By Miles Carter
How to Ask AI to Shorten a Long Email
A practical guide for turning long emails into shorter, clearer messages without losing the important point.
Quick answer
To ask AI to shorten a long email, paste the draft and tell it the recipient, goal, desired length, tone, and details that must stay included. Ask it to remove repetition, keep the main request, and avoid adding new information. Review the final version so it still says what you mean.
Key takeaways
- Shortening an email works best when AI knows the goal.
- Tell AI what must stay in the message.
- Ask for a specific length or format.
- Review the shorter version before sending.
Start with the goal of the email
A long email often gets long because it tries to explain everything. Before asking AI to shorten it, name the main goal.
The shorter version should make that goal easier to see.
- Ask for an update.
- Explain a delay.
- Confirm a decision.
- Request one document.
- Share next steps.
Use this email-shortening prompt
This prompt helps AI cut clutter without removing the point of the email.
Paste the email after the prompt, then ask for one revision if the result is still too long or too formal.
- Shorten this email for [recipient]. The goal is [goal]. Keep these details: [must-keep details]. Remove repetition and extra explanation. Keep the tone [tone]. Make it under [length]. Do not add new facts: [paste email].
- Give me a subject line too.
- Keep the main request clear.
- Make it easier to scan.
Tell AI what must stay
AI may shorten the email by removing details you actually need. Protect the important parts by naming them.
This is especially important for dates, names, deadlines, prices, attachments, and commitments.
- Keep the deadline.
- Keep the meeting date.
- Keep the two questions.
- Keep the price exactly as written.
- Keep the apology but make it shorter.
Ask for a specific length
If you only say shorten this, AI may still leave the email longer than you want.
Give a target length or format so the answer is easier to judge.
- Make this under 100 words.
- Make this 5 sentences or less.
- Make this 3 short paragraphs.
- Make this a brief email with bullets.
- Give me the shortest polite version.
Example: long email to shorter email
A long email might include the full background, several apologies, repeated explanations, and the actual request near the end.
A better prompt would say: Shorten this email to my manager. Goal: explain that the report will be ready Friday instead of Thursday. Keep the reason brief, keep the apology, and ask if Friday morning works. Make it professional and under 90 words.
- The recipient is named.
- The goal is clear.
- The must-keep details are named.
- The tone is controlled.
- The length is specific.
Ask AI to remove repetition
Long emails often repeat the same point in different words. AI is useful for finding that repetition and keeping the strongest version.
You can ask AI to show what it removed if you want to learn from the edit.
- Remove repeated points.
- Keep only one explanation.
- Cut anything that does not support the main request.
- Show me what you removed.
- Keep the clearest sentence.
Keep the tone from becoming too blunt
Shorter emails can accidentally sound cold. If the shorter version feels too sharp, ask for warmth without adding length.
A good short email can still be polite.
- Make this warmer but keep it short.
- Make this direct but not rude.
- Keep one friendly opening sentence.
- Keep the request clear.
- Do not over-apologize.
Common mistake: letting AI remove the actual request
Sometimes the shorter version sounds cleaner but hides what you need. Before sending, check whether the recipient can tell what to do next.
If not, ask AI to restore the request.
- What am I asking for?
- Is the deadline clear?
- Is the next step clear?
- Did AI remove a necessary detail?
- Would the recipient know how to respond?
Your five-minute action step
Find one email draft that feels too long. Ask AI to shorten it to a specific length while keeping the main request.
Then ask for one warmer version and one more direct version so you can choose the best fit.
- Paste the draft.
- Name the recipient.
- Name the goal.
- List must-keep details.
- Ask for a length limit.
Related reading
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Beginner FAQ
How do I ask AI to shorten an email?
Paste the email and tell AI the recipient, goal, tone, desired length, and details that must stay included.
How do I keep AI from removing important details?
List the details that must stay in the email, such as dates, deadlines, names, questions, prices, or commitments.
Can AI make a long email sound less rude?
Yes. Ask for a shorter version that is direct but not rude, and tell AI to keep the tone polite or warm.
Should I send the shortened AI version as-is?
Review it first. Make sure the facts, request, deadline, and tone are still right.
Next step
Want a guided path instead of random tips?
AI Basics Bootcamp turns these beginner ideas into a short, practical course with examples, practice prompts, and progress you can follow at your own pace.