Runway Gen-4.5 is 12 credits a second; the same money on Sume
Runway lists gen4.5 at a flat 12 credits per second, $0.60 for 5 seconds. Sume has no Gen-4.5; here is each model's 5-second 720p price beside it.
Runway's pricing page, read 2026-10-01, lists gen4.5 at 12 credits per second with no resolution tiers. At $0.01 per credit, a 5-second clip is $0.60 and a 10-second clip $1.20. Sume does not list Gen-4.5, so the useful question is what the same $0.60 reserves on Sume's models.
Five seconds at 720p costs $0.63 on wan-3.0 and $0.63 on gemini-omni-flash-1.1, both just above $0.60. seedance-2-mini is $0.95 and seedance-2.5 $2.89.
How do Sume's 720p rows line up?
Reserved amounts at list x 1.25, 16:9, 5 seconds, from Sume's pricing code. Gen-4.5 is the $0.60 reference.
| Model | Reserved | Above $0.60 by |
|---|---|---|
seedance-2-mini | $0.95 | $0.35 |
wan-3.0 | $0.63 | $0.03 |
gemini-omni-flash-1.1 | $0.63 | $0.03 |
kling-3 (audio off) | $0.70 | $0.10 |
seedance-2.5 | $2.89 | $2.29 |
What is not comparable?
Quality and prompt adherence. This page compares price only; run the same prompt on both before you decide. Sume's models also differ in length, audio and reference support, which are listed in the video docs.
How do I run the lowest-cost 720p Seedance?
seedance-2-mini at 720p is the lowest-cost Seedance row.
curl -X POST https://api.sume.com/v1/videos \
-H "Authorization: Bearer $SUME_API_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: compare-001" \
-d '{
"model": "seedance-2-mini",
"prompt": "A runner crosses a foggy bridge at dawn, tracking shot",
"duration": 5,
"resolution": "720p",
"aspect_ratio": "16:9"
}'Sources
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Written by Sume