A prompt improver, also called a prompt enhancer, is a tool that rewrites a rough AI prompt into one a model can act on. Of the five options below, the ivee app ranks first for people who use ChatGPT, Claude, Gemini or Copilot at work, because it runs inside those tools and suggests the right model. It has a real weakness too: it is Mac only for now.
ivee makes number one on this list, so treat that ranking with the suspicion it deserves. We say where each option is weakest, ours included, and the table lets you check the criteria yourself.
What does a prompt improver actually do?
It rewrites your draft so the model gets a better brief. You type “summarise this meeting” and the tool turns it into: “Summarise the following meeting transcript in bullet points, covering decisions made and action items. Keep it under 200 words.” Same intent, much better output.
Most improvers work one of two ways. Template-based tools slot your input into a fixed structure for consistent results. AI-powered tools send your prompt through another model layer that rewrites it in context, which tends to suit open-ended work better. For the principles underneath both, read our guide to writing prompts that actually work.
Why bother? In the 14x cost of an under-specified prompt, ivee’s August 2026 research with 500 UK AI decision makers found a thin prompt costs 14 times more on average than a well-loaded one, because of the back-and-forth needed to repair it.
How did we rank them?
We scored each option on five criteria, the things that matter when AI is part of your working day rather than a hobby.
Ease of use. Can a complete beginner use it without a tutorial?
Works where you work. Does it run inside your AI tool, or does it mean switching tabs?
Quality of improvements. Does the rewritten prompt produce a better response?
Cost. Is it free, or does a paywall limit everyday use?
Team use. Can a team share what works, or is every person on their own?
Which are the best prompt improvers, ranked?
Tool | Where it works | Cost | Best for | Main weakness |
|---|---|---|---|---|
ivee app | Inside ChatGPT, Claude, Gemini and Copilot, via a shortcut (Mac) | Free Basic plan, paid team plans | Individuals and teams using Claude or Copilot at work | Mac only for now, Windows is on a waitlist |
PromptPerfect | Separate web tool | Free tier with usage limits | Image and multimodal prompts | You leave your AI tool to use it |
AIPRM | Chrome extension, centred on ChatGPT | Free version and paid plans | Repeatable, structured ChatGPT tasks | A template library, not a live rewriter |
Asking the AI itself | Any chat window | Free | Occasional, simple prompts | Two steps, and quality varies by model |
Promptbase | Marketplace | Pay per prompt | Ready-made prompts for a specific task | Does not improve your own prompt, quality varies by seller |
1. The ivee app: our top pick
The ivee app is a Mac app that sits inside ChatGPT, Claude, Gemini and Copilot. Write a prompt, press Shift+Command+Space and it rewrites the draft and suggests which model to send it to. It replaces ivee’s old Chrome extension.
Free Basic plan for anyone trying the prompt improver
AI-powered rewriting, not a rigid template
Model suggestions, so a quick question does not go to the heaviest model
Team access, so a good prompt becomes everyone’s prompt
The honest weakness: it is Mac only today, and Windows users join a waitlist. It also needs you to press the shortcut, so it will not fix a prompt you never thought to improve. Download it from the ivee download page.
2. PromptPerfect
PromptPerfect is a web tool from Jina AI that optimises prompts for language models and image generators, including Midjourney and Stable Diffusion. If you work across text and image AI, it is more versatile than most.
Good for: image generation prompts and multimodal workflows
Worth knowing: you leave your AI tool to use it, which adds friction, and the free tier has usage limits
3. AIPRM
AIPRM is a Chrome extension with a large community library of ready-made prompt templates for SEO, copywriting and customer support. It is more a template library than a live rewriter.
Good for: business users with repetitive, structured tasks in ChatGPT
Worth knowing: it works mainly with ChatGPT rather than across your AI tools
4. Asking the AI to improve your own prompt
This is a technique, not a tool. Before your real request, send: “Improve this prompt so it gets better results: [your prompt]”. It costs nothing and works for simple tasks. The downside is two steps instead of one, and quality varies by model, so it rarely becomes a daily habit.
5. Promptbase
Promptbase is a marketplace where people buy and sell professionally written prompts. Rather than improving your own prompt, you buy one already tuned for a task such as product descriptions or social posts.
Good for: specific, repeatable tasks where you want a ready-made answer
Worth knowing: prompts cost money and quality varies by seller
Which prompt improver is best for a team?
For a team, the best option is one that makes good prompts shared rather than personal. Individual improvers help each person once. They do not stop ten colleagues improvising ten different ways, which is where quality and cost drift.
That is the gap an AI champion fills: someone who finds the prompts that work and shares them. Our post on the AI champion role covers what that takes each month, and how to train your team in AI covers the wider rollout. The ivee app adds team access on top of the rewrite, and the same cost logic is in prompt improver for teams.
Does a prompt improver replace learning to prompt?
No, but it shortens the learning. Four habits get more from any improver:
Start with a real sentence, not a keyword. “Summarise this for my manager” gives the tool more than “summary”.
Include the format you want. A numbered list, a table or under 150 words, written into the rough draft.
Treat the result as a starting point. You can still adjust it.
Let it teach you. After a few rounds you notice what it keeps adding, such as roles, format and context, and you start adding it yourself.
FAQs: prompt improver tools
What is a prompt improver?
A prompt improver is a tool that takes your rough AI prompt and rewrites it to be clearer, more specific and better structured. It is sometimes called a prompt enhancer. The aim is a more useful response from the AI tool you already use.
Are prompt improver tools free?
Some are. The ivee app has a free Basic plan for anyone trying the prompt improver. PromptPerfect has a free tier with usage limits, AIPRM has a free version and paid plans, and Promptbase charges for each prompt.
Does a prompt improver work with ChatGPT, Claude, Gemini and Copilot?
The ivee app works alongside ChatGPT, Claude, Gemini and Copilot. Some tools are built for one platform only, so check before you commit. AIPRM, for example, centres on ChatGPT.
Do I need prompt engineering skills to use one?
No. You write naturally and the tool handles the structure. They are most useful while you are still building your prompting instincts.
Is a prompt improver enough for a whole team?
On its own, rarely. Individual improvers help each person, but they do not set a shared standard. Teams get further when the best prompts are shared and someone, usually an AI champion, keeps them current.
Try the top pick
Prompting is a skill and a prompt improver is the shortcut through the frustrating early stage. Write your next prompt as normal, press the shortcut and compare.
