Kling V3.0 Pro T2V vs Kling 4.0

Kling V3.0 Pro T2V (Kuaishou) vs Kling 4.0 (Kuaishou), compared on price, context, speed and Arabic support. Both run on thalam through one OpenAI-compatible API, so you can switch between them with a single model id change. At a glance, Kling V3.0 Pro T2V is the cheaper option.

Specs side by side

SpecKling V3.0 Pro T2VKling 4.0
ProviderKuaishouKuaishou
TypeVideoVideo
Price$0.112 / sec$0.207 / sec
SpeedSlowSlow
Arabic supportNoneNone

Which should you choose?

Choose Kling V3.0 Pro T2V if…
  • Lower cost, about 1.8× cheaper ($0.112 / sec)
Choose Kling 4.0 if…
  • Kling 4.0 from Kuaishou: clips up to 30 seconds with sound, from a prompt or from a first and last frame, at 720p or 1080p
Run both Kling V3.0 Pro T2V and Kling 4.0 on one API

One OpenAI-compatible endpoint, one bill. Switch between them with a single model id change, pay per use, credits never expire.

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FAQ

What's the difference between Kling V3.0 Pro T2V and Kling 4.0?

Kling V3.0 Pro T2V costs less ($0.112 / sec vs $0.207 / sec). Both are available on thalam behind one OpenAI-compatible API.

Is Kling V3.0 Pro T2V or Kling 4.0 cheaper?

Kling V3.0 Pro T2V is cheaper on input ($0.112 / sec vs $0.207 / sec). On thalam you pay per use, so you can route cheap-by-default and fall back to the other only when needed.

Can I use both Kling V3.0 Pro T2V and Kling 4.0 with one API key?

Yes. thalam is OpenAI-compatible, so both models are reachable through the same endpoint. Switching between them is a one-line model id change, no code rewrite.