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Parallel Groups

Parallel groups let you run multiple nodes simultaneously during flow execution. This is useful for A/B testing different AI models or approaches.

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Creating a parallel group

  1. Select 2 or more nodes — Hold Shift and click each node, or use box-select mode
  2. Click the Make Parallel button in the toolbar
  3. The selected nodes are grouped and assigned a color indicator
Parallel groups are visually indicated by a colored border. The color palette includes teal, purple, pink, yellow, and blue.

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How parallel groups execute

When the flow runner reaches a parallel group:
  1. All nodes in the group execute simultaneously in the cloud
  2. Results from all nodes are presented side-by-side
  3. You choose which result to keep
  4. The selected result’s data flows to the next step

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Example use case

Generate the same scene with three different video models:
  1. Add three Text-to-Video nodes
  2. Set each to a different engine (e.g., Kling 3.0, Wan 2.6, Veo 3.1)
  3. Select all three and click Make Parallel
  4. When running, you’ll see all three results and can pick the best one
All nodes in a parallel group are charged credits. If you run 3 models in parallel, you pay for all 3 generations.

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Ungrouping

To remove nodes from a parallel group:
  1. Select the grouped nodes
  2. Click Ungroup
The nodes return to sequential execution.