What a 18s job costs
8 of the 8 publish a price matrix that says what 18s costs. The spread across those 8 is 36 to 378 credits for the same 18s of output.
| Model | Provider | Credits for 18s | How that is worked out |
|---|---|---|---|
| PrunaAI P-Video | PrunaAI | 36 credits | 2/second x 18s |
| LTX 2 | LTX | 72–288 credits | 4–16/second x 18s |
| LTX 2 Text to Video Fast | LTX | 72–288 credits | 4–16/second x 18s |
| LTX 2.3 Text to Video Fast | LTX | 72–288 credits | 4–16/second x 18s |
| Flux 3 First Last Frame to Video | Black Forest Labs | 162 credits | 9/second x 18s |
| Flux 3 Text to Video | Black Forest Labs | 162 credits | 9/second x 18s |
| LTX 2.3 Retake Video | LTX | 180 credits | 10/second x 18s |
| Flux 3 Extend Video | Black Forest Labs | 378 credits | 21/second x 18s |
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.
0
go no longer than 18s
Every model here supports something longer than 18s.
0
will not go shorter
Every model here also supports something shorter than 18s.
All 8 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 | 2-40 credits | 17s below · 19s above |
| LTX 2.3 Retake Video | LTX | 20-200 credits | 16s below · 20s above |
| LTX 2 | LTX | 24-320 credits | 16s below · 20s above |
| LTX 2 Text to Video Fast | LTX | 24-320 credits | 16s below · 20s above |
| LTX 2.3 Text to Video Fast | LTX | 24-320 credits | 16s below · 20s above |
| Flux 3 First Last Frame to Video | Black Forest Labs | 43-170 credits | 17s below · 19s above |
| Flux 3 Text to Video | Black Forest Labs | 43-170 credits | 17s below · 19s above |
| Flux 3 Extend Video | Black Forest Labs | 103-410 credits | 17s below · 19s above |
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 output5 models
- Charged by output resolution2 models
- Charged per second, at a rate that changes with output resolution1 model
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 18s video?+
8 models on Versely list 18s among the clip lengths they support in a single pass — all of them video models, across 3 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 18s of video?+
PrunaAI P-Video works out cheapest at 36 credits for 18s, computed from its own price matrix (2/second x 18s). The dearest of the 8 priced here is Flux 3 Extend Video at 378 credits. All figures are Versely credits.
Is 18s the longest clip these models will make?+
No — every one of the 8 supports something longer, so 18s is a setting on all of them rather than a limit.
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