admin You can paste the same prompt into four AI image generators and get four very different pictures. That isn’t a bug. Each model was trained differently, reads language differently and gives you different controls. Once you know those differences, one good description, such as the one an image to prompt generator writes for you, can be adapted to any tool in a minute.
Why one prompt gives four different images
Every generator turns your words into numbers with a text encoder, then uses those numbers to guide image creation. Older encoders mostly pick up keywords. Newer ones understand full sentences, relationships (“a cat on top of a red box”) and even text inside images. Each model also has its own “house style” learned from its training images, and each product adds its own settings on top.
So the same prompt changes in three ways from one tool to another:
- How much of the wording is followed: long sentences vs. short keyword lists.
- The default look: some models lean painterly and dramatic, others plain and photographic.
- Where settings go: in the prompt text, in parameters, or in separate boxes such as a negative prompt.
Midjourney
Midjourney is known for polished, aesthetic results even from short prompts. It adds its own artistic interpretation, which is great for concept art and moody imagery, but it can drift away from exact details.
How to write for it
- Lead with the subject and the style. Midjourney weights the start of the prompt heavily.
- Describe mood and lighting in a few strong words (“cinematic rim light”, “foggy dawn”).
- Put settings in parameters at the end:
--ar 16:9for aspect ratio,--stylizefor how much of Midjourney’s own style to add, and--nofor things to avoid. - To copy the look of a reference image, add it as a style reference with
--srefas well as using a text prompt.
Our Midjourney prompt generator uses a vivid writing style that suits these habits.
Stable Diffusion (SD 1.5 and SDXL)
Stable Diffusion is open and runs in many interfaces: AUTOMATIC1111, ComfyUI, Forge, Fooocus and online services. The look depends a lot on the checkpoint (model file) you choose, so the same prompt can look photographic in one model and anime-style in another.
How to write for it
- Comma-separated descriptive phrases work well: subject, setting, style, lighting, camera, quality terms.
- Use the separate negative prompt box for things you don’t want (blurry, extra fingers, watermark, text).
- Pick a checkpoint that matches the image type before blaming the prompt.
- Settings such as CFG scale (how strictly the prompt is followed), steps and sampler live outside the prompt.
See the Stable Diffusion prompt generator for a negative-prompt starter list.
Flux
Flux models understand natural language very well, including long, detailed sentences, spatial relationships and short pieces of text in the image. That makes them a great match for the descriptive paragraphs an image to prompt tool produces.
- Write in full sentences. You don’t need keyword lists or quality tags.
- Be precise about positions and counts (“three red apples on the left side of a wooden table”).
- Put any text you want rendered in quotation marks.
- Flux usually doesn’t rely on negative prompts, so describe what you want rather than what you don’t.
ChatGPT and DALL·E
In ChatGPT you describe the image in conversation, and you can refine it step by step (“make the background darker”, “move the logo to the top”). It follows instructions closely and is good at layouts and text.
- Paste the generated prompt and add the purpose: “for a blog header, wide format”.
- Refine with short follow-up messages instead of rewriting the whole prompt.
- Ask for the aspect ratio in plain words (wide, square, tall).
Side-by-side comparison
| Tool | Best prompt style | Where settings go | Strength |
|---|---|---|---|
| Midjourney | Short to medium, subject and style first | Parameters at the end (–ar, –stylize, –no, –sref) | Polished artistic look |
| Stable Diffusion | Comma-separated descriptive phrases | Negative prompt box, CFG, steps, model choice | Full control, many styles |
| Flux | Natural, detailed sentences | Interface settings (size, steps) | Follows complex descriptions and text |
| ChatGPT / DALL·E | Conversational description | Follow-up messages | Easy step-by-step editing |
Adapting one prompt for every tool
- Upload your reference to ph-imetix and generate 3–5 prompt variants.
- Flux / ChatGPT: use the longest variant as it is.
- Midjourney: trim it to the subject, style, light and mood, then add parameters.
- Stable Diffusion: turn the sentences into comma-separated phrases and add a negative prompt.
- Compare results and keep the wording that worked best in each tool for next time.
Related articles
- How to Get the Prompt From Any Image (Step-by-Step Guide)
- 10 Tips to Write Better AI Image Prompts (With Examples)
- AI Product Photography Prompts: Turn One Photo into Many Scenes
Try it free: Image to Prompt Generator · Midjourney · Stable Diffusion & Flux · Stock keywords · Bulk