Veo 3.1 Lite at half of Fast vs an Omni Flash draft

Google's blog says Veo 3.1 Lite costs less than 50% of Veo 3.1 Fast at the same speed. On Sume you do not pick a Veo id: the Google video model in the catalog is gemini-omni-flash-1.1, so the comparison is between two different models, and the right price check is the Sume catalog.

What Google says about Lite

The Google blog post from Mar 31, 2026 describes Veo 3.1 Lite at under half the cost of Veo 3.1 Fast at the same speed, with 720p and 1080p, clips of 4, 6 or 8 seconds, and 16:9 or 9:16.

What Sume documents for Omni Flash

gemini-omni-flash-1.1 is one catalog id that Sume routes by the shape of the request: prompt for text-to-video, image_url for image-to-video, reference_image_urls for reference-to-video, and video_url for an edit. Billing is provider list times 1.25 per output second by resolution.

A draft-first plan

A lower resolution is the cheapest way to test a prompt. 360p is the lowest listed resolution on Omni Flash. Submit a short draft, review it, and only then spend on 1080p or 4K.

curl -X POST https://api.sume.com/v1/video-router/generate \
  -H "Authorization: Bearer $SUME_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: omni-draft-001" \
  -d '{
    "model": "gemini-omni-flash-1.1",
    "prompt": "A slow dolly toward a ceramic mug on a wooden table, morning light",
    "resolution": "360p",
    "duration": 4,
    "aspect_ratio": "16:9",
    "mode": "async"
  }'

Takeaway

Do not carry Veo's Lite-versus-Fast ratio over to Sume. Read capabilities and pricing from GET /v1/video-router/models, compute cost for your length and resolution, and note that the two products differ in clip lengths and tiers.