LTX-2.5 Pro API

Lightricks LTX-2.5 Pro: higher-fidelity LTX with audio and first/last frame, 6–10 s, 720p/1080p.

Lightricks·VideoAvailable

from$0.108/ second~~$0.12~~10% off

Model IDltx-2.5-pro

Try in Playground View API

text-to-videoimage-to-videoaudio

Input

Text · Image

Output

Video

Provider

2 providers

Duration (s)

6 · 8 · 10

Resolution

720p · 1080p

Aspect ratio

16:9 · 9:16

LTX-2.5 Pro pricing

Prices are per unit; requests without a provider are routed to the cheapest provider that supports your parameters.

Modes

Text-to-Video

Standard

from $0.108 / second

2 providers

Image-to-Video

First / last frame

from $0.108 / second

2 providers

Option	720p	1080p
Text-to-Video Standard	$0.108 / second 11 Credits~~$0.12~~10% off	$0.153 / second 16 Credits~~$0.17~~10% off
Image-to-Video First / last frame	$0.108 / second 11 Credits~~$0.12~~10% off	$0.153 / second 16 Credits~~$0.17~~10% off

Try LTX-2.5 Pro before you integrate

Test output quality, compare provider prices and estimate cost before writing any code.

Provider

Video

Estimated cost~~$1.02~~10% off92 credits$0.9180

Input

Modes

Prompt*prompt

Duration (s)duration

Resolutionresolution

Aspect ratioaspect_ratio

Generate audiogenerate_audio

Estimates use the current price catalog; prices are checked again on submission. Automatic routing may select another provider. Usage-based tasks settle after completion.

Result

Idle

Your generation will appear here.

Provider estimates for this request

LTX-2.5 Pro API reference

Endpoints, request fields and runnable examples for this model.

Base URL

https://01router.com/api/v1

llms.txt

Quick start

Set API_KEY to your project key, then run a sample from your server. Replace example media URLs with your own public URLs.

Auto-routing chooses a provider that supports the request. Select a provider to see its input constraints and pinned request examples.

curl https://01router.com/api/v1/generations \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  --data-binary @- <<'JSON'
{
  "model": "ltx-2.5-pro",
  "input": {
    "prompt": "A cinematic shot of a red fox running through snow",
    "duration": 6,
    "resolution": "1080p",
    "aspect_ratio": "16:9",
    "generate_audio": true
  }
}
JSON

# Replace GENERATION_ID with the id returned above; poll until status is "succeeded" or "failed"
curl https://01router.com/api/v1/generations/GENERATION_ID -H "Authorization: Bearer $API_KEY"

Endpoints

Only endpoints relevant to this model are listed. Paths below include /api/v1. Click an endpoint to read its usage.

POST

/api/v1/generations

Create a generation (charges credits) · API key required

GET

/api/v1/generations/{id}

Get a generation; polls the provider while running · API key required

POST

/api/v1/generations/{id}/cancel

Cancel a running generation (credits refunded) · API key required

POST

/api/v1/quote

Price a request on every provider (no charge, no key needed) · Public · no key

GET

/api/v1/prompts?model=ltx-2.5-pro&locale=en&page=1

Prompt list, model categories and filters · Public · no key

GET

/api/v1/prompts/{id}

Prompt details · Public · no key

GET

/api/v1/models/ltx-2.5-pro

Get one model · Public · no key

Name	Type	Required	Description
model	string	Yes	"ltx-2.5-pro"
provider	string	No	Pin a provider; omit to auto-route to the cheapest. One of: fal \| atlascloud
input	object	Yes	Model parameters, see the input fields below.
callback_url	string	No	Optional public HTTPS webhook URL. The final task result is signed and delivered here; polling remains available.

Name	Type	Required	Values	Default
prompt*	string	Yes	—	—
image_url Optional start image (image-to-video)	string	No	—	—
end_image_url	string	No	—	—
duration	number	No	6 \| 8 \| 10	6
resolution	string	No	720p \| 1080p	1080p
aspect_ratio	string	No	16:9 \| 9:16	16:9
generate_audio	boolean	No	—	true

Output

Creating a task does not mean generation has finished. Keep its id, poll until succeeded or failed, then read outputs or error. Amounts below are illustrative; actual charges depend on the request.

queued→processing→succeeded / failed

Task submitted

{
  "id": "gen_example",
  "object": "generation",
  "model": "ltx-2.5-pro",
  "type": "video",
  "provider": "fal",
  "status": "processing",
  "input": {
    "prompt": "A cinematic shot of a red fox running through snow",
    "duration": 6,
    "resolution": "1080p",
    "aspect_ratio": "16:9",
    "generate_audio": true
  },
  "outputs": [],
  "error": null,
  "credits": 0,
  "price_usd": 0,
  "created_at": "2026-10-25T08:00:00.000Z",
  "completed_at": null
}

