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AI art and video API for adult games

For visual novels, dating sims, RPGs and interactive fiction · Commercial use permitted · Batch-friendly pricing

Adult games burn through art: character sheets, expression sets, CG scenes, backgrounds, item icons and — increasingly — animated cutscenes. 18models gives studios one API key for Wan 2.7 image (up to 4K, 12-panel grids, inpainting), Qwen-Image 3.0 editing, Z-Image Turbo for volume, and Wan 2.7 / HappyHorse / Wan 3.0 video for cutscenes, with NSFW output permitted in writing and commercial use allowed.

Asset pipeline by model

AssetModelBase priceWhy
Character sheet (poses, expressions, outfits)wan2.7-image-grid-t2i-uncensored / grid-i2i$0.034 / panel StandardUp to 12 consistent panels per request
CG scenes at print qualitywan2.7-image-t2i-uncensored Pro$0.086 / image1K / 2K / 4K, same price at every resolution
Variations of an existing CG (outfit, time of day, expression)qwen-image3-edit-uncensored$0.035 / imageInstruction edits with 1–3 references, up to 6 outputs
Fix a region (hands, background object)wan2.7-image-inpaint-uncensored$0.034 / imageBounding-box guided, up to 2 boxes per image
Backgrounds, icons, filler at volumez-image-turbo-uncensored$0.017 / image1,000 images ≈ $17
Animated cutscene from a CGhappyhorse-1.1-i2v-uncensored / wan2.7-i2v-firstframe-uncensoredfrom $0.048 / s · $0.113 / s3–15 s; first frame = your CG
Cutscene with consistent castwan2.7-r2v-multiple-uncensored$0.113 / s (720p)Up to 5 character references
Longer scripted scenewan3.0-video-t2v-uncensoredfrom $0.058 / s2–30 s, prompts up to 20,000 characters

Workflow that scales

  1. Lock the cast first. For each character: one Pro portrait → one 12-panel grid → pick 3–5 panels as canonical references. Store them; every later asset points back to them.
  2. Batch by scene. Generate variations with count (up to 4–6 per request on image models) and a fixed seed when you want reproducibility.
  3. Automate QA. Poll tasks, download result_urls into your asset repo, and re-run failures — failed tasks are refunded automatically, so retries cost nothing extra.
  4. Cutscenes last. Feed the approved CG into image-to-video, or the character references into r2v; keep clips 3–8 s for size, chain with continuation mode when you need longer shots.

Licensing and rules

Outputs are yours to ship in commercial products under our Terms of Service. The content policy applies to game assets exactly as to anything else: fictional adults only; characters must be unambiguously adult (ambiguity is resolved against generation); no real people. Read it once: /content-policy.

Related

  • Wan 2.7 image API · Qwen-Image 3.0 · Z-Image Turbo · HappyHorse video
  • Character consistency
  • Pricing · API docs

Prices are USD base list prices from /pricing; the effective price for your key is returned by GET /ent/v2/prices. NSFW output is permitted under the Content Policy — fictional adults only, minors and real people prohibited and screened.

FAQ

Can I use AI-generated NSFW assets commercially in my game?

Yes. Commercial use of outputs in your own products is permitted under the 18models Terms of Service and content policy (fictional adults only; minors in any style are banned absolutely).

How do I generate a consistent character sheet for a game?

Wan 2.7 grid-from-text or grid-from-image returns up to 12 consistent panels per request (poses, expressions, outfits); use one panel as the reference for Qwen-Image or Wan 2.7 image edits and for reference-to-video cutscenes.

What does a batch of 1,000 game images cost?

About $17 on Z-Image Turbo, $35 on Qwen-Image 3.0 Standard or Wan 2.7 image Standard, $86 on Pro tiers — base list prices, USD, prepaid.

Can I generate animated cutscenes?

Yes: HappyHorse from $0.048/s (480p) or Wan 2.7 at $0.113/s (720p), 3–15 s clips, image-to-video from your CG or reference-to-video from character sheets; Wan 3.0 for clips up to 30 s.

Build on a provider that says yes in writing. One API key, 34 models, USD prices, and a content policy you can quote.
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