ltx-2.5/image-to-video

ltx-2.5/image-to-video

LTX 2.5 Image-to-Video animates a first-frame image into high-fidelity synchronized audio-video content, with optional last-frame guidance and 720P / 1080P / 2K / 4K output for cinematic videos, social content, ads, and production workflows. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Examples

ltx-2.5/image-to-video Examples 1

Parameters

NameTypeDefaultConstraintsDescription
prompt *Prompttextarea—≤ 5000 charsThe positive prompt for the generation.
image *Imageimage_upload—image/* · 1–1 itemsThe image for the generation.
last_imageLast Imageimage_upload—image/* · 0–1 itemsOptional last-frame image for the generation.
resolutionResolutionselect720p720p | 1080p | 2k | 4kVideo resolution.
durationDurationslider55 ~ 20 · step 1The duration of the generated media in seconds.
seedSeednumber-1step 1The random seed to use for the generation. -1 means a random seed will be used.

Output fields

FieldTypeDescription
videosarray<string>Generated videos URLs.

API

Call this model through one unified REST API. Get a key on the API Keys page.

cURL
# 1) Submit — returns { "task_uuid": "..." }
curl -X POST "https://www.namifusion.com/api/v1/marketplace/run/ltx-2.5/image-to-video" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "input": {
    "prompt": "A cinematic slow push-in on a futuristic electric sports car parked on a rain-soaked neon city street at night, reflections shimmering on the pavement, subtle steam rising from vents, soft camera motion, realistic lighting, highly detailed, atmospheric, smooth natural motion",
    "image": [
      "https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/09/16/fe9c5bb479a2.jpeg"
    ],
    "last_image": [],
    "resolution": "720p",
    "duration": 5,
    "seed": -1
  }
}'

# 2) Poll until status is "completed", then read the output URLs
curl "https://www.namifusion.com/api/v1/marketplace/run/tasks/TASK_UUID" \
  -H "Authorization: Bearer YOUR_API_KEY"
Python
import time, requests

API_KEY = "YOUR_API_KEY"
HEADERS = {"Authorization": f"Bearer {API_KEY}"}

# 1) Submit
resp = requests.post(
    "https://www.namifusion.com/api/v1/marketplace/run/ltx-2.5/image-to-video",
    headers=HEADERS,
    json={
        "input": {
            "prompt": "A cinematic slow push-in on a futuristic electric sports car parked on a rain-soaked neon city street at night, reflections shimmering on the pavement, subtle steam rising from vents, soft camera motion, realistic lighting, highly detailed, atmospheric, smooth natural motion",
            "image": [
                "https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/09/16/fe9c5bb479a2.jpeg"
            ],
            "last_image": [],
            "resolution": "720p",
            "duration": 5,
            "seed": -1
        }
    },
)
resp.raise_for_status()  # 401/402/429/5xx stop here instead of polling a bad task
task = resp.json()

# 2) Poll until a terminal state (completed / failed / cancelled).
#    This model is allowed up to 300s server-side.
deadline = time.time() + 360
while task.get("status") not in ("completed", "failed", "cancelled"):
    if time.time() > deadline:
        raise TimeoutError(f"still {task.get('status')} — keep the task_uuid and poll later")
    time.sleep(3)
    poll = requests.get(f"https://www.namifusion.com/api/v1/marketplace/run/tasks/{task['task_uuid']}", headers=HEADERS)
    poll.raise_for_status()
    task = poll.json()

print(task["status"], task.get("output"))
JavaScript
const API_KEY = "YOUR_API_KEY";
const HEADERS = { Authorization: `Bearer ${API_KEY}` };

// 1) Submit
const resp = await fetch("https://www.namifusion.com/api/v1/marketplace/run/ltx-2.5/image-to-video", {
  method: "POST",
  headers: { ...HEADERS, "Content-Type": "application/json" },
  body: JSON.stringify({
    "input": {
      "prompt": "A cinematic slow push-in on a futuristic electric sports car parked on a rain-soaked neon city street at night, reflections shimmering on the pavement, subtle steam rising from vents, soft camera motion, realistic lighting, highly detailed, atmospheric, smooth natural motion",
      "image": [
        "https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/09/16/fe9c5bb479a2.jpeg"
      ],
      "last_image": [],
      "resolution": "720p",
      "duration": 5,
      "seed": -1
    }
  }),
});
if (!resp.ok) throw new Error(`submit failed: ${resp.status} ${await resp.text()}`);
let task = await resp.json();

// 2) Poll until a terminal state (completed / failed / cancelled).
//    This model is allowed up to 300s server-side.
const deadline = Date.now() + 360 * 1000;
while (!["completed", "failed", "cancelled"].includes(task.status)) {
  if (Date.now() > deadline) throw new Error(`still ${task.status} — keep the task_uuid and poll later`);
  await new Promise((r) => setTimeout(r, 3000));
  const poll = await fetch(`https://www.namifusion.com/api/v1/marketplace/run/tasks/${task.task_uuid}`, { headers: HEADERS });
  if (!poll.ok) throw new Error(`poll failed: ${poll.status}`);
  task = await poll.json();
}

console.log(task.status, task.output);

Documentation

ltx-2.5/image-to-video

Generate video with synchronized audio. Duration: integer 5–20 seconds. Resolution: 720p, 1080p, 2k or 4k. Defaults: 720p, 5 seconds, seed -1 (random). image is a required single-image URL array in Nami; last_image is an optional single-image URL array. The adapter sends scalar URLs to MaaS. The first-frame example is prefilled; the last frame is empty by default.

Pricing

ResolutionUSD / secondCredits / second
720p$0.1010
1080p$0.1414
2k$0.2121
4k$0.3333

Default 720p × 5 s = $0.50 = 50 credits.

WaveSpeed standard list price; USD 1 = 100 credits. Any account-specific discounts are applied separately.

API

curl -X POST 'https://www.namifusion.com/api/v1/marketplace/run/ltx-2.5/image-to-video' \
  -H "Authorization: Bearer $API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
  "input": {
    "prompt": "A cinematic slow push-in on a futuristic electric sports car parked on a rain-soaked neon city street at night, reflections shimmering on the pavement, subtle steam rising from vents, soft camera motion, realistic lighting, highly detailed, atmospheric, smooth natural motion",
    "image": [
      "https://d1s3annbwribom.cloudfront.net/marketplace/examples/2026/09/16/fe9c5bb479a2.jpeg"
    ],
    "resolution": "720p",
    "duration": 5,
    "seed": -1
  }
}'
curl 'https://www.namifusion.com/api/v1/marketplace/run/tasks/TASK_UUID' \
  -H "Authorization: Bearer $API_KEY"

The submit response contains task_uuid. Poll until completed or failed. Completed output uses output.videos (URL array).

WaveSpeed official model

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