Task completed

{
  "id": "gen_example",
  "object": "generation",
  "model": "ltx-2.5-pro",
  "type": "video",
  "provider": "fal",
  "status": "succeeded",
  "input": {
    "prompt": "A cinematic shot of a red fox running through snow",
    "duration": 6,
    "resolution": "1080p",
    "aspect_ratio": "16:9",
    "generate_audio": true
  },
  "outputs": [
    "https://example.com/output.mp4"
  ],
  "error": null,
  "credits": 0,
  "price_usd": 0,
  "created_at": "2026-10-25T08:00:00.000Z",
  "completed_at": "2026-10-25T08:01:00.000Z"
}

Response fields

Name	Type	Required	Description
id	string	Yes	Generation ID. Use it to query or cancel this task.
object	string	Yes	generation
model	string	Yes	ltx-2.5-pro
type	string	Yes	video
provider	string	Yes	Provider
status	string	Yes	queued → processing → succeeded / failed. Stop polling at either terminal state.
input	object	Yes	Model parameters, see the input fields below.
outputs	string[]	Yes	Result URLs. Empty while processing; read after succeeded and save the files promptly.
error	string \| null	Yes	Failure reason, or null when no failure is reported.
credits	number	Yes	Credits charged for this request.
price_usd	number	Yes	Request price in USD.
created_at	string	Yes	Creation time in ISO 8601 format.
completed_at	string \| null	Yes	Completion time in ISO 8601 format; null before completion.

Get the result

Poll every few seconds until status is succeeded or failed. Output URLs are provider-hosted and may expire — download them promptly. Or pass callback_url to get the result pushed.

curl "https://01router.com/api/v1/generations/GENERATION_ID" \
  -H "Authorization: Bearer $API_KEY"

queued → processing → succeeded / failed. Stop polling at either terminal state. Result URLs. Empty while processing; read after succeeded and save the files promptly.

Cancel a task

Cancellation depends on provider support and task state. A confirmed cancellation returns status: failed and error: Canceled by user. Unsupported or completed tasks return 409 not_cancelable.

curl -X POST "https://01router.com/api/v1/generations/GENERATION_ID/cancel" \
  -H "Authorization: Bearer $API_KEY"

Quote

Choose API quotes or frontend quotes: the API returns costs for currently available providers; frontend quotes read prices and billing fields from models and recalculate locally when inputs change.

curl "https://01router.com/api/v1/quote" -H "Content-Type: application/json" --data-binary @- <<'JSON'
{
  "model": "ltx-2.5-pro",
  "input": {
    "prompt": "A cinematic shot of a red fox running through snow",
    "duration": 6,
    "resolution": "1080p",
    "aspect_ratio": "16:9",
    "generate_audio": true
  }
}
JSON

Prompt API

Public read-only endpoints: no API key or credits required. Browse published examples for active models using combined model, source and scene filters.

curl "https://01router.com/api/v1/prompts?model=ltx-2.5-pro&locale=en&page=1"
curl "https://01router.com/api/v1/prompts/PROMPT_ID?locale=en"

Use modelSlug and prompt to construct the request body below for POST /generations. Generation still requires an API key and incurs model charges. Query GET /models/ltx-2.5-pro for any additional required inputs.

Model schema

This public endpoint returns the model parameters and each provider’s supported constraints and prices.

curl "https://01router.com/api/v1/models/ltx-2.5-pro"

Errors

Check the HTTP status and error.message. Fix the request before retrying validation or authentication errors. A failed generation is reported in status and error on the task itself.

{
  "error": {
    "message": "Invalid or missing API key",
    "code": "unauthorized"
  }
}

400Invalid body or parameter value

401Missing or invalid API key

402Not enough credits

404Unknown model or generation

409The task cannot be canceled (already finished, or the provider does not support canceling)

429Too many requests — retry after the given seconds

502Every provider rejected the task (credits refunded)

Auth, routing, billing and error codes are covered in →

Use with AI

Give your coding assistant this model reference: endpoints, input constraints, output fields and request examples in plain text.

Open llms.txt

How does LTX-2.5 Pro compare?

Specs and starting prices side by side. Test with the same prompt before you choose.

	LTX-2.5 Pro	LTX-2.5 Fast	Grok Imagine Video 1.5	Seedance 2.5
Vendor	Lightricks	Lightricks	xAI	ByteDance
Starting price	$0.108 / second	$0.027 / second	$0.011 / second	$0.052 / second
Input	Text · Image	Text · Image	Text · Image	Text · Image · Video · Audio
Provider	2 providers	3 providers	10 providers	9 providers
Duration (s)	6 · 8 · 10	6 · 8 · 10 · 12 · 14 · 16 · 18 · 20	1 – 15	4 – 30
Resolution	720p · 1080p	720p · 1080p · 1440p · 2160p	480p · 720p · 1080p	480p · 720p · 1080p
Aspect ratio	16:9 · 9:16	16:9 · 9:16	16:9 · 4:3 · 3:2 · 1:1 · 2:3 · 3:4 · 9:16	16:9 · 9:16 · 1:1 · 4:3 · 3:4 · 21:9

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