LTX-2.5 API
New20s max · 768p · Released Apr 14, 2026 · By Lightricks · LTXV Open Weights
LTX-2.5 costs $0.024 per second, against an official rate of $0.04 — 40% below official pricing. It is a Lightricks model under the LTXV Open Weights licence, callable through an OpenAI-compatible endpoint with the model id `lightricks/ltx-2.5`. This model is listed for reference and is not currently served by an upstream provider, so requests for it return no available channel.
Not currently available. No configured upstream serves this model, so a request for it returns no available channel. The rate below is what it will cost when it is enabled.
Input
$0.024/sec
$0.040/sec
Billing
per second
no per-job minimum
Savings
40%
off official
- No markup
- OpenAI SDK compatible
- No minimum spend
- LTXV Open Weights
Built for speed — generates faster than real time on a single GPU, which is why it is usually the cheapest per finished second of usable footage.
Copy this and go
The model id is already filled in. Nothing in this snippet needs editing except your key.
import requests
job = requests.post(
"https://router.xark.io/api/v1/video/generations",
headers={"Authorization": "Bearer YOUR_API_KEY"},
json={
"model": "lightricks/ltx-2.5",
"prompt": "a paper boat drifting down a rain-slicked street at night",
"duration": 5,
"resolution": "720p"
}
).json()
print(job["id"], job["estimated_cost_usd"]) # ← cost known before it renders
LTX-2.5 pricing across providers
Rates as published by each provider. We update these when they change; if you spot one that's stale, tell us and we'll fix it.
| Provider | Input | Output |
|---|---|---|
| AI Token Router | $0.024/sec | — |
| Official (Lightricks) | $0.040/sec | — |
| Replicate | $0.050/sec | — |
| fal.ai | $0.046/sec | — |
| OpenRouter | Not offered | — |
What it's good at
- Interactive/real-time video experiences
- High-volume variant generation for testing
- Longer clips up to 20 seconds
Other video models
LTX-2.5 questions
Every figure below is read from the same catalogue entry as the table above, so the two cannot disagree.
What does LTX-2.5 cost on AI Token Router, and what is the official rate?
LTX-2.5 is billed at $0.024 per second here, against Lightricks's official $0.040 — 40% below, or $0.016 per second back. There is no platform fee, no minimum spend and no per-job surcharge on top of that rate, and failed requests are not billed. The official figure is published next to ours because a discount with no stated benchmark is not a claim anyone can check.
Can I call LTX-2.5 right now?
No. LTX-2.5 is catalogued but not currently servable — no configured upstream provider carries it, so a request naming `lightricks/ltx-2.5` returns `no available channel` instead of a result. The rate on this page is what it will cost once an upstream serves it, not something you can spend today. No video model in this catalogue is servable yet. What is callable today is Kimi K2.6, Kimi K3, GLM-5.2, DeepSeek V4 Pro, DeepSeek V4 Flash, Qwen-Image and Qwen3 Embedding 8B. 7 of the 24 catalogued models are callable, and every page says which it is.
Why is every LTX-2.5 generation billed at a fixed duration?
Because a flat price has to be exact rather than approximately right. The billing layer prices a video call as one flat amount per call and does not scale it with a request parameter, so a per-second model routed through it is either exact at a single fixed duration or wrong at every other one. Rather than charge a one-second request what a 20-second request costs, the endpoint accepts `duration` only at 5 seconds and refuses anything else before the request reaches the gateway. At $0.024/sec that makes one LTX-2.5 clip $0.1200, known before it renders. Variable-length billing is planned; until it ships, the quoted number is the charged number.
How do I generate a clip with LTX-2.5?
Video generation is asynchronous rather than a chat call. POST to `https://router.xark.io/api/v1/video/generations` with `"model": "lightricks/ltx-2.5"` and a prompt, using the same `Authorization: Bearer` header as every other endpoint, then poll the returned job id for the finished clip. The job response carries `estimated_cost_usd`, so the charge is known before the render starts rather than after it. The bare name `ltx-2.5` and the URL slug `ltx-2-5` resolve to the same model.
How long a clip can LTX-2.5 produce, and at what resolution?
Up to 20 seconds per clip, at 768p. That is the longest clip any video model in this catalogue will produce. Note that the model's maximum and the billed duration are two different numbers during this rollout: generations run at a fixed 5 seconds so the quoted price is exact. Longer output than that comes from stitching clips, which bills as the number of calls you make.
What licence is LTX-2.5 under, and can I use it commercially?
LTX-2.5 is published by Lightricks under the LTXV Open Weights licence. That is Lightricks's own licence rather than a standard open-source text, so what it permits is set by the document and not by anything inferable from its name. What we can state: it allows third-party hosting, which is the condition for a model appearing in this catalogue at all — we do not resell access to closed-weight models. Conditions such as user thresholds, attribution requirements or acceptable-use terms are common in licences of this kind, so read Lightricks's text before you ship.
How does LTX-2.5 pricing here compare with other providers carrying it?
Of the 2 other providers we track carrying LTX-2.5, the lowest is fal.ai at $0.046/sec, against our $0.024/sec. That is where the rates stood when we last reconciled them, and it can change without notice — we are not claiming to be the cheapest source for this model, only that our rate sits below Lightricks's official $0.040/sec. If you find one of these figures stale, tell us and we will correct it.