Frequently Asked Questions
Everything you need to know about AI prompts, image generation, video creation, 3D modeling, audio tools, and prompt engineering best practices.
What is an AI prompt and how does prompt engineering work?
An AI prompt is a text instruction you give to an AI model to generate a specific output — such as an image, video, music, or text. Prompt engineering is the practice of crafting these instructions to get the best possible results. Good prompts are specific, descriptive, and include details about style, composition, lighting, mood, and technical parameters. The more precise your prompt, the closer the AI output will match your vision.
What is the best AI image generator in 2026?
The best AI image generator depends on your needs. Midjourney v6.1 excels at artistic, stylized images with stunning aesthetics. FLUX by Black Forest Labs offers exceptional prompt adherence and photorealism. DALL·E 3 is best for natural language prompts and text rendering. Stable Diffusion gives you full control with open-source customization. Ideogram leads in typography and text-in-image generation. Google Imagen 3 and Adobe Firefly are strong for commercial use. Try our Prompt Builder to compare results across models.
How do I write good prompts for Midjourney?
To write effective Midjourney prompts: (1) Start with your main subject and scene description. (2) Add style keywords like "cinematic", "oil painting", or "photorealistic". (3) Include lighting details such as "golden hour", "dramatic lighting", or "soft ambient light". (4) Use Midjourney parameters: --ar for aspect ratio (e.g., --ar 16:9), --s for stylization (0–1000), --q for quality. (5) Add negative prompts with --no to exclude unwanted elements. (6) Reference specific artists or art movements for style guidance. Our Midjourney Prompt Builder helps you construct these visually.
What is the difference between Midjourney, DALL·E, and Stable Diffusion?
Midjourney produces highly artistic, aesthetically polished images and is accessed through Discord or its web interface. DALL·E 3 (by OpenAI) understands natural language prompts exceptionally well, renders text in images accurately, and is integrated into ChatGPT. Stable Diffusion is open-source, runs locally on your computer, offers unlimited free generation, and supports extensive customization through LoRAs and fine-tuning. FLUX is a newer model with outstanding prompt adherence. Each has different strengths — use our model comparison pages to find the best fit.
How do I generate AI videos from text prompts?
AI video generation has advanced rapidly. Leading text-to-video models include: Sora and Sora 2 by OpenAI for cinematic quality, Runway Gen-3 Alpha and Gen-4 for professional workflows, Pika 2.5 for creative effects, Luma Dream Machine and Ray 2 for fast generation, and Kling 1.6 by Kuaishou for realistic motion. Write prompts describing the scene, camera movement, subject action, and visual style. Include duration and aspect ratio preferences. Our Video Prompt Builder helps you craft optimized video prompts.
Can AI generate 3D models and STL files for 3D printing?
Yes! Google Gemini 3 Deep Think can convert sketches, images, and text descriptions into 3D-printable STL files. It analyzes your input and generates watertight mesh geometry suitable for FDM and resin printing. Creative Fabrica Studio also offers a dedicated 3D Print Generator for creating figurines, toys, jewelry, and mechanical parts from text prompts. The technology eliminates the need for CAD software skills, making 3D design accessible to everyone.
What are the best free AI art generators?
Several high-quality AI image generators offer free tiers: Stable Diffusion is completely free and open-source (runs locally). FLUX offers free access through various platforms. Leonardo AI provides a daily free credit allowance. Ideogram offers free generations. Playground AI has a generous free tier. DALL·E 3 is available through free ChatGPT access (limited). Adobe Firefly offers a free tier with watermarked outputs. For the best free experience, Stable Diffusion with ComfyUI gives unlimited generations with no restrictions.
How do I create AI-generated music and sound effects?
AI music and sound effect generation is available through several platforms. Creative Fabrica Studio offers a Music Generator for creating full instrumental tracks and songs, a Sound Effect Generator for custom SFX, and a Text to Speech tool for AI voiceovers. When prompting for music, specify the genre, mood, tempo (BPM), instruments, and duration. For sound effects, describe the sound, its environment, and acoustic characteristics. These tools produce royalty-free audio for commercial use.
What is a negative prompt and how do I use it?
A negative prompt tells the AI what you do NOT want in the generated image. In Stable Diffusion, negative prompts are entered in a separate field and commonly include terms like "blurry, low quality, deformed, watermark, text, bad anatomy". In Midjourney, use the --no parameter (e.g., --no text, watermark). DALL·E 3 doesn't have a separate negative prompt field — instead, describe what you don't want in your main prompt (e.g., "without any text or logos"). Negative prompts significantly improve output quality.
How do I get photorealistic images from AI?
