Grok Imagine Video 1.5 on Sume: one per-second rate for 480p and 720p

In Sume's catalog, grok-imagine-video-1.5 has a single per-second list price that does not change with resolution: the repo constant is $0.01 per second for both 480p and 720p, which is $0.0125 per second at the catalog's list times 1.25 rule, before cent rounding. Treat the Sume figure as the repo's recorded list rate and read the live price from the catalog endpoint before you plan a budget.

Two facts about this row matter more than the exact cent: it is image-to-video only, and it has no aspect ratio field. Both come from Sume's model card and catalog, read 2026-10-03.

What the Sume row lists

Because the list rate is flat per second, the resolution choice here changes quality and file size but not the rate. A 10 second clip has the same list amount at 480p and 720p.

Why read the live rate

The repo records its own list source for this row, dated 2026-06-29, and applies the catalog multiplier on top. Vendor pricing can change after that date, so the endpoint, not a blog page, is the number to budget with.

Check the live rate in a few lines

The catalog has a per-model route, GET /v1/video-router/models/{model_id}. This script prints what Sume returns for the row, including its pricing block.

import json
import os

import requests


def main():
    key = os.environ["SUME_API_KEY"]
    r = requests.get(
        "https://api.sume.com/v1/video-router/models/grok-imagine-video-1.5",
        headers={"Authorization": f"Bearer {key}"},
        timeout=30,
    )
    r.raise_for_status()
    print(json.dumps(r.json(), indent=2))


if __name__ == "__main__":
    main()

When this row is the right one

If you need text-to-video, native audio or an end frame, pick a different row; the Video Router docs list capabilities per model.

• You already have a still and want a short motion version of it.
• You do not need sound, end frames or text-only generation.
• Your clip is 4 to 15 seconds and 480p or 720p is enough.
• You do not need to control the aspect ratio; the row has no such field.