Kling 2.5 Turbo API

Introduction

Kling 2.5 Turbo Image to video animates an opening frame into a 5 or 10 second clip at 1080p, with a real audio track generated in the same pass. Add an optional closing frame (last_image_url) to pin the ending; the output aspect ratio follows whatever frame you send in, both JPEG or PNG only.

Choose a Kling 2.5 Turbo mode by starting material

Key features

An optional closing frame

last_image_url is not required, but when it's set the clip is built to land on that exact frame instead of wherever the model decides to stop. Nothing pins the middle of the clip, so keep the two frames close in light, pose and framing for the smoothest result.

Sound arrives with the picture

The audio track is generated in the same pass as the video - there is no field to mute it. Write what the scene should sound like in the prompt, the same place you write the action.

Request parameters

Pricing

Prices are in credits, the same credits you use on the website (1 credit = $0.01). The hold is taken when the task is accepted and settled to the actual charge when it finishes; failed tasks are refunded.

For an exact number before you run, send the same body to POST /jobs/quote.

Use cases

Bring an approved frame to life

Start from a still you already like - a portrait, a product shot, a piece of concept art - and describe only what happens next; the frame itself doesn't change.

Chain frame to frame across a longer scene

Send the last frame of one approved clip as the opening frame of the next, and use last_image_url on this new clip to land on a specific pose - useful for stringing several 5 or 10 second clips into one continuous scene.

Prompt guide & pro tips

Describe only what changes

The opening frame already sets the subject, wardrobe and setting - the prompt only needs to say what happens next: the action, the camera move, and what it sounds like.

Keep two frames close when using last_image_url

A closing frame that differs wildly in pose, light or framing from the opening frame gives the model more work to reconcile in the space between, and the middle can wander on a 10-second clip. Keep both frames close and let the prompt carry the motion between them.

Write the sound in the same sentence as the motion

Because audio is generated alongside the picture on every clip, describe what a movement sounds like right where you describe the movement itself - footsteps, fabric, wind, distant crowd noise - rather than treating sound as an afterthought at the end of the prompt.

API quick start

Call the Kling 2.5 Turbo API in three steps

1. Create an API key. Sign in to PopNow and create a key in the API console. Keys start with sk-popnow- and use the same credits as the website.
2. Send the request. POST /jobs/createTask with model kling/2.5-turbo/image-to-video and an input object that follows the parameter table. The response returns a task ID straight away.
3. Get the result. Poll GET /jobs/recordInfo with the task ID, or pass a callBackUrl and we post the result to it. Download the output links when the task succeeds.

# 1. Create the task. Keep the Idempotency-Key if you retry after a network error.
export IDEMPOTENCY_KEY="$(uuidgen)"
curl -X POST https://api.popnow.ai/api/v1/jobs/createTask \
  -H "Authorization: Bearer $POPNOW_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $IDEMPOTENCY_KEY" \
  -d '{
  "model": "kling/2.5-turbo/image-to-video",
  "input": {
    "prompt": "A slow aerial shot drifting over a misty pine forest at sunrise",
    "image_url": "https://media.popnow.ai/influencer/examples/marco.webp",
    "duration_seconds": 5
  }
}'

# 2. Copy data.taskId from the response, then poll until state is succeeded, failed, canceled or expired.
TASK_ID="TASK_ID_FROM_RESPONSE"
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=$TASK_ID" \
  -H "Authorization: Bearer $POPNOW_API_KEY"

Replace the prompt and any links with your own. The API tab has the response, polling and callback reference.

Kling 2.5 Turbo API questions

All Kling models

Kling 3.0 Turbo runs Kling's newer engine with 3 to 15 second clips, for a bit more.

• Kling 3.0 API4K clips, multi-shot cuts and motion controlFrom 51 credits for a 5-second clip
• Kling O3 APIKling’s unified model: create, animate, reference and edit up to 4KFrom 51 credits for a 5-second clip
• Kling 3.0 Turbo APIFaster Kling 3.0 with sound on every clipFrom 84 credits for a 5-second clip
• Kling Avatar 2.0 APIA portrait that speaks or sings your audio, up to 5 minutesFrom 7.68 credits per second
• Kling 2.6 API1080p clips with optional sound and motion controlFrom 52 credits for a 5-second clip
• Kling 2.5 Turbo API1080p clips with a soundtrack on every takeFrom 42 credits for a 5-second clip
• Kling 2.1 Master APISilent 1080p clips with fine prompt controlFrom 162 credits for a 5-second clip
• Kling 2.1 APIAnimate a frame at 720p or 1080p, with an optional end frameFrom 27 credits for a 5-second clip

Other video APIs

• MiniMax H3 APIExpressive clips with audio, up to 2KFrom 28 credits for a 5-second clip
• Seedance 2.5 APIByteDance's newest: 30-second clips with native audioFrom 56 credits for a 5-second clip
• Vidu Q4 Preview APIUp to 4K clips with sound and spoken dialogueFrom 34 credits for a 5-second clip
• Wan 3.0 APIUp to 30-second clips with synced audioFrom 34 credits for a 5-second clip
• MiniMax H3 Max APIFast clips with ambience, effects and musicFrom 38 credits for a 5-second clip
• LTX 2.5 APILong 20-second takes up to 4K with a soundtrackFrom 68 credits for a 5-second clip

More about Kling 2.5 Turbo

Try it

Kling 2.5 Turbo AI Video Generator onlineCreate videos with Kling 2.5 Turbo in PopNow

Docs

Kling 2.5 Turbo model ID and input schema in the API docsPopNow API quickstart: your first request in five minutesImage to video guide for the PopNow APIWebhooks: get Kling 2.5 Turbo results without polling