What a 20s job costs
4 of the 13 publish a price matrix that says what 20s costs. The other 9 do not: either clip length is not a term in their billing at all, or the per-second arithmetic contradicts the complete-job range the same matrix declares — in which case nothing is printed rather than picking whichever number suits. The spread across those 4 is 40 to 220 credits for the same 20s of output.
| Model | Provider | Credits for 20s | How that is worked out |
|---|---|---|---|
| Grok Imagine Video | Grok | 40–60 credits | 2–3/second x 20s |
| Seedance 2.5 | ByteDance | 120–220 credits | 6–11/second x 20s |
| Kling 4.0 | Kling | 140–200 credits | 7–10/second x 20s |
| LTX 2.3 Retake Video | LTX | 160 credits | 8/second x 20s |
Every figure is computed from that model's own price matrix and checked against the complete-job range the same matrix declares. Where the two disagree, the row is omitted rather than guessed at. 9 of the 13 are omitted for that reason or because clip length is not a term in their billing at all: PrunaAI P-Video, Boreal, Kling 4.0 Flash, LTX 2, LTX 2 Text to Video Fast, LTX 2.3 Text to Video Fast, Flux 3 First Last Frame to Video, Flux 3 Text to Video and Flux 3 Extend Video.
10
go no longer than 20s
For these, 20s is the longest single-pass generation available. Getting past it means extending a clip, which is billed as a second job.
0
will not go shorter
Every model here also supports something shorter than 20s.
All 13 models
Cheapest complete job first. Every row links to that model's spec page — tier and mode variants share a page with the model they are a variant of, so this is products rather than SKUs.
| Model | Provider | Credits per job | Where it sits in that model's range |
|---|---|---|---|
| PrunaAI P-Video | PrunaAI | 2-32 credits | its longest · down to 1s |
| Boreal | Creatify | 4-192 credits | its longest · down to 5s |
| Grok Imagine Video | Grok | 12-84 credits | 15s below · 30s above |
| Kling 4.0 Flash | Kling | 12-76 credits | its longest · down to 3s |
| LTX 2.3 Retake Video | LTX | 16-160 credits | its longest · down to 2s |
| Kling 4.0 | Kling | 19-282 credits | 15s below · 25s above |
| LTX 2 | LTX | 20-256 credits | its longest · down to 6s |
| LTX 2 Text to Video Fast | LTX | 20-256 credits | its longest · down to 6s |
| LTX 2.3 Text to Video Fast | LTX | 20-256 credits | its longest · down to 6s |
| Seedance 2.5 | ByteDance | 22-320 credits | 19s below · 21s above |
| Flux 3 First Last Frame to Video | Black Forest Labs | 34-136 credits | its longest · down to 5s |
| Flux 3 Text to Video | Black Forest Labs | 34-136 credits | its longest · down to 5s |
| Flux 3 Extend Video | Black Forest Labs | 82-328 credits | its longest · down to 5s |
How these models are billed
Three different billing shapes across the roster, which is why a straight comparison of headline figures between two of these models can mislead.
- Charged per second of output6 models
- Charged per second, at a rate that changes with output resolution5 models
- Charged by output resolution2 models
All figures are Versely credits. A credit figure marked as a headline rate is not the cost of a complete job. Your plan's credit allowance is on the pricing page.
More clip length pages
Every model on Versely · Model providers · Ranked buyer guides
Frequently asked questions
How many AI models can generate a 20s video?+
13 models on Versely list 20s among the clip lengths they support in a single pass — all of them video models, across 7 providers. Anything longer than a model's own maximum has to be built by extending a clip, which is billed as a second job.
What is the cheapest way to generate 20s of video?+
Grok Imagine Video works out cheapest at 40 credits for 20s, computed from its own price matrix (2–3/second x 20s). The dearest of the 4 priced here is Seedance 2.5 at 220 credits. All figures are Versely credits.
Is 20s the longest clip these models will make?+
For 10 of the 13, yes. The other 3 support longer clips as well, so on those 20s is a setting rather than a limit.
Why do some models have no 20s price here?+
9 of the 13 are listed without a figure. Either their billing does not have clip length as a term at all — a flat or per-megapixel model charges the same whatever the length — or multiplying their published rate by 20 produces a number outside the complete-job range the same price matrix declares. Where the snapshot contradicts itself, this page prints nothing rather than choosing.
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