LTX-2.5 Fast vs Wan 3.0: price per second at 720p and 1080p

On list prices LTX-2.5 Fast is cheaper than Wan 3.0 at both common resolutions: $0.09 against $0.10 at 720p and $0.13 against $0.20 at 1080p. On Sume, Wan 3.0 is $0.125 and $0.25 because Sume bills vendor list times 1.25. LTX-2.5 is not on Sume, so the cheaper route is to call fal directly.

The numbers

What the price does not capture

fal lists LTX-2.5 Fast up to 20 seconds, and Pro at 6, 8 or 10 seconds. Wan 3.0 reaches 30 seconds in one pass. Wan 3.0 takes image, video and audio references; fal's page lists LTX-2.5 with a licence: the LTX-2.x Community License needs a paid licence at $10 million annual revenue or more.

A sensible rule

For a short 1080p test where cost is the only constraint, run LTX-2.5 Fast on fal. For clips longer than 20 seconds, reference-heavy shots or one bill across vendors, use Wan 3.0 on Sume. Test both on the same still before committing a batch.

A 100-clip example

One hundred 10-second clips at 1080p cost $130 with LTX-2.5 Fast on fal, $200 on Alibaba's Singapore list for Wan 3.0, and $250 on Sume. The Sume figure is 92% above fal's; the Alibaba figure is 54% above. If both models are good enough for your shot, the gap decides the project.

If one model needs fewer retakes, the gap closes. At two takes per keeper, LTX at $130 becomes $260, while Wan 3.0 on Sume at one take stays at $250. Test both on a dozen of your own prompts before choosing.