OpenRouter video seed on Sume: no v1 model accepts it
OpenRouter lists seed for deterministic video generation. On Sume no v1 video model accepts seed: each reports seed false and the field is rejected.
You cannot pin a seed on Sume video: no v1 model accepts it, each reports seed: false, and the field is rejected rather than dropped. A client ported from OpenRouter should remove it.
What does OpenRouter say?
Its page lists seed as a parameter for deterministic generation. Sume's request table still lists seed, marked as not guaranteed by all providers, but the differences table below is specific for v1.
What does Sume do?
The differences table states the v1 behavior.
| Item | Sume value |
|---|---|
| seed in the model list | false for every model |
| seed in a request | Rejected |
Where do I check a model?
Read the seed flag in GET /v1/videos/models; the video docs explain the field.
How does the rest of the port look?
Change the base URL to https://api.sume.com/v1/videos, swap the API key, and use bare model ids. The docs say a client written against OpenRouter's docs works after changing the base URL and the API key, apart from the listed differences.
Billing is reserved on submit at provider list times 1.25, and the poll response reports usage.cost as the Sume billable amount. Sending an Idempotency-Key makes retries safe, because a replay returns the original job.
Sources
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