated")


if __name__ == "__main__":
    # 基本的な使い方
    generate_sex_scene(position="missionary", output="missionary.png")

    # Character Reference付き
    # generate_sex_scene(
    #     character_image="./my_character.png",
    #     position="cowgirl",
    #     output="cowgirl.png"
    # )