kling-3-0

by agentspace-so

Kling 3.0 video generation on RunComfy. Kling 3.0 (also called Kling V3.0) is Kuaishou Technology's third-generation multi-shot video model with native synchronized audio and consistent character identity across shots. This skill covers all six Kling 3.0 endpoints, spanning three rendering tiers (Standard, Pro, 4K) and two modes (text-to-video, image-to-video). Calls runcomfy run kling/kling-3.0/ / through the local RunComfy CLI. Triggers on "kling", "kling 3.0", "kling v3", "kling pro",... npx skills add https://github.com/agentspace-so/runcomfy-agent-skills --skill kling-3-0 Download ZIPGitHub28

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.

Endpoint Anchor Resolution Rate (no audio) Rate (with audio) kling/kling-3.0/standard/text-to-video Kling 3.0 Standard t2v up to 1080p $0.084/s $0.126/s kling/kling-3.0/standard/image-to-video Kling 3.0 Standard Image to Video up to 1080p $0.084/s $0.126/s kling/kling-3.0/pro/text-to-video Kling V3.0 Pro Text-to-Video 1080p $0.112/s $0.168/s kling/kling-3.0/pro/image-to-video Kling V3.0 Pro Image-to-Video 1080p $0.112/s $0.168/s kling/kling-3.0/4k/text-to-video Kling V3.0 4K Text-to-Video 3840x2160 $0.42/s flat $0.42/s flat kling/kling-3.0/4k/image-to-video Kling V3.0 4K Image-to-Video 3840x2160 $0.42/s flat $0.42/s flat

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.

Input schema (shared across all 6 Kling 3.0 endpoints)

Field Type Required Default Notes prompt string yes - Text description of scene, motion, camera, atmosphere. Multi-segment prompts supported via prompt_segments for scene transitions in one Kling 3.0 generation. image_url string yes (i2v only) - Source image for Kling 3.0 i2v. HTTPS URL. JPEG/PNG/WebP. tail_image_url string no (i2v only) - Optional ending image for controlled start-to-end frame transition on Kling 3.0 i2v. negative_prompt string no - Elements to exclude from the Kling 3.0 output. duration int no 5 3-15 seconds per Kling 3.0 generation. aspect_ratio enum no 16:9 16:9, 9:16, 1:1, 4:3, 3:4, 21:9. cfg_scale float no 0.5 Prompt guidance strength. Higher = stricter adherence to prompt. generate_audio bool no false Enable Kling 3.0 in-pass synchronized audio. Adds cost on Standard and Pro tiers; flat-rate on 4K. seed int no - Reproducibility for Kling 3.0 variant testing.

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": " ",
 "duration": 5,
 "aspect_ratio": "16:9"
 }' \
 --output-dir 

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

runcomfy run kling/kling-3.0/standard/image-to-video \
 --input '{
 "prompt": " ",
 "image_url": "https://.../source.jpg",
 "duration": 5
 }' \
 --output-dir 

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

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

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

runcomfy run kling/kling-3.0/pro/image-to-video \
 --input '{
 "prompt": " ",
 "image_url": "https://.../subject.jpg",
 "duration": 8,
 "generate_audio": true
 }' \
 --output-dir 

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

runcomfy run kling/kling-3.0/4k/text-to-video \
 --input '{
 "prompt": " ",
 "duration": 10,
 "aspect_ratio": "16:9",
 "generate_audio": true
 }' \
 --output-dir 

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": " ",
 "image_url": "https://.../source-4k.jpg",
 "duration": 10,
 "generate_audio": true
 }' \
 --output-dir 

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-shot in one Kling 3.0 generation. A single Kling 3.0 prompt can describe a sequence of shots. Number them: "Shot 1: wide of the cafe at dusk. Shot 2: medium close-up of the barista. Shot 3: tight on the espresso pour." Kling 3.0 will preserve identity (face, wardrobe, props) across the shots.

Identity anchors for i2v. When using Kling 3.0 i2v, restate what should remain stable: "preserve the subject's face, pose, and clothing; only the camera moves and the background changes."

tail_image_url for controlled endings. On Kling 3.0 i2v, supply a tail image to lock the final frame. Kling 3.0 will interpolate motion from source to tail.

generate_audio: true for one-pass dialogue. Describe what Kling 3.0 should produce in audio: "warm friendly tone, English voiceover" or "city ambience, distant traffic, no dialogue." Audio adds cost on Standard / Pro; flat on 4K.

cfg_scale tuning. Default 0.5 works for most Kling 3.0 prompts. Raise to 0.7-0.9 for strict prompt adherence on stylized output. Lower to 0.3-0.4 for natural motion when the prompt is loose.

