Kling 4.0 vs Seedance 2.5
Kling 4.0 (Kuaishou) vs Seedance 2.5 (ByteDance), 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 4.0 is the cheaper option.
Specs side by side
| Spec | Kling 4.0 | Seedance 2.5 |
|---|---|---|
| Provider | Kuaishou | ByteDance |
| Type | Video | Video |
| Price | $0.207 / sec | $1.46 / video |
| Speed | Slow | Slow |
| Arabic support | None | Strong |
Which should you choose?
- Lower cost, about 7.1× cheaper ($0.207 / sec)
- Stronger Arabic support for Gulf and MENA use
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 4.0 and Seedance 2.5?
Kling 4.0 costs less ($0.207 / sec vs $1.46 / video); Seedance 2.5 has stronger Arabic support. Both are available on thalam behind one OpenAI-compatible API.
Is Kling 4.0 or Seedance 2.5 cheaper?
Kling 4.0 is cheaper on input ($0.207 / sec vs $1.46 / video). 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 4.0 and Seedance 2.5 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.