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Fotor

T1CLIP-Based

One-click style and enhancement tools.

Prompt Style
Weighted keywords (term:1.2)
Negative Prompts
Separate field
Dedicated exclusion field
Sweet Spot
60 characters
Character Range
50–400 ideal · 500 max
Architecture
clip-based
Country
CN

How Fotor reads prompts

Fotor is classified as CLIP-Based (T1)weighted keywords with clip tokenisation. Exposes full SD (term:1.3) weight syntax. Separate negative prompt field. CLIP 77-token limit. Quality boosters essential.

Prompt tips

Fotor exposes full Stable Diffusion weight syntax. Use CLIP-style tags with quality boosters.

Why prompt optimisation matters

Prevents token truncation and ensures weight syntax compliance. Promagen's Prompt Lab automatically formats your selections into Fotor's native prompt structure.

Negative prompt support

Fotor has a separate negative prompt field — you can specify elements to exclude in a dedicated input. This is the most powerful form of negative prompt support.

Full negative prompt support guide →

Platform notes

Full SD (term:1.3) weight syntax. CLIP 77-token limit. Quality boosters essential.

Example prompt

(masterpiece:1.3), (best quality:1.2), samurai, fighting pose, (cinematic lighting:1.1), highly detailed armor

Frequently asked questions

What is the character limit for Fotor?

Fotor accepts prompts up to 500 characters. The ideal writing range is 50–400 characters (around 60 characters is the sweet spot where the platform produces its best results).

Does Fotor support negative prompts?

Yes. Fotor has a separate negative prompt field where you can specify elements to exclude from the generated image.

How should I write prompts for Fotor?

Fotor uses CLIP-Based prompt format (T1). Weighted keywords with CLIP tokenisation. Fotor exposes full Stable Diffusion weight syntax. Use CLIP-style tags with quality boosters.

Other CLIP-Based platforms

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

Try Fotor in Prompt Lab →

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