Use LTX 2.5 Pro with Comfy Router

API Reference for ltx/ltx-2-5-pro, served by Comfy Router from LTX.

Request setup

Create a key at platform.comfy.org/profile/api-keys and export it as COMFY_API_KEY. For Python, run pip install comfy-sdk. For TypeScript, run npm install @comfyorg/sdk. cURL uses raw HTTP. Model ID: ltx/ltx-2-5-pro Endpoint: POST https://api.comfy.org/v2/models/ltx/ltx-2-5-pro

This model has no runnable request example. Build the body from the input documentation below, then use it with the Router quickstart.

Schema

Input

Router has not published an authored input schema for this model yet: GET /v2/models/ltx/ltx-2-5-pro/openapi.json returns an open object with x-comfy-input-schema-authored: false. Router forwards the body to LTX unchanged, so LTX’s own API documentation is authoritative for the request fields, and Router does not perform model-specific input validation. Provider validation still applies.

Output

string

Job completion timestamp (ISO 8601)

string

Job creation timestamp (ISO 8601)

object

Present when status is failed

string

Unique job identifier

object

Present when status is completed; output URLs expire 24 hours after completion

string

URL of the generated video

string

Job status (pending, processing, completed, failed)

Examples

Output

{
  "completed_at": "2026-01-01T00:02:10Z",
  "created_at": "2026-01-01T00:00:00Z",
  "id": "3f7a1b28-5c0d-4e91-8a6f-1b2c3d4e5f60",
  "result": {
    "video_url": "https://example.invalid/ltx/generated.mp4"
  },
  "status": "completed"
}

Before you ship

The SDKs create an Idempotency-Key and reuse it for automatic retries. For manual retries, reuse the original key. Router can hold the connection for up to 10 minutes. When a request fails, Router sends an X-Comfy-Error-Type response header explaining why. A 422 means Router rejected the input before calling the provider. Download generated assets promptly because result URLs can expire.

Headers

Authentication, idempotency, request IDs, error buckets, retry pacing, spend limits.

Using the Router API

Model discovery, validation errors, retries, and billing.

Limitations

What Router does not do today, and what to use instead.

Develop with Comfy

Deploy ComfyUI

Run Workflows

Comfy Router

Comfy CLI

Specifications

Use LTX 2.5 Pro with Comfy Router

Request setup

Schema

Input

Output

Examples

Output

Before you ship

Headers

Using the Router API

Limitations

​Request setup

​Schema

​Input

​Output

​Examples

​Output

​Before you ship

Headers

Using the Router API

Limitations

Request setup

Schema

Input

Output

Examples

Output

Before you ship