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Kling O3 Pro (I2V)

Kling O3 Pro image-to-video. Wider duration range (3-15s), native audio, multi-shot prompts. Pro-tier quality bump over O3 Standard.

Kling guideVerified

Kuaishou's video model. The strongest motion in the open API ecosystem — fluid human bodies, action choreography, dramatic camera moves. v3.0 Pro is the flagship.

Strengths
  • Best-in-class human and animal motion fidelity — runners, dancers, fighters look anatomically right.
  • Action choreography: martial arts, sports, combat scenes hold together over the full clip.
  • Camera moves: smooth dollies, crane shots, orbits without warping the subject.
  • Native multi-shot mode in v3 (the API exposes it as multi_prompt).
  • Long context for prompts — accepts dense scene descriptions without losing the lead subject.
Weaknesses
  • Text rendering inside images is unreliable — avoid signs / readable writing.
  • Hands and fingers can still distort on fast motion.
  • Output durations capped at ~10s per single clip (use multi-shot to extend).
  • Slow vs. fast tiers vary a lot in quality; Standard is often blurry compared to Pro.
Best for
  • Action sequences, fight choreography, sports highlights
  • Anime / OVA-style narrative shots (pairs well with the Anime Styles panel)
  • Music video moments — performers, dancers, crowd shots
  • Camera-heavy cinematic establishing shots
Avoid for
  • Tight close-ups with text (logos, signs, captions)
  • Long single-shot videos beyond ~10s — use multi-shot instead
Prompting tips
  • Lead with the subject + action, then describe the camera move, then the lighting and mood.
  • Be explicit about motion verbs — "runs", "jumps", "pivots", "orbits" — Kling rewards specificity.
  • For consistent characters across shots, repeat the same description verbatim each shot.
  • Use "cinematic" / "35mm anamorphic" / "golden hour" trailing tags — Kling respects them.
  • Avoid abstract direction ("epic", "amazing") — replace with concrete cinematography.
Parameter tips
  • Duration: 5s is the sweet spot. 10s costs a lot more and often introduces drift.
  • Aspect ratio: 16:9 is what Kling was trained on; 9:16 works but loses some quality.
  • Pro vs Standard: always pick Pro for finals. Use Standard only for cheap drafts.
Style packs — paste before any prompt
90s OVA cell-shaded

anime cel-shaded, 90s OVA aesthetic, hand-drawn line art, soft halation, 35mm grain

Cinematic noir

noir high contrast, chiaroscuro lighting, anamorphic lens, smoke and rain, desaturated teal-orange

Parameters
  • image_url
    string
    No description.
  • end_image_url
    string
    No description.
  • multi_prompt
    array
    Sequence of shots, each with its own prompt + duration.
  • duration
    string
    No description.
    3456789101112131415
    default: 5
  • generate_audio
    boolean
    No description.
    default: false
  • shot_type
    string
    No description.
    customizeintelligent
    default: customize
You'll need
  • A text prompt
  • Start frame
  • End frameoptional
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