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Documentation Index

Fetch the complete documentation index at: https://docs.lettherebe.app/llms.txt

Use this file to discover all available pages before exploring further.

The Video panel turns a promoted shot into motion. Every model takes the shot as its first frame and fills in movement. The model decides duration, resolution, audio, and cost. Pricing is in LTB tokens at 1 token = $0.05.

How the panel works

A promoted shot opens the Video panel. The left side shows the first frame and a prompt field. The right side carries the model picker and the output options the chosen model supports. Kling 3.0 Pro runs by default for single-image input. Multi-image input — feeding three reference shots of the same character — switches the default to Kling O3 Pro.
The right panel only renders options the active model supports. Resolution, aspect ratio, and audio fields appear or disappear when you switch models, so an unsupported combination cannot leave the browser.

Four levers control the cost

Every model exposes a subset of four levers. Each lever has a direct effect on tokens charged.
LeverRangeCost effect
Duration3s to 20s (per model)Linear — tokens scale with seconds
Resolution480p to 4K (per model)Each step roughly 2x to 4x
Aspect ratio16:9, 9:16, 1:1, 4:3, 3:4, 21:9Usually no cost change
Audioon / off1.25x to 2x when supported
Generation time runs 30s to 5min depending on the levers above. Results land in the project library and are ready to share or download.

Pick by use case

The fourteen models cluster around four typical jobs. Start with the recommendation that matches your job, then check the full pricing table at the bottom.

Default working model — Kling 3.0 Pro

Kling 3.0 Pro is the panel default. Supports end-frame, reference images, elements, and multi-shot. Pricing is $0.112/sec silent and $0.168/sec with audio at 1080p. An 8-second clip costs 22 tokens silent or 32 tokens with audio.
Kling O3 Pro is the only model that accepts multi-image input. Feed front, side, and full-body shots of one character and the camera can move without the face drifting. Use this for series, ad campaigns, or any project where one identity recurs.
Veo 3.1 is the only model with a 2160p (4K) SKU. The cost jumps from $0.20/sec at 1080p silent to $0.40/sec at 4K silent, and $0.60/sec with audio. Lock the cut in 1080p first, then re-render the keepers in 4K.
Both Sora models support durations up to 20s — the longest range in the panel. Sora 2 runs at $0.10/sec; Sora 2 Pro reaches 1080p at $0.50/sec. Audio is not supported. Use them when one long take serves the story better than two short ones stitched.
LTX 2.3 runs at $0.06/sec at 1080p — the cheapest 1080p in the panel. Seedance 1.5 reaches $0.030/sec at 480p. Both ship silent only. Pick LTX for previews at full resolution, Seedance for storyboard checks.
Hailuo 2.3 Pro charges $0.49 per clip regardless of length or resolution. 6s fixed, no audio, no end-frame. The flat rate makes invoicing and budget approval trivial when the deliverable is one finished cut.

Where to spend less

Audio is the largest single lever. On Kling 3.0 Pro, turning audio off drops $0.168/sec to $0.112/sec — a 33% cut. On Veo 3.1 at 1080p, audio off drops $0.40/sec to $0.20/sec — half. Compose music and narration in post if the model output is only the picture you need.
A few concrete pairings show the spread.
  • Veo 3.1 · 1080p · 8s · silent = 38 tokens ($1.90)
  • LTX 2.3 · 1080p · 8s · silent = 11.6 tokens ($0.48)
  • Seedance 1.5 · 480p · 5s · silent = 3.75 tokens ($0.19)
For social previews, the cheapest pairing often looks identical to the most expensive once it lands in a feed at 720p.

Full pricing table

$/sec is at 1080p unless noted. separates silent and audio-on rates.
ModelDurationResolution$/sec
Kling 3.0 Pro3–15s1080p0.112 → 0.168
Kling 3.0 Standard3–15s1080p0.084 → 0.126
Kling O3 Pro3–15s1080p0.112 → 0.140
Kling 2.6 Pro5s / 10s1080p0.070 → 0.140
Kling 2.5 Turbo Pro5s / 10s1080p0.070 (silent only)
Veo 3.14s / 6s / 8s720p, 1080p, 4K0.20 → 0.40 · 4K: 0.40 → 0.60
Veo 3.04s / 6s / 8s720p, 1080p0.20 → 0.40
LTX 2.36s / 8s / 10s1080p, 1440p, 2160p0.06 (1080p) · 0.24 (2160p), silent only
Seedance 1.54–12s480p, 720p, 1080p0.030 (480p) · 0.236 (1080p)
Seedance 2.05s / 10s480p, 720p0.063 (480p) · 0.142 (720p)
Hailuo 02 Pro6s1080p0.080 (silent only)
Hailuo 2.3 Pro6s1080pflat $0.49 / clip
Wan 2.75s / 10s / 15s720p, 1080p0.10 (720p) · 0.15 (1080p), silent only
Sora 24s / 8s / 12s / 16s / 20s720p0.10 (silent only)
Sora 2 Pro4s / 8s / 12s / 16s / 20s720p, 1080p0.30 (720p) · 0.50 (1080p), silent only
LTB does not cap model choice by plan tier. As long as your token balance covers the request, the most expensive model on the list is available for back-to-back generation. Decide the working model per project to keep costs predictable.

After generation

Finished videos save to the project library. From the card you can play, download an MP4, publish a share link, or regenerate with a new seed at the same settings. Send the cut to the timeline editor for trimming, captions, and BGM.

Next

Image models

The two shot generators — Nano Banana Pro and Flash.

Image mode

Prepare the first frame before animating.