Negative prompts list what to suppress — warped hands, flicker, watermarks, oversaturation. Handling differs by model: some have a dedicated field, others need inline 'avoid' phrasing, and some respond better to positive inversion.
Plumbing changes with model versions — verify against your current router.
VeoDedicated negative-prompt field — paste terms there, not in the main prompt.
KlingNo separate field — phrase as "avoid ..." or "without ..." inside the main prompt.
SoraResponds poorly to negatives — invert to positive framing instead (see cheat table).
Seedance / othersTest both — most accept inline "avoid" phrasing; some honor a trailing negative line.
Negative → positive cheat
For Sora-style models that dislike negatives, invert them:
no blurrazor-sharp, crisp focus
no flickersmooth stable motion
no extra fingersnatural anatomically-correct hands
no warpingconsistent solid forms
no oversaturationnatural balanced color
no clutterclean minimal background
Questions
What should I put in an AI video negative prompt?
Suppress common failures: warped hands, distorted faces, flicker, morphing, watermarks, oversaturation. Start from a universal negative and add per-scene terms.
Do all models use negative prompts the same way?
No. Some have a dedicated negative field, some need inline 'avoid' phrasing, and some respond better to positive inversion. Verify against your current model.