Kling's lip-sync endpoint re-times the mouth in a 2 to 10 second video to match new audio. The limits that matter for Reels, the unit fal does not explain, and what to use for longer footage.
5 min readKling's native 4K tier costs three times the normal rate. For a vertical Reel that Instagram compresses to 1080p, you usually pay for pixels nobody sees. The arithmetic, the exceptions, and the cheaper way to get a sharper file.
4 min readKling's O3 video editor changes what happens in an existing 3 to 15 second clip from a text prompt and up to four reference images. Price, limits, the @Element syntax, and why we rejected the earlier version and are testing it again.
5 min readKling O3 reference-to-video builds a 3 to 15 second shot around up to four references for $0.14 per second. What it accepts, how elements differ from plain reference images, and how it compares with HappyHorse 1.1.
5 min readLightricks' LTX 2.5 arrived in August 2026 as a 22-billion-parameter open-weights video model with native multishot and 4K HDR. What it offers, why we cannot quote what a clip costs, and why LTX 2.3 at $0.08 per second is still the practical choice.
4 min readThe cheapest listed image-to-video on fal at $0.0325 per second (768P base). What the Max line accepts, what the price hides at 1080P, where it suits animating a photo and where it does not, and what we have not tested.
5 min readA photo plus a recording becomes a talking video, priced from $0.05 per second at the 768P base and accepting audio up to 15 minutes. What it takes, what the price leaves out, and how it compares with OmniHuman 2.0 and Kling Avatar.
5 min readRecast swaps people in an existing clip using one to four reference photos and keeps the cuts and the soundtrack. What it costs, what it accepts, what it does with several people in frame, and what we have and have not tested.
5 min readTurbo lists at $0.01625 per second and Max at $0.0325, both as 768P base rates. How to use the cheap tier for drafts and the full tier for the final render, and what is still unknown about the quality gap.
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