Anti-patterns:

• Conflicting style cues in one Kling 3.0 prompt -> simplify, pick one or two style anchors.

• Asking for greater than 15 seconds in one Kling 3.0 call -> 422 error; segment the script and stitch.

• Aspect ratios outside the supported set -> rejected.

• For Kling V3.0 4K, demanding aggressive multi-shot story plus 15s plus dialogue plus 6 cuts -> Kling 3.0 will deliver, but cost climbs to about $6.30 per generation. Validate with Standard first.

Where Kling 3.0 shines

Use case Best Kling 3.0 endpoint Cinematic 1080p brand stories with consistent characters Kling V3.0 Pro (t2v or i2v) Native 4K hero films and big-screen cinematic Kling V3.0 4K (t2v or i2v) Cheap iteration, social-first shorts, A/B variants Kling 3.0 Standard t2v Animating brand assets, product photos, character art Kling 3.0 Standard i2v or Kling V3.0 Pro i2v Multi-shot ads with synchronized dialogue in one pass Kling V3.0 Pro with generate_audio: true Premium 4K finished masters with native audio Kling V3.0 4K with generate_audio: true (flat rate)

Sample Kling 3.0 prompts

Kling 3.0 cinematic multi-shot (Pro tier recommended):

Cinematic multi-shot of a young American couple celebrating their
anniversary at a candlelit rooftop restaurant. Shot 1: wide of the
city skyline at golden hour. Shot 2: medium two-shot, the couple
toasting. Shot 3: tight on the woman's smile, soft bokeh, warm fill
light. Subtle ambient string music, gentle wind, distant traffic.

Kling 3.0 i2v (animate a portrait, 4K tier):

Gentle camera dolly-in on the subject from the source image. Subtle
breathing motion, identity-stable features, soft natural light,
shallow depth of field. Background: warm golden-hour glow with a
slow drift of dust motes. No dialogue, only ambient room tone.

Kling 3.0 vertical short (Standard tier, 9:16):

9:16 vertical. A barista in a black apron pulls a single espresso
shot, steam rising into morning sun, rich crema slowly forming.
Close-up handheld, shallow depth of field, warm cafe ambience and
the hiss of the steam wand.

Exit codes

The runcomfy CLI uses sysexits-style codes:

code meaning 0 Kling 3.0 generation succeeded 64 bad CLI args 65 bad input JSON for Kling 3.0 / schema mismatch 69 upstream 5xx 75 retryable: timeout / 429 77 not signed in or token rejected

Full reference: docs.runcomfy.com/cli/troubleshooting.

How it works

• The skill picks one of six Kling 3.0 endpoints based on the user's tier (Standard / Pro / 4K) and mode (t2v / i2v) intent.

• It invokes runcomfy run kling/kling-3.0/<tier>/<mode> with a JSON body matching the schema.

• The CLI POSTs to the RunComfy Model API with the user's bearer token.

• The Model API returns a request_id; the CLI polls every 2 seconds until the Kling 3.0 generation finishes.

• On terminal status, the CLI fetches the Kling 3.0 result and downloads any .runcomfy.net / .runcomfy.com URL into --output-dir.

• Ctrl-C cancels the in-flight Kling 3.0 request before billing.

Security & Privacy

• Token storage: runcomfy login writes the API token to ~/.config/runcomfy/token.json with mode 0600. Set RUNCOMFY_TOKEN env var in CI / containers.

• Input boundary: the Kling 3.0 prompt is passed as JSON via --input. The CLI does not shell-expand. No shell-injection surface.

• Third-party content: image URLs you pass are fetched by the RunComfy server, not by the CLI on your machine. Treat external URLs as untrusted; image-based prompt injection is a known risk for any video model that accepts image inputs.

• Outbound endpoints: only model-api.runcomfy.net (request submission) and *.runcomfy.net / *.runcomfy.com (download whitelist).

• Generated-file size cap: the CLI aborts any single download greater than 2 GiB to prevent disk-fill from a runaway Kling 3.0 4K output.