Every video model quotes a per-second rate. Almost none of them quote the same configuration: one is 720p without audio, another is 1080p with native audio, a third bills per token and hides the conversion. Ask "which is cheaper" and you get three numbers that cannot be compared.

So I converted all of them to one unit: dollars per minute of finished output .

The spread is bigger than I expected. The same 8 seconds of video costs $0.34 on the cheapest model and $5.44 on the most expensive — a 16x difference, before retries.

The table, per minute

Model Resolution Per second 1 minute 8 seconds

Kling 2.6 720p $0.042 $2.52 $0.34

Wan 3 480p $0.050 $3.00 $0.40

Runway Gen-4 Turbo — $0.050 $3.00 $0.40

Kling 3.0 720p $0.084 $5.04 $0.67

Hailuo 3 768p $0.100 $6.00 $0.80

Kling 3.0 1080p $0.112 $6.72 $0.90

Runway Gen-4.5 — $0.120 $7.20 $0.96

Kling 3.0 + native audio 1080p $0.168 $10.08 $1.34

Veo 3.1 no audio $0.200 $12.00 $1.60

Seedance 2.5 720p $0.300 $18.00 $2.40

Veo 3.1 with audio $0.400 $24.00…