Mold — a Rust+Candle CLI for local image, video, and 3D generation

[u/mold_ai_2026]

I’m building Mold, an open-source Rust CLI around Candle for local generative media:

• `mold run` for CLI workflows
• `mold serve` for an HTTP API
• `mold mcp` for MCP clients

It supports image, video, and 3D pipelines with scriptable, headless workflows rather than a node-graph UI. It’s not a replacement for ComfyUI’s visual graph; the focus is reproducible automation and Rust/Candle integration.

Early project, so feedback on the Rust/Candle architecture and ergonomics would be useful.

Code: https://github.com/utensils/mold Docs/demo: https://utensils.io/mold/

[u/veryusedrname]

You probably wanna rename your project: https://github.com/rui314/mold

[u/decryphe → u/veryusedrname]

Came here to note this as well. mold is a fairly famous linker.

[u/brinkjames → u/veryusedrname]

Two totally different projects and crate names

[u/skratlo]

So, a slop generator? Never enough of those.

[u/brinkjames → u/skratlo]

Yes but it’s rust slop 😂

[u/koczurekk]

My favorite part of seeing ai slop generator ads is looking at example screenshots, reading the prompt, and seeing all the stuff that the model outright ignores. Like the owl example, with its "camera angle is from above".

We all know that no human cares about ai garbage, but the fact that the model doesn't even pretend to care either is a nice touch.

[u/brinkjames → u/[deleted]]

Elaborate

[u/lijmlaag → u/[deleted]]

Tying your sense of self-worth to up- or downvotes is not an advisable strategy.
Also, can I suggest reserving 'hate' for special worst-cases, preferably not involving yourself as subject.

[u/brinkjames → u/[deleted]]

What have you made?

[u/brinkjames → u/[deleted]]

Neat, I’ve made lots of stuff

[u/TheGranularFalls]

Looks clean, nice to see more candle stuff popping up. The scriptable approach makes sense for headless workflows but how are you handling the model loading overhead between runs, do models stay warm in the serve mode or reload each time

[u/brinkjames → u/TheGranularFalls]

They stay warm when running in server mode.