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MarkdownLLMs.txt

Wan 2.6

In this page's examples, {BASE_URL} is https://api.uniall.ai.

Wan 2.6 covers text-to-video, image-to-video, and reference-to-video model families. The source scope also includes a duration reference table for the Wan 2.6 public models.

Supported Models​

ModelTypeDuration rules
wan2.6-video-720pText-to-video / image-to-videoRequired; 5, 10, or 15.
wan2.6-video-1080pText-to-video / image-to-videoRequired; 5, 10, or 15.
wan2.6-i2v-flash-720p-audioImage-to-video with audioRequired; any integer from 5 to 15.
wan2.6-i2v-flash-720p-silentImage-to-video silentRequired; any integer from 5 to 15.
wan2.6-i2v-flash-1080p-audioImage-to-video with audioRequired; any integer from 5 to 15.
wan2.6-i2v-flash-1080p-silentImage-to-video silentRequired; any integer from 5 to 15.
wan2.6-r2v-720pReference-to-videoRequired; see account model configuration.
wan2.6-r2v-1080pReference-to-videoRequired; see account model configuration.
wan2.6-r2v-flash-720p-audioReference-to-video with audioRequired; see account model configuration.
wan2.6-r2v-flash-720p-silentReference-to-video silentRequired; see account model configuration.
wan2.6-r2v-flash-1080p-audioReference-to-video with audioRequired; see account model configuration.
wan2.6-r2v-flash-1080p-silentReference-to-video silentRequired; see account model configuration.

Endpoint​

POST /v1/video/generations
GET  /v1/videos/{task_id}

Authentication​

Authorization: Bearer sk-***
Content-Type: application/json

Request Parameters​

ParameterTypeRequiredDescription
modelstringYesWan 2.6 model ID.
promptstringYesPrompt.
imagestringConditionalReference image for image-to-video.
imagesstring[]ConditionalReference images for R2V models.
videosstring[]ConditionalReference videos for R2V models.
durationintegerYesSee the supported model table.
sizestringNoOutput size. Text-to-video can use this to choose landscape or portrait. Image-to-video follows the reference image orientation.
extra_body.negative_promptstringNoContent to avoid.
extra_body.shot_typestringNosingle or multi.
extra_body.seedintegerNo-1 for random; fixed value for reproducibility.
extra_body.audiostringNoPublic audio URL.
extra_body.enable_prompt_expansionbooleanNoPrompt expansion switch for R2V models.

Common size values include 1280*720, 720*1280, 1920*1080, and 1080*1920.

Text-To-Video Example​

curl -X POST "{BASE_URL}/v1/video/generations" \
  -H "Authorization: Bearer sk-***" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "wan2.6-video-1080p",
    "prompt": "sunrise",
    "duration": 5,
    "size": "1080*1920",
    "extra_body": {
      "negative_prompt": "blur, watermark",
      "shot_type": "multi",
      "seed": -1
    }
  }'

Reference Video Example​

curl -X POST "{BASE_URL}/v1/video/generations" \
  -H "Authorization: Bearer sk-***" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "wan2.6-r2v-flash-720p-audio",
    "prompt": "Keep the same subject identity and cinematic style, generate a faster-paced new shot.",
    "videos": [
      "https://example.com/reference-shot-1.mp4"
    ],
    "size": "1280*720",
    "duration": 5,
    "extra_body": {
      "negative_prompt": "watermark, blur, flicker",
      "audio": "https://example.com/guide-audio.mp3",
      "shot_type": "single",
      "enable_prompt_expansion": false,
      "seed": -1
    }
  }'

Multi-Image Reference Example​

curl -X POST "{BASE_URL}/v1/video/generations" \
  -H "Authorization: Bearer sk-***" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "wan2.6-r2v-flash-1080p-silent",
    "prompt": "Keep the same product identity and style, generate a clean marketing video.",
    "images": [
      "https://example.com/ref-1.png",
      "https://example.com/ref-2.png"
    ],
    "size": "1920*1080",
    "duration": 10,
    "extra_body": {
      "negative_prompt": "watermark, blur",
      "shot_type": "multi",
      "enable_prompt_expansion": true,
      "seed": 42
    }
  }'

Task Status And Result​

After creation, save id or task_id, then poll GET /v1/videos/{task_id} until the task reaches completed or failed. See Video Generation Overview for the shared polling interval, status fields, error contract, result URL, and authenticated download flow.

Billing Notes​

Wan 2.6 billing depends on model family, output resolution, duration, audio mode, and whether the task is text/image/video reference generation. Use settlement records for final accounting.

Common Errors​

  • Using a duration value outside the selected model's allowed range.
  • Expecting size to control portrait or landscape for image-to-video; image orientation follows the reference image.
  • Passing private media URLs.
  • Using R2V fields with a non-R2V model.
  • Using audio with a silent model.