CUDA on Linux. Metal on macOS. FLUX, SD3.5, SDXL, SD 1.5, Z-Image, Flux.2 Klein & more — no cloud, no Python, no fuss.
mold run "a cat" — that's it. Auto-downloads the model, generates an image, saves to disk.
FLUX.1, SDXL, SD 1.5, SD 3.5, Z-Image, Flux.2 Klein, Qwen-Image, and Wuerstchen v2. Quantized variants fit any GPU.
Single binary built on candle. NVIDIA GPUs on Linux via CUDA, Apple Silicon on macOS via Metal. No Python, no libtorch, no ONNX.
Run mold serve on a GPU host, generate from anywhere. REST API with SSE streaming for real-time progress.
Built-in Discord bot with /generate, /expand, /models, and /status slash commands. Run standalone or embedded in the server.
Transform existing images, inpaint regions with masks, guide generation with ControlNet conditioning. LoRA adapters for FLUX.
Docker images for RunPod and any NVIDIA host. Nix flake, systemd service, NixOS module included.
Local LLM expands short prompts into detailed descriptions. Auto-downloads Qwen3-1.7B, dropped before diffusion runs.
Use mold from OpenClaw as a workspace skill while your GPU server runs elsewhere. Point `MOLD_HOST` at the server and generate from agent flows.
# Install
curl -fsSL https://raw.githubusercontent.com/utensils/mold/main/install.sh | sh
# Generate
mold run "a cat riding a motorcycle through neon-lit streets"
# Pick a model
mold run flux-dev:q4 "a sunset over mountains"
# Pipe to an image viewer
mold run "neon cityscape" | viu -All images generated locally with mold — click any to see the model and prompt.
flux2-klein:bf16 — 4 steps "a majestic owl perched on a mossy branch in a moonlit forest"
flux-schnell:q8 — 4 steps, seed 42 "A majestic snow leopard perched on a Himalayan cliff at golden hour, cinematic lighting, photorealistic"
flux-dev:q4 — 25 steps, seed 1337 "A cozy Japanese tea house interior with warm lantern light, steam rising from ceramic cups, watercolor style"
z-image-turbo:q8 — 9 steps, seed 777 "An astronaut floating through a bioluminescent underwater cave, reflections on the helmet visor, science fiction art"
sd3.5-large:q8 — 28 steps, seed 2024 "A steampunk clocktower in a Victorian city at sunset, gears and cogs visible through glass walls, dramatic clouds"
sdxl-turbo:fp16 — 4 steps, seed 88 "A vibrant street food market in Bangkok at night, neon signs, steam from woks, bustling crowd"
dreamshaper-v8:fp16 (SD 1.5) — 25 steps, seed 555 "A fantasy castle perched on floating islands above clouds, magical waterfalls, ethereal glow"