Decart Lucy 2 and 3 now available in Realtime nodes

We’ve added support for Decart Lucy 2 and Lucy 3 in OTOY Studio’s Realtime nodes. Both models are available today across all Studio plans.

What’s new

Realtime nodes let you stream live generation output directly into your canvas — prompts resolve as you type, reference inputs update on the fly, and changes propagate through downstream nodes without a manual trigger. The workflow is less about discrete generation steps and more about continuous refinement.

Decart’s Lucy models were built for exactly this kind of tight feedback loop. Lucy 2 offers low-latency responses with strong prompt adherence, making it well-suited for iterative exploration where you’re adjusting composition or style on the fly. Lucy 3 extends that with higher output fidelity and better handling of complex scenes — useful once you’ve locked a direction and want to push the detail.

How to use them

Open any canvas workflow and add a Realtime node. In the model selector, you’ll now see Lucy 2 and Lucy 3 listed alongside existing real-time options. Connect your prompt, reference image, or control inputs as usual — the node will stream output using whichever Lucy model you’ve selected.

Both models support the same input types as other Realtime nodes: text prompts, image references, depth maps, and mask inputs. Existing workflows that use Realtime nodes don’t require any changes; you can swap the model in place and the rest of the graph stays intact.

When to use each

Lucy 2 is the right default for early-stage exploration — the latency is low enough that you can scrub through prompt variations in real time and get a clear read on what the model responds to.

Lucy 3 is better suited to the refinement pass: once the composition and style are locked, it produces output detailed enough to use as a strong base for any downstream upscaling or post-processing nodes downstream.

Both are available now. Open Studio and give them a try.