LTX-2.3 22B · Extend Video
Integrace
ltx-2.3-22b/extend-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-2.3-22b/extend-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",
"video": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
}'
# 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 $DOITONG_API_KEY"
const API = "https://api.doitong.com/v1";
const headers = {
"Authorization": "Bearer " + process.env.DOITONG_API_KEY,
"Content-Type": "application/json",
};
// Run the model; wait up to 20 s for the finished result in the same call
let res = await fetch(API + "/run/ltx-2.3-22b/extend-video?wait=20", {
method: "POST",
headers,
body: JSON.stringify({
"prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
"video": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
}),
});
let request = await res.json();
if (!res.ok) throw new Error(request.error.code + ": " + request.error.message);
// Not finished yet: long-poll until it is
while (request.status === "queued" || request.status === "running") {
res = await fetch(API + "/requests/" + request.id + "?wait=20", { headers });
request = await res.json();
}
if (request.status !== "succeeded") throw new Error(JSON.stringify(request.error));
console.log(request.outputs.map((o) => o.url), request.cost.credits + " API credits ($" + request.cost.usd + ")");
import os
import requests
API = "https://api.doitong.com/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}
payload = {
"prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
"video": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
}
# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/ltx-2.3-22b/extend-video", params={"wait": 20}, json=payload, headers=headers)
request = r.json()
if not r.ok:
raise RuntimeError(request["error"]["code"] + ": " + request["error"]["message"])
# Not finished yet: long-poll until it is
while request["status"] in ("queued", "running"):
request = requests.get(API + "/requests/" + request["id"], params={"wait": 20}, headers=headers).json()
if request["status"] != "succeeded":
raise RuntimeError(request["error"])
print([o["url"] for o in request["outputs"]], request["cost"]["credits"], "API credits", "$" + request["cost"]["usd"])
# 1. Connect once (Claude Code; Cursor, VS Code, Claude Desktop: https://doitong.com/cs/developers/docs/mcp)
claude mcp add --transport http doitong-models https://api.doitong.com/v1/mcp \
--header "Authorization: Bearer $DOITONG_API_KEY"
# 2. Your agent calls the "run" tool with:
{
"model_id": "ltx-2.3-22b/extend-video",
"input": {
"prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
"video": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
}
}
Volejte model LTX-2.3 22B · Extend Video (ltx-2.3-22b/extend-video) prostřednictvím Doitong API. Dokumentace pro agenty: https://doitong.com/cs/developers/models/ltx-2.3-22b/extend-video.md
POST https://api.doitong.com/v1/run/ltx-2.3-22b/extend-video?wait=20
Authorization: Bearer $DOITONG_API_KEY
Content-Type: application/json
{
"prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
"video": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
}
Pokud je stav odpovědi "queued" nebo "running", dotazujte GET https://api.doitong.com/v1/requests/REQUEST_ID?wait=20, dokud nebude "succeeded"; soubory jsou v outputs[].url. POST https://api.doitong.com/v1/quote/ltx-2.3-22b/extend-video se stejným tělem vrátí přesnou cenu před spuštěním.
Soubory jako v příkladu: 0,18 $ 180 kreditů API vaše soubory se před spuštěním změří Spustit na této stránce
Váš nový API klíč. Zobrazuje se pouze nyní a už je vložen do kódu a do pole API klíč níže. Uchovávejte ho v tajnosti: nikdy ho nevkládejte do kódu, který se spouští v prohlížeči.
Zde se zobrazí váš první výsledek
Níže sestavte požadavek a spusťte ho pomocí svého API klíče. Výstupy se kopírují do našeho úložiště a uchovávají se navždy nebo 7 dne zdarma.
Sestavit požadavek
Ovládací prvky se generují ze schématu modelu. Kód a cena se aktualizují podle provedených změn.
