Kling 2.1 Master Text to Video API

klingai/v2.1-master-text-to-video
Kling 2.
Output
$0.364 / sec (variable)

How to use Kling 2.1 Master Text to Video API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to klingai/v2.1-master-text-to-video.
import requests, time

headers = {"Authorization": "Bearer " + AIMLAPI_KEY}
job = requests.post(
    "https://api.aimlapi.com/v2/video/generations",
    headers=headers,
    json={
      "model": "klingai/v2.1-master-text-to-video",
      "prompt": "A serene timelapse of clouds over a mountain range"
    },
).json()
gid = job["id"]

while True:
    res = requests.get(f"https://api.aimlapi.com/v2/video/generations?generation_id={gid}", headers=headers).json()
    if res.get("status") in ("completed", "error"):
        break
    time.sleep(5)
print(res["video"]["url"])
const headers = {
  Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
  "Content-Type": "application/json",
};
const job = await (await fetch("https://api.aimlapi.com/v2/video/generations", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "model": "klingai/v2.1-master-text-to-video",
    "prompt": "A serene timelapse of clouds over a mountain range"
  }),
})).json();

let res;
do {
  await new Promise((r) => setTimeout(r, 5000));
  res = await (await fetch(`https://api.aimlapi.com/v2/video/generations?generation_id=${job.id}`, { headers })).json();
} while (!["completed", "error"].includes(res.status));
console.log(res.video.url);
# submit the generation — the response contains the job "id"
curl -X POST https://api.aimlapi.com/v2/video/generations \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"klingai/v2.1-master-text-to-video","prompt":"A serene timelapse of clouds over a mountain range"}'

# then poll until status is "completed" — video.url holds the result
curl "https://api.aimlapi.com/v2/video/generations?generation_id={id}" -H "Authorization: Bearer $AIMLAPI_KEY"

OpenAI-compatible — swap the base URL and it works with your existing SDK.

Kling 2.1 Master Text to Video API Pricing

TypePrice
Output
$0.364 / sec (variable)

Kling 2.1 Master Text to Video Benchmarks

BenchmarkScoreWhat it measuresSourceRetrieved
Text-to-Video Arena
1138 (Elo)
Human preference Elo from blind pairwise comparisons of generated videos, measured independently by Artificial AnalysisSourceJuly 16, 2026

Kling 2.1 Master Text to Video vs other models

ModelInputOutputContextBest for
$0.364 / sec (variable)
Video generation
$0.26 / sec (variable)
Video generation
$0.13 / sec (variable)
Video generation
$1.95 / 1M tokens
$22.75 / 1M tokens
Video generation
$0.09243–$1.014 / sec (by resolution)
Cinematic video + native audio

Frequently asked questions

Kling 2.1 Master Text to Video takes text as input and returns video.

Kling 2.1 Master Text to Video is priced at $0.364 / sec (variable).

Kling 2.1 Master Text to Video is billed per generation — a fixed charge per output rather than by prompt length.

Kling 2.1 Master Text to Video was built by Kling AI.

Use klingai/v2.1-master-text-to-video as the model id on AI/ML API.

Yes. Kling 2.1 Master Text to Video is served through AI/ML API, so the same key and endpoint format used for other models applies.

No, this model only supports text-to-video generation.

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