For photorealistic AI images: (1) Use models known for realism — FLUX, Midjourney v6.1, or Stable Diffusion with realistic checkpoints. (2) Include photography terms: camera model (Canon EOS R5), lens (85mm f/1.4), and settings (shallow depth of field). (3) Specify lighting: "natural window light", "golden hour", "studio Rembrandt lighting". (4) Add realism cues: "8K resolution", "RAW photo", "photorealistic", "hyperdetailed". (5) Use a high quality/detail setting. (6) Add specific skin and material textures for subjects.
What prompt style works best for logo design with AI?
For AI-generated logos: (1) Specify the style: "minimalist vector logo", "flat design", "line art logo", or "emblem style". (2) Describe the concept and symbol clearly. (3) Mention the color scheme: "monochrome", "blue and gold", or "gradient". (4) State it should work at small sizes and on different backgrounds. (5) Include "white background" or "transparent background" for clean extraction. (6) Use Ideogram or DALL·E 3 for logos with text — they handle typography best. Check our Logo Prompt Guide for dozens of examples.
How does the Promptomania Prompt Builder work?
Our Prompt Builder is a free visual tool that helps you construct optimized AI prompts without memorizing syntax. Select your AI model (Midjourney, DALL·E, Stable Diffusion, FLUX, etc.), then choose options for style, lighting, composition, mood, color palette, and camera angle. The builder assembles a complete prompt with the correct syntax for your chosen model. You can copy the prompt, share it via URL, or open it directly in Creative Fabrica Studio. It supports image, video, 3D, and audio models.
What image size and aspect ratio should I use for AI art?
Aspect ratio depends on your use case. For social media posts, use 1:1 (square) or 4:5 (Instagram). For desktop wallpapers and YouTube thumbnails, use 16:9 (widescreen). For phone wallpapers, use 9:16 (portrait). For print art, use 3:4 or 2:3. In Midjourney, set it with --ar 16:9. In Stable Diffusion, choose your width and height (e.g., 1344×768 for widescreen in SDXL). Higher resolutions generally produce more detail, but may require upscaling tools like Real-ESRGAN for print-quality output.
Can I use AI-generated images commercially?
Commercial usage rights vary by platform. Midjourney allows commercial use on paid plans. DALL·E 3 grants full commercial rights to generated images. Stable Diffusion (open-source) has no restrictions — you own what you generate. Adobe Firefly is specifically trained on licensed content for commercial safety. FLUX models vary by license (Pro vs open-weight). Always check the specific terms of service for your model. For maximum commercial safety, Adobe Firefly and models trained on licensed datasets are recommended.
How do I improve AI image quality and avoid artifacts?
To improve AI image quality: (1) Use quality-boosting keywords: "high quality", "highly detailed", "8K", "masterpiece". (2) Apply negative prompts to exclude artifacts: "blurry, deformed, low quality, bad hands, extra fingers". (3) Use appropriate CFG scale — too high causes over-saturation, too low causes incoherence (7-12 is usually optimal). (4) Generate at the model's recommended resolution. (5) Use upscalers for final output. (6) Iterate: generate multiple variations and refine your prompt. (7) Use img2img or inpainting to fix specific areas.
What are LoRAs and how do they work in Stable Diffusion?
LoRAs (Low-Rank Adaptation) are small fine-tuned model weights that modify Stable Diffusion's output to match a specific style, character, or concept. They're much smaller than full model checkpoints (typically 10-200MB vs 2-7GB). To use a LoRA, download it from Civitai or HuggingFace, place it in your models/loras folder, and reference it in your prompt with <lora:name:weight> syntax. Common uses include consistent character generation, specific art styles, product photography, and brand-consistent imagery.
How do I create consistent characters across multiple AI images?
Character consistency across images is challenging but possible: (1) In Midjourney, use --cref (character reference) with a reference image URL. (2) In Stable Diffusion, train a LoRA on 15-20 images of your character. (3) Use detailed, consistent character descriptions across prompts — specify exact hair color, eye color, clothing, and distinguishing features. (4) Use seed values to maintain some consistency. (5) IP-Adapter and similar tools help maintain visual identity. (6) For video models like Pika and PixVerse, use character lock features.
What is Creative Fabrica Studio and what can it do?
Creative Fabrica Studio is an all-in-one AI creative platform that provides access to multiple AI generation tools in one place. It includes image generation across multiple models, a music generator for creating royalty-free tracks, a sound effect generator, text-to-speech with natural-sounding voices, and a 3D print generator for creating STL files. All generated content is available for commercial use. Studio offers plans starting at $3.99/month with access to all tools.