Kling 3.0 Prompting Cheat Sheet

The one video model with a real negative field — around 2,500 characters, and capacity is not permission.

TL;DR — THE SHORT VERSION

A real, separate negative prompt field — roughly 2,500 characters, alongside 2,500 for the prompt.
Do not write "no". The field already treats entries as exclusions.
Short beats long. Around five focused terms, aimed at glitches you have actually seen.
Released 7 February 2026 — 3.0 added native audio and longer durations.
Stable Diffusion habits transfer here more cleanly than to any other video model.

PARTLY DOCUMENTED

Field behaviour and limits are vendor-documented; the tuning advice is established practice.

The formula

Subject + action + setting + camera + style · negatives in the separate field

Template:

PROMPT: [subject] [action] in [setting], [camera behaviour], [lighting and style].
NEGATIVE FIELD: [term, term, term, term, term]

Worked example:

PROMPT: A ceramicist centres clay on a wheel in a north-facing studio at dusk, slow push-in, window light only, documentary realism.
NEGATIVE FIELD: blurry face, extra limbs, jittery motion, text overlay, watermark

Breakdown — what each part does

Prompt field

Subject, action, setting, camera, style — conventional structure, up to about 2,500 characters.

Negative field

Separate box. Plain terms, comma-separated. It is read as exclusions automatically.

Physics

Kling's documented strength is physically plausible motion — water, fire, fabric, impact. Prompt for it explicitly when it matters.

Does it take a negative prompt?

Yes — a dedicated field of roughly 2,500 characters.YES

Plain terms only. Do not prefix with "no" — the field already means exclude. Target artifacts you have actually observed: blurry faces, extra limbs, jittery motion, text overlays, watermarks. Around five terms is the reported sweet spot; the character limit is capacity, not an invitation.

What not to do

Do not write "no" before terms in the negative field.✕

Do not fill 2,500 characters because they are available — a long list dilutes focus.✕

Do not put exclusions in the main prompt when a dedicated field exists.✕

Do not list every fear; list the glitches your own output actually produced.✕

SOURCING NOTE

Kling's API documentation covers the fields and limits; the practical guidance here (five-term sweet spot, targeting observed artifacts) comes from published prompting guides rather than a vendor style manual. Field behaviour and limits are documented; the tuning advice is practice.

The checklist

Before you send it:

1 — Negative terms in the separate field, not the prompt?□

2 — No "no" prefixes?□

3 — Around five terms, not twenty?□

4 — Each term targeting an artifact you actually saw?□

5 — Physics named explicitly if it matters to the shot?□

SOURCE

Kling API documentation and published prompting guides. Model release: Kuaishou, 7 Feb 2026. Checked 25 Aug 2026.

Model versions and vendor documentation both move. Re-read the source before relying on a specific number. Errors are logged at corrections.

Every other sheet in this set: all model cheat sheets.