What does Prompt Optimizer send when I optimize a prompt?
It sends the prompt you wrote plus the last few messages in the conversation, so the rewrite fits the context. Your text is not stored. Optimizing happens before anything goes to ChatGPT.
ChatGPT prompt optimizer
ChatGPT Prompt Optimizer: Rewrite weak prompts before you send
Turn a rough draft into a clearer prompt without leaving the composer. GPT Master adds a Prompt Optimizer button inside chatgpt.com: write your prompt, click Optimize, and compare the original with a sharper version side by side.
4,000+ users · 4.8★ on the Chrome Web Store · Free to install
Updated
Write a rough prompt, click Optimize, compare both versions, keep the one you want.
Quick answer
Vague prompts get vague answers. Prompt Optimizer rewrites your draft into a clearer, more specific version before you send it, then shows the original and the rewrite side by side so you choose which to keep. It reads your draft plus the last few messages for context, suggests a stronger phrasing, and leaves the final decision to you. GPT Master adds it directly inside the ChatGPT composer.
Compared to the alternatives
How people sharpen a prompt today
Most people have a way to improve a weak prompt before sending. Each one has a catch.
| Approach | Rewrites your draft? | Keeps your context? | Side-by-side compare? | Inside the composer? | Tradeoff |
|---|---|---|---|---|---|
| Send the rough draft anyway | ✗ | ✓ | ✗ | ✓ | The answer is only as clear as the prompt that produced it. |
| Rewrite it by hand | Manually | ✓ | ✗ | ✓ | You have to know what a strong prompt needs every time. |
| Copy into a prompt guide or template | Manually | ✗ | ✗ | ✗ | Lives in another tab and ignores your actual context. |
| Ask ChatGPT to improve the prompt first | ✓ | ✗ | ✗ | ✓ | Burns a message and clutters the thread with meta-questions. |
| Prompt Optimizer | ✓ | ✓ | ✓ | ✓ | Free tier covers a starter set of optimizations. See [pricing](/#pricing). |
-
Send the rough draft anyway
- ✗ Rewrites your draft?
- ✓ Keeps your context?
- ✗ Side-by-side compare?
- ✓ Inside the composer?
Tradeoff · The answer is only as clear as the prompt that produced it.
-
Rewrite it by hand
- Manually Rewrites your draft?
- ✓ Keeps your context?
- ✗ Side-by-side compare?
- ✓ Inside the composer?
Tradeoff · You have to know what a strong prompt needs every time.
-
Copy into a prompt guide or template
- Manually Rewrites your draft?
- ✗ Keeps your context?
- ✗ Side-by-side compare?
- ✗ Inside the composer?
Tradeoff · Lives in another tab and ignores your actual context.
-
Ask ChatGPT to improve the prompt first
- ✓ Rewrites your draft?
- ✗ Keeps your context?
- ✗ Side-by-side compare?
- ✓ Inside the composer?
Tradeoff · Burns a message and clutters the thread with meta-questions.
-
Prompt Optimizer
- ✓ Rewrites your draft?
- ✓ Keeps your context?
- ✓ Side-by-side compare?
- ✓ Inside the composer?
Tradeoff · Free tier covers a starter set of optimizations. See [pricing](/#pricing).
How it works
How Prompt Optimizer fits your writing
Prompt Optimizer is for the moment before you hit send: a half-formed question, a task with missing details, a prompt you suspect is too vague. It reads your draft and the recent context, then proposes a clearer version you can accept or ignore.
- 1
Write your prompt in the ChatGPT composer, then click the Prompt Optimizer button.
- 2
Read the optimized version next to your original in the compare view.
- 3
Click Use this version to drop it into the composer, or keep your original and send that instead.
What this looks like in practice
Example: turning a vague request into a usable brief
A marketer opens ChatGPT to draft a launch email and types 'write a launch email for our new feature.' It's the kind of prompt that comes back generic, because it never said who the audience is, what the feature does, or what the email should achieve. Instead of sending it and editing the bland result, the marketer clicks Prompt Optimizer. The compare view shows the original next to a rewritten version that asks for a specific audience, a clear call to action, a subject line, and a target length. The marketer keeps the optimized prompt, sends it, and gets a draft that needs minor edits instead of a full rewrite.
Frequently asked
Questions people have before they install
These questions cover fit, workflow, and what to expect before installing GPT Master, so people can understand the feature in practical terms before clicking through to the Chrome Web Store.
Does optimizing count against my ChatGPT usage?
No. Prompt Optimizer runs through GPT Master's own service, not your ChatGPT account, so proposing a rewrite doesn't touch your ChatGPT message limits. Sending the final prompt to ChatGPT works exactly as it normally does.
What happens if my prompt is already clear?
Prompt Optimizer tells you the prompt is already clear and makes no change, and that check doesn't count against your weekly allowance. You can edit the prompt and optimize again to try a different angle.
Is Prompt Optimizer free?
The free tier covers a starter set of optimizations each week. Optional Pro upgrades remove the cap (see [pricing](/#pricing)).
Ready to try it inside ChatGPT?
Sharpen your ChatGPT prompts before you hit send.
Add to Chrome4,000+ users · 4.8★ on the Chrome Web Store · Free to install
Related pages
Explore the rest of the ChatGPT workflow stack
Related feature
ChatGPT prompt library
Save reusable prompts and insert them in the ChatGPT composer with a slash-key palette.
Related feature
ChatGPT Side Chat
Ask a side question about any ChatGPT message in a right panel, without polluting your main chats.
Related feature
ChatGPT organizer
Turn scattered threads into a structured workspace with folders, bookmarks, notes, and bulk actions.