Kling 3.0 - Pro Pack on RunComfy

runcomfy.com · docs · GitHub

Kling 3.0 is Kuaishou Technology's third-generation cinematic video model. This skill covers all six Kling 3.0 rendering endpoints on RunComfy: three quality tiers (Standard, Pro, 4K) across two modes (text-to-video and image-to-video).

What Kling 3.0 is

Kling 3.0 is the V3 generation of the Kling video model. It produces multi-shot cinematic video with synchronized native audio, consistent character identity across shots, and physics-aware motion. Compared to Kling 2.x, Kling 3.0 supports longer clips (up to 15 seconds), native 4K output on the 4K tier, and a unified multi-prompt segment system that lets one Kling 3.0 generation contain several distinct scenes with controlled transitions.

Kling 3.0 ships in three rendering tiers on RunComfy, each available as text-to-video or image-to-video:

• Standard - cheapest tier, up to 1080p output. Use Kling 3.0 Standard for fast iteration, previews, A/B variants, social shorts.
• Pro - highest fidelity at 1080p. Use Kling V3.0 Pro for hero-quality 1080p clips where motion realism and identity preservation matter most.
• 4K - native 3840x2160 output. Use Kling V3.0 4K for high-resolution brand films, big-screen cinematic sequences, and finished masters at native resolution.

All three tiers share the same Kling 3.0 multi-shot architecture. Tiers differ in resolution ceiling, motion-fidelity budget, and pricing.

The 6 Kling 3.0 endpoints

Each endpoint corresponds to one (tier, mode) pair. All six endpoints share the same Kling 3.0 base model.

The 4K tier prices the same regardless of audio. Standard and Pro tiers charge ~50% more per second when audio is enabled.

When to pick which Kling 3.0 tier

Pick a Kling 3.0 tier based on the output's role in the pipeline.

• Drafts, previews, social shorts, A/B variants: Kling 3.0 Standard. Cheapest. Quality is fine for everything except hero shots.
• Hero 1080p clips, ad creative, talking heads with high motion fidelity: Kling V3.0 Pro. About 33% more expensive than Standard for noticeably tighter motion and identity hold at the same resolution.
• 4K brand films, big-screen cinematic, finished masters: Kling V3.0 4K. Native 3840x2160 (no upscale step). Flat $0.42/s makes budgeting predictable. Use only when the output truly needs 4K - it is roughly 5x the cost of Standard.

Pick the mode based on whether you have a source image:

• Text-to-Video (t2v): prompt only, Kling 3.0 generates the look from scratch. Use Kling 3.0 t2v for novel scenes, brand new compositions, environments without an existing reference.
• Image-to-Video (i2v): prompt + source image, Kling 3.0 animates the image. Use Kling 3.0 i2v when you have an exact reference (face, product, scene) that must survive into the output.

If the user explicitly asked for Kling 3.0, Kling V3.0, Kling Pro, or Kling 4K, route to this skill regardless.

Prerequisites

1. RunComfy CLI: npm i -g @runcomfy/cli
2. RunComfy account: runcomfy login opens a browser device-code flow.
3. CI / containers: set RUNCOMFY_TOKEN=<token> instead of runcomfy login.
4. For i2v endpoints: a publicly fetchable source image URL (HTTPS, JPEG/PNG/WebP).

Input schema (shared across all 6 Kling 3.0 endpoints)

How to invoke each Kling 3.0 endpoint

Kling 3.0 Standard text-to-video (cheapest 1080p draft):

runcomfy run kling/kling-3.0/standard/text-to-video \
  --input '{
    "prompt": "<Kling 3.0 prompt>",
    "duration": 5,
    "aspect_ratio": "16:9"
  }' \
  --output-dir <absolute/path>

Kling 3.0 Standard image-to-video (animate a still):

runcomfy run kling/kling-3.0/standard/image-to-video \
  --input '{
    "prompt": "<motion description for Kling 3.0 i2v>",
    "image_url": "https://.../source.jpg",
    "duration": 5
  }' \
  --output-dir <absolute/path>

Kling V3.0 Pro text-to-video (highest 1080p fidelity):

runcomfy run kling/kling-3.0/pro/text-to-video \
  --input '{
    "prompt": "<Kling 3.0 Pro prompt>",
    "duration": 8,
    "aspect_ratio": "16:9",
    "generate_audio": true
  }' \
  --output-dir <absolute/path>

Kling V3.0 Pro image-to-video (hero animation from source image):

runcomfy run kling/kling-3.0/pro/image-to-video \
  --input '{
    "prompt": "<motion description for Kling V3.0 Pro i2v>",
    "image_url": "https://.../subject.jpg",
    "duration": 8,
    "generate_audio": true
  }' \
  --output-dir <absolute/path>

Kling V3.0 4K text-to-video (native 4K cinematic):

runcomfy run kling/kling-3.0/4k/text-to-video \
  --input '{
    "prompt": "<Kling V3.0 4K prompt>",
    "duration": 10,
    "aspect_ratio": "16:9",
    "generate_audio": true
  }' \
  --output-dir <absolute/path>

Kling V3.0 4K image-to-video (4K animation of a reference image):

runcomfy run kling/kling-3.0/4k/image-to-video \
  --input '{
    "prompt": "<motion description for Kling V3.0 4K i2v>",
    "image_url": "https://.../source-4k.jpg",
    "duration": 10,
    "generate_audio": true
  }' \
  --output-dir <absolute/path>

The CLI submits the Kling 3.0 request, polls every 2s, fetches the result, and downloads any *.runcomfy.net / *.runcomfy.com URL into --output-dir.

Prompting Kling 3.0 - what works

Kling 3.0 responds to specific prompting patterns better than naive prose.

Lead with motion and camera language. Kling 3.0 reads "wide shot, slow push-in", "tracking shot, low angle", "handheld follow" as real directives. Front-load these.

**Multi-s