Omni Flash on /v1/videos vs /v1/video-router: the field map

Gemini Omni Flash 1.1 can be called through POST /v1/videos or POST /v1/video-router/generate; both create the same jobs with the same model ID. The difference is the field names: /v1/videos takes frame_images and input_references, while Video Router takes flat fields such as image_url and reference_image_urls. Edit mode, per the docs, is available through the Video Router video_url field.

The map

The Video generation docs call Video Router the legacy wire, and recommend /v1/videos for new integrations. The model vocabulary is the same, so a migration is a path-and-body change.

The same start-frame job on both

Both requests below make an image-to-video clip. They bill the same: 5 s at 720p is 63 cents.

H="Authorization: Bearer $SUME_API_KEY"
curl -X POST https://api.sume.com/v1/videos -H "$H" \
  -H "Content-Type: application/json" -d '{
  "model": "gemini-omni-flash-1.1", "prompt": "Slow push in",
  "frame_images": [{"type": "image_url", "frame_type": "first_frame",
    "image_url": {"url": "https://example.com/a.png"}}],
  "resolution": "720p", "duration": 5, "aspect_ratio": "16:9"}'

curl -X POST https://api.sume.com/v1/video-router/generate -H "$H" \
  -H "Content-Type: application/json" -d '{
  "model": "gemini-omni-flash-1.1", "prompt": "Slow push in",
  "image_url": "https://example.com/a.png", "mode": "async",
  "resolution": "720p", "duration": 5, "aspect_ratio": "16:9"}'

Which to pick

For a new client use /v1/videos: it follows the OpenRouter video wire, supports sume/auto, and gives a poll URL. Use Video Router when you need the edit path with video_url. Idempotency-Key works on both, and a replay returns the original job.

Read the live model list from either route before you hard-code a limit.

The same length at every tier

For reference, a 5-second Omni Flash clip at each resolution. Every price is the seconds times the billable rate, rounded up to a whole cent, as of 2026-10-08.

Limits to remember

These apply to every request on this page, from the Video Router and Video generation docs:

• Length is 3 to 10 whole seconds in generation modes; an edit takes no duration.
• Aspect ratio is 16:9 or 9:16; an edit takes no aspect ratio.
• Native synced audio is always on, and generate_audio: false is rejected.
• There is no bitrate_mode, no reference audio and no seed.
• Billing is the provider list times 1.25 per output second, reserved at submit and shown in usage.cost.