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Kling 4.0 vs Veo 3.1

The two rates people check first when a spot needs audio and a short clip.

Field	Kling 4.0	Veo 3.1
Vendor	Kuaishou	Google DeepMind
Type	Model	Model
Open source	No	No
Resolution	1080p	Not verified
Native audio	Yes	Yes
720p	$0.157/s	Not verified
1080p	$0.235/s	Not verified
Unspecified rate	Not verified	$0.20/s
API	Yes	Yes

Kling 4.0 on Runway Dev, with audio always on. The standing list rate is 15.7 credits/s at 720p and 23.5 at 1080p. A separate 20% promo through 30 November 2026 UTC is not the standing price.

Google Veo 3.1 on Runway Dev, with a higher rate when audio is on. The table does not attach those rates to a resolution.