/run/ltx-2.3-22b/extend-video?wait=20
cena → 0,18 $
# 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-2.3-22b/extend-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",
"video": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
}'
# 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 $DOITONG_API_KEY"
const API = "https://api.doitong.com/v1";
const headers = {
"Authorization": "Bearer " + process.env.DOITONG_API_KEY,
"Content-Type": "application/json",
};
// Run the model; wait up to 20 s for the finished result in the same call
let res = await fetch(API + "/run/ltx-2.3-22b/extend-video?wait=20", {
method: "POST",
headers,
body: JSON.stringify({
"prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
"video": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
}),
});
let request = await res.json();
if (!res.ok) throw new Error(request.error.code + ": " + request.error.message);
// Not finished yet: long-poll until it is
while (request.status === "queued" || request.status === "running") {
res = await fetch(API + "/requests/" + request.id + "?wait=20", { headers });
request = await res.json();
}
if (request.status !== "succeeded") throw new Error(JSON.stringify(request.error));
console.log(request.outputs.map((o) => o.url), request.cost.credits + " API credits ($" + request.cost.usd + ")");
import os
import requests
API = "https://api.doitong.com/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}
payload = {
"prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
"video": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
}
# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/ltx-2.3-22b/extend-video", params={"wait": 20}, json=payload, headers=headers)
request = r.json()
if not r.ok:
raise RuntimeError(request["error"]["code"] + ": " + request["error"]["message"])
# Not finished yet: long-poll until it is
while request["status"] in ("queued", "running"):
request = requests.get(API + "/requests/" + request["id"], params={"wait": 20}, headers=headers).json()
if request["status"] != "succeeded":
raise RuntimeError(request["error"])
print([o["url"] for o in request["outputs"]], request["cost"]["credits"], "API credits", "$" + request["cost"]["usd"])
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "run",
"arguments": {
"model_id": "ltx-2.3-22b/extend-video",
"input": {
"prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
"video": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
},
"wait_seconds": 20
}
}
}
Spustit tento požadavek
Váš klíč zůstává v tomto prohlížeči: odesílá se pouze do Doitong API a uloží se do localStorage jen tehdy, když zaškrtnete možnost Zapamatovat. Získat klíč API
O modelu LTX-2.3 22B · Extend Video
Přijme `video_url` a `prompt` a vygeneruje pokračování o `num_frames` snímcích (9 až 481). Volitelný `end_image_url` určuje, kde rozšíření skončí. `match_input_fps` zachová snímkovou frekvenci zdroje, `generate_audio` přidá zvuk a `video_size` má výchozí hodnotu auto. Výstup může být mp4, webm, mov nebo GIF.
Parametry
Odešlete buď kanonický název, nebo nativní název, ne oba. Kanonické názvy
promptpovinné
video_urlpovinné
video
end_image_urlvolitelné
end_image
num_framesvolitelné
video_sizevolitelné
generate_audiovolitelné
use_multiscalevolitelné
match_input_fpsvolitelné
fpsvolitelné
num_inference_stepsvolitelné
video_cfg_scalevolitelné
video_stg_scalevolitelné
video_rescaling_scalevolitelné
video_modality_scalevolitelné
audio_cfg_scalevolitelné
audio_stg_scalevolitelné
audio_rescaling_scalevolitelné
audio_modality_scalevolitelné
gradient_estimation_gammavolitelné
use_restart_samplingvolitelné
schedulervolitelné
accelerationvolitelné
camera_loravolitelné
camera_lora_scalevolitelné
negative_promptvolitelné
seedvolitelné
enable_prompt_expansionvolitelné
enable_safety_checkervolitelné
video_output_typevolitelné
video_qualityvolitelné
video_write_modevolitelné
distill_lora_first_pass_scalevolitelné
distill_lora_second_pass_scalevolitelné
extend_directionvolitelné
num_context_framesvolitelné
video_strengthvolitelné
audio_strengthvolitelné
end_image_strengthvolitelné
Parametry souborů přijímají veřejnou adresu https:// URL, data: URI do 10 MB nebo file_url nahraného souboru. Soubory
Výstup
{
"id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
"object": "request",
"model": "ltx-2.3-22b/extend-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": 180,
"usd": "0.18",
"charged": 180,
"refunded": 0
},
"input": {
"prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
"video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
},
"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,
"width": 1024,
"height": 768,
"fps": 1.0,
"duration": 5,
"num_frames": 1
},
"seed": 42,
"prompt": "A woman stands still amid a busy neon-lit street at night. The camera slowly dollies in toward her face as people blur past, their motion emphasizing her calm presence. City lights flicker and reflections shift across her denim jacket."
},
"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"
}
}
Pole výstupu
- video
- object {url, content_type, file_name, file_size, width, height, fps, duration, num_frames}Video vytvořené modelem.
- seed
- integerHodnota seedu použitá k inicializaci generování náhodných čísel.
- prompt
- stringPrompt použitý k vedení generování.
Další varianty LTX 2.3 22b
Další modely: Video na video
Pro AI agenty: tato stránka je ve formátu Markdown na adrese https://doitong.com/cs/developers/models/ltx-2.3-22b/extend-video.md. Všechny modely a návody: https://doitong.com/developers/llms.txt