Which AI video models' docs advise against negative wording?
2 of the 24 models: Runway and SceneMixer. The other 22 do not, in the docs read. As of 2026-10-13.
| Model | Negative prompt | What the docs say |
|---|---|---|
| Runway | Advised against | The guide advises positive phrasing and avoiding negative prompts |
| SceneMixer | Advised against | Negative wording is advised against: the guide says to describe what is there, because a named absence tends to be drawn |
Inclusion rule. Models whose own docs meet the condition in the question. Order. Alphabetical by model name.
1Why it matters
Several models take a negative prompt field; some guides say the opposite, that naming what should not appear tends to put it on screen. Knowing which camp a model's docs are in decides how a shot list is phrased.
2From the docs
Use positive phrasing and avoid negative prompts
Runway, Gen-4 video prompting guide
The fix is always the same: say what is there.
SceneMixer, say what is there guide
3The rest of the register
Not matching: Adobe Firefly, Google Veo, Grok Imagine, Higgsfield, HunyuanVideo 1.5, Kling AI, Leonardo Motion 2.0, LTX, LTX Studio, Luma Dream Machine, Midjourney, MiniMax Hailuo, Moonvalley Marey, Open-Sora 2.0, Pika, PixVerse, Seedance, SkyReels, Sora, Step-Video-TI2V, Vidu and Wan.
- TipsThe guide advises positive phrasing and avoiding negative prompts
- Turning negatives into positivesNegative wording is advised against: the guide says to describe what is there, because a named absence tends to be drawn
- Help pages read; no negative prompt field is describedNot described in the docs read (2026-09-25)
- Negative promptsNegative prompts list elements that should not appear in the video
- Documentation read; no negative prompt field is listedNot described in the docs read (2026-09-25)
- Camera controls page read; no negative prompt is describedNot described in the docs read (2026-09-25)
- Command line argumentsThe inference script takes a negative prompt, empty by default
- VIDEO 3.0 Omni API read; no negative prompt field is listedNot described in the docs read (2026-09-25)
- Negative PromptingA negative prompt, switched on under Advanced Settings; the help advises writing what to avoid without no or without
- Prompting guide read; no negative prompt field is describedNot described in the docs read (2026-09-25)
- Blog and editor page read; no negative prompt is describedNot described in the docs read (2026-09-25)
- API docs read; no negative prompt field is listedNot described in the docs read (2026-09-25)
- Video documentation read; the video parameters list no negative promptNot described in the docs read (2026-09-25)
- API reference read; no negative prompt field is listedNot described in the docs read (2026-09-25)
- Marey page read; no negative prompt is describedNot described in the docs read (2026-09-25)
- Repository read; no negative prompt is describedNot described in the docs read (2026-09-25)
- FAQ read; no negative prompt is describedNot described in the docs read (2026-09-25)
- Text-to-video reference read; no negative prompt field appears in the exampleNot described in the docs read (2026-09-25)
- Whole pageThe API reference asked for a sign-in and showed no text on the day read
- Repository read; no negative prompt is describedNot described in the docs read (2026-09-25)
- Prompting guide read; no negative prompt field is describedNot described in the docs read (2026-09-25)
- Repository read; no negative prompt is describedNot described in the docs read (2026-09-25)
- API reference read; no negative prompt field is listedNot described in the docs read (2026-09-25)
- Use a negative promptA negative_prompt field excludes elements from the video