Wan 2.5

Overview

Wan 2.5 generates short videos from a text prompt or from one reference image plus a prompt. Use this page when you are ready to call the API after trying the model in the APIXO playground.

Capability	Value
Model ID	`wan-2-5`
Modes	`text-to-video`, `image-to-video`
Prompt length	1-800 characters
Reference images	Exactly 1 URL for `image-to-video`
Resolutions	`720p`, `1080p`
Duration	`5` or `10` seconds
Text-to-video aspect ratios	`16:9`, `9:16`, `1:1`
Prompt expansion	Enabled by default

Endpoint and authentication

Base URL:

https://api.apixo.ai/api/v1

Method	Endpoint	Purpose
`POST`	`/generateTask/wan-2-5`	Submit a generation task
`GET`	`/statusTask/wan-2-5?taskId={taskId}`	Poll task status and retrieve results

All requests require your APIXO API key:

Authorization: Bearer YOUR_API_KEY

Submit requests also require:

Content-Type: application/json

Copy-paste async quickstart

This minimal request submits a text-to-video task and returns a taskId.

curl -X POST "https://api.apixo.ai/api/v1/generateTask/wan-2-5" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "request_type": "async",
    "input": {
      "mode": "text-to-video",
      "prompt": "a cinematic shot of clouds drifting over a quiet mountain lake",
      "resolution": "720p",
      "duration": 5,
      "aspect_ratio": "16:9"
    }
  }'

Successful response:

{
  "code": 200,
  "message": "success",
  "data": {
    "taskId": "task_12345678"
  }
}

Save the taskId; you need it to poll for the final result.

Poll for result

curl -X GET "https://api.apixo.ai/api/v1/statusTask/wan-2-5?taskId=task_12345678" \
  -H "Authorization: Bearer YOUR_API_KEY"

Processing response:

{
  "code": 200,
  "message": "success",
  "data": {
    "taskId": "task_12345678",
    "state": "processing",
    "createTime": 1767965610929
  }
}

Success response:

{
  "code": 200,
  "message": "success",
  "data": {
    "taskId": "task_12345678",
    "state": "success",
    "resultJson": "{\"resultUrls\":[\"https://r2.apixo.ai/video.mp4\"]}",
    "createTime": 1767965610929,
    "completeTime": 1767965752317,
    "costTime": 141388
  }
}

Failed response:

{
  "code": 200,
  "message": "success",
  "data": {
    "taskId": "task_12345678",
    "state": "failed",
    "failCode": "CONTENT_VIOLATION",
    "failMsg": "Content does not meet safety guidelines",
    "createTime": 1767965610929,
    "completeTime": 1767965620132
  }
}

Parse resultJson after state becomes success:

const payload = JSON.parse(data.resultJson);
const videoUrls = payload.resultUrls;

Request body

Text-to-video

{
  "request_type": "async",
  "input": {
    "mode": "text-to-video",
    "prompt": "a serene mountain landscape with moving clouds and gentle breeze",
    "resolution": "720p",
    "duration": 5,
    "aspect_ratio": "16:9",
    "negative_prompt": "low quality, blurry",
    "enable_prompt_expansion": true
  }
}

Image-to-video

{
  "request_type": "async",
  "input": {
    "mode": "image-to-video",
    "prompt": "turn this photo into a smooth cinematic shot with a slow push-in camera move",
    "image_urls": [
      "https://example.com/reference.png"
    ],
    "resolution": "1080p",
    "duration": 5,
    "enable_prompt_expansion": true
  }
}

Parameters

request_type

string

default:"async"

required

Result delivery mode. Use async for polling with statusTask, or callback for webhook delivery.

callback_url

string

Required when request_type is callback. Must be a public HTTPS URL that can receive the final task payload. See Webhooks.

input

object

required

Wan 2.5 input parameters.

Show properties

mode

string

required

Generation mode. Supported values: text-to-video, image-to-video.

prompt

string

required

Text prompt describing the desired video. Supports 1-800 characters.

image_urls

string[]

Reference image URL. Required for image-to-video. Must contain exactly 1 URL.

resolution

string

required

Output resolution. Supported values: 720p, 1080p.

duration

integer

required

Output duration in seconds. Supported values: 5, 10.

aspect_ratio

string

default:"16:9"

Output aspect ratio for text-to-video. Supported values: 16:9, 9:16, 1:1. Omit this field for image-to-video.

negative_prompt

string

Negative prompt describing what to avoid. Supports up to 500 characters.

seed

integer

Optional seed for reproducible generations. Omit it to use a random seed.

enable_prompt_expansion

boolean

default:"true"

Whether to let the model expand and optimize the prompt before generation.

Response format

Submit task response

POST /generateTask/wan-2-5 returns a task ID when the task is accepted:

code

integer

API status code. 200 means the task was accepted.

message

string

Human-readable status message.

data.taskId

string

Unique task identifier used with the status endpoint.

