ltx-2.5/image-to-video 图片转视频
ltx-2.5/image-to-video
LTX 2.5 图片转视频可将首帧图片动画化,生成高保真、音视频同步的内容,并支持可选的末帧引导以及 720P / 1080P / 2K / 4K 输出,适用于电影感视频、社交内容、广告和制作流程。提供开箱即用的 REST 推理 API,性能出色,无冷启动,价格实惠。
示例
参数
| 名称 | 类型 | 默认 | 约束 | 说明 |
|---|---|---|---|---|
| prompt *提示词 | textarea | — | ≤ 5000 chars | 用于生成的正向提示词。 |
| image *图片 | image_upload | — | image/* · 1–1 items | 用于生成的图片。 |
| last_image最后一帧图片 | image_upload | — | image/* · 0–1 items | 可选的生成末帧图片。 |
| resolution分辨率 | select | 720p | 720p | 1080p | 2k | 4k | 视频分辨率。 |
| duration时长 | slider | 5 | 5 ~ 20 · step 1 | 生成媒体的时长(秒)。 |
| seed随机种子 | number | -1 | step 1 | 用于生成的随机种子。-1 表示将使用随机种子。 |
输出字段
| 字段 | 类型 | 说明 |
|---|---|---|
| videos | array<string> |
API
通过统一 REST API 调用本模型;在 API Keys 页获取密钥。
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);文档
ltx-2.5/image-to-video
生成音画同步视频。时长为 5~20 的整数秒,分辨率支持 720p、1080p、2k、4k。默认 720p、5 秒,seed=-1 表示随机种子。 Nami 的 image 为必填单图 URL 数组,last_image 为可选单图 URL 数组。首帧已预填示例,末帧默认留空。
价格
| Resolution | USD / second | Credits / second |
|---|---|---|
| 720p | $0.10 | 10 |
| 1080p | $0.14 | 14 |
| 2k | $0.21 | 21 |
| 4k | $0.33 | 33 |
Default 720p × 5 s = $0.50 = 50 credits.
与 WaveSpeed 官方标准价一致;1 美元 = 100 积分。账户专属折扣另行计算。
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"
提交响应包含 task_uuid;轮询直至 completed 或 failed。成功结果字段为 output.videos (URL array).
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