AI3D API v2 model
hunyuan3d-v3-sketch
**Retired on 2026-11-01. Do not use.** fal no longer serves `fal-ai/hunyuan3d-v3/sketch-to-3d`, so this model was removed from `GET /v2/models` and `GET /v2/billing/prices`, and `POST /v2/jobs` rejects it with HTTP 400. The rest of this guide is kept only as a record of the former interface. For image input use `hunyuan3d-v3` (see `/v2/models`).
Implementation guide
Use the model-specific llm.txt for request inputs, defaults, provider notes, and a complete AI3D job example. Copy it for your coding agent or open the raw text.