Model comparison
Compare Veo 3.1 Fast and Kling Video 3.0 Pro using the same provider-sourced video generation rubric. No mystery score and no invented benchmark ranking.
Facts checked September 4, 2026
Set your usage. Your estimate updates as you type.
Example: 8-second, 720p clips with audio. Models that do not support these settings will not receive an estimate.
Estimates exclude taxes, tools, cache storage/writes, free allowances and custom discounts. Image estimates cover output only, not prompt or reference-image charges. Quality modes differ by model. Unlisted settings are not treated as free.
| Model | Access | Estimated total (USD) |
|---|---|---|
| Veo 3.1 FastGoogle | $0.80 | |
| Kling Video 3.0 ProKuaishou | Kuaishou | No reviewed rate |
Quick take
Google's lower-cost Veo 3.1 variant for quickly creating short video clips with native audio and output options up to 4K.
Fast does not mean instant: Google says video requests can still take from seconds to several minutes at peak times. Generated files are retained for two days, and feature combinations vary by endpoint.
Kuaishou's Pro video model delivered through fal for multi-shot text/image generation, optional native audio, references, and clips up to 15 seconds.
Audio, voice control, elements, motion control, and 4K variants have different rates. Treat the endpoint path as part of the product choice.
Compare the published facts
Values use each provider's own published units and limits. A blank means the provider did not publish a directly comparable value in the sources reviewed.
| Video generation | Veo 3.1 Fast | Kling Video 3.0 Pro |
|---|---|---|
| Generation priceCurrent list price per generated second or the provider's closest billing unit. | $0.10 720p · $0.12 1080p · $0.30 4K / sec | $0.112/s no audio · $0.168/s audio |
| Clip durationDocumented duration choices or maximum clip length. | 4, 6, or 8 seconds | Up to 15 seconds |
| Maximum outputHighest provider-documented output resolution, with relevant constraints. | 4K at 8 seconds | Endpoint dependent; separate 4K variant |
| Native audioWhether the endpoint generates synchronized audio with video. | Yes, always on | Optional, including multi-speaker controls |
| Input modesSupported text, image, video, reference, or motion inputs. | Text, image, or video to video | Text, image, elements, motion control |
| Generation timeOnly shown when a provider publishes a range; not a Cody benchmark. | 11 seconds–6 minutes at peak | Not published |
How to choose
Start with the job you need to complete, then validate cost, access, and policy details on your exact provider route.
Google's paid Gemini API terms say prompts and responses are not used to improve its products. Generated Veo videos are stored on the server for two days and must be downloaded to keep them.
Provider and API links
fal stores request inputs and outputs by default. The X-Fal-Store-IO: 0 request header prevents payload storage, but uploaded CDN files can remain accessible and need separate lifecycle handling.
Provider and API links
Frequently asked questions
Veo 3.1 Fast: Google's lower-cost Veo 3.1 variant for quickly creating short video clips with native audio and output options up to 4K. Kling Video 3.0 Pro: Kuaishou's Pro video model delivered through fal for multi-shot text/image generation, optional native audio, references, and clips up to 15 seconds.
Consider Veo 3.1 Fast when your priority is Rapid ad and social-video variations. Consider Kling Video 3.0 Pro when your priority is Multi-shot short-form storytelling. Test both with your own data and provider route before committing.
No. This comparison aligns provider-published facts for the Video generation category. It does not claim a universal winner or combine incompatible third-party benchmark scores.