Status response fields

taskId

string

Unique task identifier.

state

string

Current task state: pending, processing, success, or failed.

resultJson

string

JSON string containing the generated video URLs. Present when state is success.

failCode

string

Machine-readable failure code. Present when state is failed.

failMsg

string

Human-readable failure message. Present when state is failed.

createTime

integer

Task creation timestamp in Unix milliseconds.

completeTime

integer

Task completion timestamp in Unix milliseconds. Present after completion.

costTime

integer

Processing duration in milliseconds. Present after successful completion.

Webhook callback mode

Use callback mode when your backend should receive the final result automatically instead of polling.

curl -X POST "https://api.apixo.ai/api/v1/generateTask/wan-2-5" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "request_type": "callback",
    "callback_url": "https://your-server.com/webhooks/apixo",
    "input": {
      "mode": "text-to-video",
      "prompt": "a polished product demo video with gentle camera movement",
      "resolution": "720p",
      "duration": 5,
      "aspect_ratio": "16:9"
    }
  }'

See Webhooks for delivery requirements and retry behavior.

Billing

Wan 2.5 is billed per generated video. The selected resolution and duration determine the unit price.

Resolution	Duration	APIXO price
`720p`	`5` seconds	`$0.40 / video`
`720p`	`10` seconds	`$0.80 / video`
`1080p`	`5` seconds	`$0.65 / video`
`1080p`	`10` seconds	`$1.30 / video`

For current route and market comparison pricing, see Pricing.

Latency and polling

Video generation is long-running. Actual latency may vary by prompt complexity, mode, selected resolution, and current queue load.

Request shape	Typical generation time	Recommended first poll	Poll interval
`720p`	60s-180s	60s after task creation	10s
`1080p`	90s-250s	90s after task creation	10s

For high-concurrency production workloads, use callback mode to avoid frequent polling.

Practical notes:

Use aspect_ratio only with text-to-video; image-to-video uses the reference image as the visual anchor.
Use negative_prompt to reduce blur, jitter, distortion, and unwanted visual artifacts.
Enable prompt expansion for short prompts; disable it when you need tighter control over an already detailed prompt.
Result URLs are temporary. Download important outputs promptly.

Rate limits and concurrency can vary by account, API key, and route. If you receive 429, slow down requests and retry with backoff. For account-level details, see System APIs.

Errors and troubleshooting

HTTP errors

Code	Meaning	What to do
`400`	Invalid request body, mode, parameter, or image URL shape	Fix the request before retrying
`401`	Missing or invalid API key	Check the `Authorization` header
`402`	Insufficient balance or quota	Add balance or switch account/key
`403`	Key or account cannot access the model	Check account permissions
`429`	Rate limit or concurrency limit reached	Retry with exponential backoff
`500`	Server error	Retry with backoff
`502`	Upstream service error	Retry with backoff
`504`	Upstream timeout	Retry or use callback mode for long-running jobs

Task failure codes

Fail code	Meaning	What to do
`CONTENT_VIOLATION`	Prompt or reference image failed safety checks	Change the prompt or input image
`INVALID_IMAGE_URL`	A reference image URL could not be fetched or decoded	Use a public, direct image URL
`INVALID_PARAMETER`	A model parameter is unsupported or malformed	Check `mode`, `resolution`, `duration`, `aspect_ratio`, and `image_urls`
`INSUFFICIENT_BALANCE`	The account does not have enough balance for the task	Add balance before retrying
`UPSTREAM_ERROR`	Upstream service failure	Retry with backoff
`TIMEOUT`	Generation did not finish in time	Retry, reduce input complexity, or use callback mode

Parameter troubleshooting

prompt is required for both text-to-video and image-to-video.
image_urls is required only for image-to-video and must contain exactly one URL.
resolution and duration are required; they are not filled in automatically by the API.
aspect_ratio supports 16:9, 9:16, and 1:1, and only applies to text-to-video.
negative_prompt must be 500 characters or fewer.

See Error Codes for the full error reference.

Getting Started

Image Models

Video Models

Audio Models

Overview

Endpoint and authentication

Copy-paste async quickstart

Poll for result

Request body

Text-to-video

Image-to-video

Parameters

Response format

Submit task response

Status response fields

Webhook callback mode

Billing

Latency and polling

Errors and troubleshooting

HTTP errors

Task failure codes

Parameter troubleshooting

Getting Started

Image Models

Video Models

Audio Models

Documentation Index

​Overview

​Endpoint and authentication

​Copy-paste async quickstart

​Poll for result

​Request body

​Text-to-video

​Image-to-video

​Parameters

​Response format

​Submit task response

​Status response fields

​Webhook callback mode

​Billing

​Latency and polling

​Errors and troubleshooting

​HTTP errors

​Task failure codes

​Parameter troubleshooting

​Related links

Overview

Endpoint and authentication

Copy-paste async quickstart

Poll for result

Request body

Text-to-video

Image-to-video

Parameters

Response format

Submit task response

Status response fields

Webhook callback mode

Billing

Latency and polling

Errors and troubleshooting

HTTP errors

Task failure codes

Parameter troubleshooting

Related links