The 25 Best Prompts for Claude AI in 2026

A good prompt turns Claude into an assistant comparable to a senior professional in any field. A bad one produces generic surface answers. After months testing prompts in production, here are the 25 that work best in 2026.

All follow the same internal structure: clear role, context, specific task, output format. Copy the prompt, replace brackets with your case, adjust as needed.

Writing and communication

1. Rewrite text for clarity

Act as senior editor. Rewrite the following text
to be 40% shorter without losing information.
Rules:
- Sentences max 20 words
- Remove non-essential adverbs
- Passive to active voice
- Keep original tone
Text: [paste]

2. Generate 10 headlines

Generate 10 headlines for an article about [topic].
Audience: [describe]. Goal: [inform/sell/entertain].
Distribution:
- 3 with number (listicles)
- 3 with question
- 2 with "How to X without Y" formula
- 2 controversial or counterintuitive
Ranking at end: which would work best and why.

3. Structure a long essay

I'll write an essay on [topic], ~2000 words.
Thesis: [yours]. Audience: [describe].
Give me detailed outline:
- Intro (hook + thesis)
- 3-4 sections with subheadings and bullets
- Conclusion (recap + CTA)
For each section, suggest a concrete example or data point.

4. Convert notes to article

Convert these scattered notes into a coherent ~800 word article.
Keep my voice (informal but precise).
Don't invent data. Mark incomplete parts [MISSING].
Notes: [paste]

5. Fix a text without changing style

Fix spelling and grammar in the following text.
DON'T change style, tone, or structure.
DON'T reformulate correct phrases.
Return corrected text and a separate list of changes.
Text: [paste]

Programming and code

6. Review my code as a senior

Act as senior engineer with 15 years experience.
Review the following code. Focus on:
1. Potential bugs or unhandled edge cases
2. Performance issues
3. Missing tests or limit cases
4. Improvable conventions
Rank by severity (critical/medium/low).
DON'T rewrite everything, just flag lines.
Code: [paste]

7. Explain this code line by line

Explain this code as if it were a tutorial for a
junior developer. For each logical block:
- What it does
- Why it's done this way (not another)
- What could go wrong
Code: [paste]

8. Refactor without changing behavior

Refactor this code for readability and maintainability.
STRICT rules:
- External behavior can't change
- Existing tests must keep passing
- No new dependencies
- Explain each change with a one-line comment
Code: [paste]

9. Debug this error

This is the error: [paste full error]
This is the relevant code: [paste]
I already tried: [list attempts]
Give me 3 hypotheses on the cause, ordered by likelihood.
For the most likely, explain how to verify and how to fix.

10. Write unit tests

Write unit tests for the following function.
Framework: [jest/pytest/etc].
Cover:
- Happy path
- At least 3 edge cases
- One invalid input case
- Mocking of external dependencies
Function: [paste]

Analysis and decision-making

11. Analyze pros and cons

Considering [concrete decision].
Context: [constraints, deadlines, resources].
Give me:
1. 5 strong non-obvious arguments FOR
2. 5 honest arguments AGAINST
3. 3 alternatives I haven't considered
4. What questions I should answer before deciding

12. Compare two options

Compare [option A] vs [option B] for: [context].
Output format:
- Table with criteria and 1-5 rating
- Which wins overall and why
- In what specific case would the loser be better

13. Summarize a long document

Summarize the following document in:
1. A 3-line paragraph (elevator pitch)
2. 5 bullets with essentials
3. 3 points a critical reader would question
Document: [paste]

14. Extract insights from data

This is data from [describe source and period]:
[paste table]
Find:
- 3 interesting patterns
- 2 outliers with possible explanation
- 1 counterintuitive hypothesis
- What additional data I'd request to validate

15. Structure an important meeting

Meeting with [interlocutor] about [topic].
Goal: [what you want to achieve].
Time: [X minutes].
Design me:
- Agenda with timing
- 3 key questions to ask
- 2 likely objections and responses
- What to document after

Marketing and sales

16. Cold sales email

Write a cold sales email for [product/service].
Recipient: [role and context].
Goal: 15-min meeting.
Rules:
- Max 90 words
- Subject max 8 words
- Zero corporate jargon
- Start acknowledging a real pain of their role
- Soft CTA (not "buy now")

17. Generate 20 content ideas

My niche: [describe].
My audience: [pain and aspiration].
Preferred format: [blog/video/podcast].
Give me 20 content ideas:
- 8 educational
- 6 "contrarian opinion"
- 4 case studies or interviews
- 2 risky/viral
Each: title + 1-line hook.

18. Analyze a competitor's copy

Analyze this copy from [competitor]:
[paste]
Find:
- 3 things they do very well
- 3 things that can be improved
- What emotion they try to trigger
- How I'd differentiate

Learning and personal productivity

19. Teach me something new

Teach me [topic] from scratch. Current level: [describe].
Goal: in 2 weeks be able to [concrete goal].
Design me:
- 14-day plan, 20 min/day
- 3 free resources per week
- A practical exercise every 2 days
- How to know I'm progressing

20. Explain like I'm 10

Explain [concept] like I'm 10 years old.
Rules:
- Use analogy with something everyday
- Max 200 words
- Zero technical jargon
- End with a question to verify I understood

21. Morning routine

Design me a 60-min morning routine for:
Priority goal: [clear].
Constraints: [time, energy, family context].
Structure:
- Time blocks with activity
- What to do if rushed (20-min version)
- What to avoid and why

22. Prepare an interview

Interview for [role] at [company].
My profile: [brief summary].
My fears: [list].
Prepare me:
- 10 likely questions + model answers using my profile
- 5 questions I should ask at end
- What to research about the company this week

23. Personal consultation

Situation: [detailed, 200+ words].
Already tried: [list].
Constraints: [time, money, other].
Act as neutral coach. Ask me 5 questions before advising.
Only when I answer, give recommendations.

24. Generate FAQ questions

For [product/service], generate 15 FAQs
a potential customer would ask before buying.
Order by funnel phase:
- Discovery (5)
- Consideration (5)
- Decision (5)
For each, 2-3 sentence answer.

25. Self-critique a plan

My plan: [describe].
My goal: [concrete and measurable].
Act as critical but constructive listener.
Find:
- 3 hidden assumptions I haven't validated
- 2 risks I'm underestimating
- 1 better alternative I haven't considered
- A cheap experiment that would validate the plan in under a week

Tips to adapt these prompts

• Be specific: "write an email" is weak; "write a 90-word email to a B2B procurement director, direct tone, meeting goal" produces gold.
• Give context: Claude doesn't know your situation.
• Define format: table, bullets, prose — say it.
• Iterate: first response is rarely best.