V5 Curated chalkboardExample 01
nai-diffusion-5-curated
NAI Diffusion 5 Curated is a NovelAI image generation API on TTAPI for polished anime illustrations, character art, text rendering, and reference-guided creative workflows.
InputPrompttext
Models4available
FlowAsyncresult URL
Price8 quota/ image
V5 Curated chalkboardExample 01
Six-armed cosmic beingExample 02
Snowfield explorer postcardExample 03
Japanese two-panel comicExample 04Examples
Prompt to image, in context
1girl, cat girl, cat ears, pink hair, short hair, blue eyes, school uniform, holding chalk, chalk, writing, classroom, chalkboard, text, english text. Writing on chalkboard can be seen saying "V5 Curated" along with a heart, right next to the girl's head., location, very aesthetic, masterpiece, no text, teXt: V5 Curated
1girl, blonde hair, short hair, blunt bangs, green scarf, red cardigan, purple eyes, smile
1girl, multiple boys, very aesthetic, best quality, amazing quality, absurdres,, wide shot, medieval, historically accurate, mountainous horizon, wind, spear, An army of soldiers holding spears can be seen standing behind the girl.
year 2025, meta:novel era, drawn, anime character style, happy atmosphere, millipen (medium), painting (medium), papercraft (medium), cinematic lighting, rim lighting, backlighting, dramatic shadows, soft shadows, high contrast, bloom, volumetric lighting, depth of field, very aesthetic, masterpiece, high complexity, depthness, res_mult:2.5x, background is out of this world space A faceless, bald, no ears, ethereal slender being with black galaxy skin with six arms and six hands with five fingers each proudly showing off objects upper left arm raised high displaying a clear glass of water middle left arm extended forward holding a blue ball, lower left arm bent at the elbow holding a gold crown, upper right arm lifted holding an ace of spades card face, forward middle right arm stretched outward holding a orange cube, lower right arm lowered slightly gripping a fresh red apple, , transparent background
1girl, 1other, very aesthetic, best quality, amazing quality, -1::blur, mosaic::, 2::watercolor (medium)::, illustration, -1::realistic::,, light source, the main light source in the image comes from the glowing magic runes on the broadsword, magic, medieval, forest, first person view, dialogue options, text, english text, There is a dialogue box titled "Elf Ranger" next to the girl's head that says "I can't believe a drunken oaf like you was able to wield the Sword of Legends...". On the bottom part of the image are three dialogue options in boxes which say: "(Str 10) It was ez cuz I'm strong af LMAO", "The sword of what?", "What is this place?", teXt: Elf Ranger I can't believe a drunken oaf like you was able to wield the Sword of Legends... (Str 10) It was ez cuz I'm strong af LMAO The sword of what? What is this place?
1girl, blonde hair, short hair, blunt bangs, green scarf, red cardigan, purple eyes, smile, very aesthetic, masterpiece, no text
solo, 1girl, explorer girl, year 2026, very aesthetic, absurdres, best quality, res_mult:3x from side, Snowfield, outdoors, wide shot, solo focus walking, from behind, spread_arms, nature complex background, high complexity huge text, polaroid_photo, handwritten text, Postmark text:Come, see the cliffs and the desert!
2人の女の子、カラー漫画、2コマ、 , very aesthetic, masterpiece, no text, teXt: この画像は全て日本語のプロンプトで書かれています。 V5は日本語も記載ができます。
1girl, blonde hair, short hair, blunt bangs, green scarf, red cardigan, purple eyes, smile, very aesthetic, amazing quality, no text
Capabilities
What you can build with nai-diffusion-5-curated
Prompt driven generation
Submit a concise prompt and get production-ready image output through one TTAPI job.
Core controls only
Keep integration simple with prompt, model, output settings, and callback handling.
Async result flow
Use polling or webhook callbacks so long-running generations do not block your UI.
Ready for product UI
Return NovelAI results that can be displayed, stored, or passed into downstream workflows.
Pricing
Per-action, in quota
Usage is metered in quota by model, action, and output settings.
API request
Headers and submit parameters
Use the endpoint below with your TTAPI key and the request fields shown.
/novelai/text-to-imageSubmit a NovelAI text-to-image task.
Official reference/novelai/image-to-imageTransform a reference image with NovelAI.
Official reference/novelai/fetchRetrieve the generated NovelAI task result.
Official referenceHeaders
TT-API-KEYstringrequiredYour TTAPI API key.
Content-TypestringrequiredUse application/json.
Body
promptstringrequiredPositive illustration prompt.
modelenumrequirednai-diffusion-5-full, nai-diffusion-5-curated, nai-diffusion-4-5-full, or nai-diffusion-4-5-curated. Defaults to nai-diffusion-5-curated.
nintegeroptionalNumber of images to generate, from 1 to 4. Defaults to 1.
widthintegeroptionalOutput width in pixels. Defaults to 1024.
heightintegeroptionalOutput height in pixels. Defaults to 1024.
seedstringoptionalSeed used to reproduce or vary a generation.
stepsintegeroptionalDiffusion step count. Defaults to 23.
scalenumberoptionalPrompt guidance scale. Defaults to 5.
negative_promptstringoptionalElements and qualities to avoid.
quality_togglebooleanoptionalEnable the documented quality preset. Defaults to true.
samplerenumoptionalEuler Ancestral, Euler, DPM++ 2S Ancestral, DPM++ 2M SDE, DPM++ 2M, or DPM++ SDE. Defaults to Euler Ancestral.
noise_scheduleenumoptionalkarras, exponential, or polyexponential. Defaults to karras.
character_promptsobject[]optionalCharacter prompt and position definitions.
vibe_transferobject[]optionalAtmosphere reference images and strengths.
character_referenceobject[]optionalCharacter and style reference definitions.
hook_urlstringoptionalCallback URL for job completion.
Integrate
From key to first result
Copy the resolved endpoint, authentication headers, and request body for this model.
curl --request POST \
--url https://api.ttapi.io/novelai/text-to-image \
--header 'TT-API-KEY: $TTAPI_KEY' \
--header 'Content-Type: application/json' \
--data '{"prompt":"anime character portrait, detailed eyes","model":"nai-diffusion-5-curated","n":1,"width":1024,"height":1024,"steps":23,"scale":5,"quality_toggle":true,"sampler":"Euler Ancestral","noise_schedule":"karras","hook_url":"https://example.com/webhooks/novelai"}'
