Get one Sume video model by id: GET /v1/video-router/models/{id}

You do not have to download the whole video catalog to check one model. Sume's Video Router docs list GET /v1/video-router/models/{model_id} as the single-model lookup, and it returns 404 for an id that does not exist. The full list is at GET /v1/video-router/models, and the OpenRouter-shaped catalog is at GET /v1/videos/models.

What does the lookup return?

The row carries the model's capabilities, such as text-to-video, image-to-video, end frame, references, the supported resolutions, the duration_seconds window and the aspect ratios. It also carries pricing, with the currency, the list basis, the per-second rates and the billable margin and formula, and a constraints list of plain-language rules, such as which fields are rejected.

Which fields should a client read?

Three groups cover most pre-flight checks.

• capabilities.duration_seconds and capabilities.resolutions: reject a request locally before it reaches Sume.
• capabilities.aspect_ratios: an empty list means omit aspect_ratio.
• pricing: the list rate, billable_margin and billable_formula, which turn into the amount Sume will reserve.

Can I see it in a short script?

This Python fetches one model row and prints it, so you can read the fields above for your own pre-flight check.

import os, requests

def check(model_id):
    r = requests.get(
        f"https://api.sume.com/v1/video-router/models/{model_id}",
        headers={"Authorization": f"Bearer {os.environ['SUME_API_KEY']}"},
        timeout=30,
    )
    if r.status_code == 404:
        return f"{model_id}: not a Sume model"
    r.raise_for_status()
    print(r.json())
    return "fetched"

if __name__ == "__main__":
    print(check("wan-3.0"))

What about a missing row?

A 404 means the id is neither a catalog row nor listed in your environment. A row can be absent because its provider is not configured, which is the case for Higgsfield Genjutsu. Treat the lookup, not a hard-coded list, as the source of truth.