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Luma AI

T3Natural Language

Photorealistic AI image and video generation with Dream Machine.

Prompt Style
Conversational sentences
Negative Prompts
Not supported
Auto-converted to positive
Sweet Spot
150 characters
Character Range
150–350 ideal · 875 max
Architecture
proprietary
Country
US

How Luma AI reads prompts

Luma AI is classified as Natural Language (T3)conversational sentences, no special syntax. Video-first platform. Supports @style keyword for style references and loop keyword for looping clips. No negative prompts. Conversational natural language preferred. Excels at photorealistic motion.

Prompt tips

Luma Photon excels at photorealism. Natural language descriptions outperform keyword lists. Specify lighting and camera details.

Negative prompt support

Luma AI does not support negative prompts. Promagen converts exclusion requests into positive reinforcement for this platform — for example, "blurry" becomes "sharp focus".

Full negative prompt support guide →

Example prompt

A close-up portrait in natural light, shallow depth of field, soft bokeh background, photorealistic skin texture

Frequently asked questions

What is the character limit for Luma AI?

Luma AI accepts prompts up to 875 characters. The ideal writing range is 150–350 characters (around 150 characters is the sweet spot where the platform produces its best results).

Does Luma AI support negative prompts?

No. Luma AI does not support negative prompts. Promagen converts exclusion requests into positive reinforcement for this platform (for example, "blurry" becomes "sharp focus").

How should I write prompts for Luma AI?

Luma AI uses Natural Language prompt format (T3). Conversational sentences, no special syntax. Luma Photon excels at photorealism. Natural language descriptions outperform keyword lists. Specify lighting and camera details.

Other Natural Language platforms

These platforms share the same prompt architecture — prompts written for one will generally work well on the others.

Try Luma AI in Prompt Lab →

Platform capabilities verified against live UI and API documentation. Last verified: 2026-03-29.