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Ltx 2.3 Quality · Text to Video

Integrate

Model id ltx-2.3-quality/text-to-video
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/ltx-2.3-quality/text-to-video?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.com/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"

Files like the example: $0.27 270 API credits your files are measured before the run Run it on this page

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Lightricks · Video

Your first result goes here

Build a request below and run it with your API key. Outputs are copied to our storage, kept forever or 7 days for free.

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Controls are generated from the model schema. The code and the price update as you change them.

•required

Prompt used as the basis for video generation.

resolution default landscape_16_9

Dimensions of the generated video.

default 121

Frame count for the generated output.

Advanced negative_prompt · video_quality · video_write_mode · frames_per_second · num_inference_steps · guidance_scale · seed · enable_prompt_expansion · enable_safety_checker
default color distortion, ove...

Negative prompt specifying what generation should avoid.

video_quality default high

Quality preset applied to the output video.

video_write_mode default balanced

Write mode for the resulting video.

default 24

Output video frame rate, measured in frames per second.

default 15

Set how many inference steps to run, up to 30; leaving this unchanged uses 15.

default 1

Adjust classifier-free guidance using this scale; its default tuning targets both high quality and fast generation.

Seed that makes generation reproducible. Setting it to None selects a seed randomly.

POST /run/ltx-2.3-quality/text-to-video?wait=20 quote → $0.27
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/ltx-2.3-quality/text-to-video?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.com/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"

Run this request

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About Ltx 2.3 Quality · Text to Video

Generates a video clip from a text `prompt`. `num_frames` ranges from 9 to 481 and `frames_per_second` from 1 to 60. Output size is chosen from presets such as `square_hd`, `portrait_16_9` and `landscape_16_9`. `generate_audio` can be switched off to get a silent MP4, and `num_inference_steps` can be raised from 15 up to 30.

Parameters

NameType DefaultAllowed Description
promptrequired
Typestring
Prompt used as the basis for video generation.
num_framesoptional
Typeinteger
Default121
9 – 481
Frame count for the generated output.
resolutionoptional
Typeobject
Defaultlandscape_16_9
square_hdsquareportrait_4_3portrait_16_9landscape_4_3landscape_16_9
Dimensions of the generated video.
frames_per_secondoptional
Typenumber
Default24
1 – 60
Output video frame rate, measured in frames per second.
num_inference_stepsoptional
Typeinteger
Default15
8 – 30
Set how many inference steps to run, up to 30; leaving this unchanged uses 15.
guidance_scaleoptional
Typenumber
Default1
1 – 20
Adjust classifier-free guidance using this scale; its default tuning targets both high quality and fast generation.
generate_audiooptional
Typeboolean
Defaulttrue
Audio-track toggle for the returned MP4: off produces a video-only file, and on includes audio.
negative_promptoptional
Typestring
Defaultcolor distortion, overexposure, static, blurry details, subtitles, style, artwork, painting, frame, still, dim overall tone, worst quality, low quality, JPEG compression artifacts, ugly, mutilated, extra fingers, poorly drawn hands, poorly drawn face, deformed, disfigured, malformed limbs, fused fingers, motionless frame, cluttered background, three legs, crowded background, walking backwards
Negative prompt specifying what generation should avoid.
seedoptional
Typeinteger | null
Seed that makes generation reproducible. Setting it to None selects a seed randomly.
enable_prompt_expansionoptional
Typeboolean
Defaulttrue
Controls whether prompt expansion is enabled.
enable_safety_checkeroptional
Typeboolean
Defaulttrue
Controls whether safety checking is enabled.
video_qualityoptional
Typeenum
Defaulthigh
lowmediumhighmaximum
Quality preset applied to the output video.
video_write_modeoptional
Typeenum
Defaultbalanced
fastbalancedsmall
Write mode for the resulting video.
required

Output

GET /requests/req_8k2m4q7x1z9c3v5b6n0p2r4t
{
  "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
  "object": "request",
  "model": "ltx-2.3-quality/text-to-video",
  "status": "succeeded",
  "created_at": "2026-10-20T12:00:00Z",
  "started_at": "2026-10-20T12:00:02Z",
  "completed_at": "2026-10-20T12:00:09Z",
  "queue_position": null,
  "cost": {
    "credits": 270,
    "usd": "0.27",
    "charged": 270,
    "refunded": 0
  },
  "input": {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  },
  "output": {
    "video": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_name": "0-output.mp4",
      "file_size": 1843200
    },
    "seed": 42,
    "prompt": "string"
  },
  "outputs": [
    {
      "type": "video",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_size": 1843200,
      "width": 1280,
      "height": 720,
      "duration": 5,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
Your files, your choiceEvery outputs[].url is a copy on our storage: kept forever (paid per GB-month) or 7 days for free, by your account setting or ?storage=.
Same shape on every modeltype, url, content_type, width, height and duration, for images, video and audio alike. output is the model’s own result object.
Fields of output
video
object {url, content_type, file_name, file_size}Video produced by the model.
seed
integerActual seed applied during generation.
prompt
stringGeneration prompt, including any expansion applied before use.

More models: Text to Video

For AI agents: this page as Markdown is at https://doitong.com/developers/models/ltx-2.3-quality/text-to-video.md. All models and guides: https://doitong.com/developers/llms.txt