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Letters · Formal writing · Professional

How to Use AI to Write Formal Letters

Formal letters follow conventions most people only encounter occasionally — which means when you need to write one, you're either unsure of the format or unsure of the language, or both. AI handles both. Whether it's a letter of complaint, a legal notice, a cover letter, a reference letter, a letter of intent, or a formal request to an institution, AI produces properly formatted, appropriately toned output that would take most people far longer to produce alone. The key is providing enough context: who you are, who you're writing to, what the situation is, and what you want the letter to achieve. The more specific you are, the less generic the output.

5 Best Prompts for Writing Formal Letters to Ask Claude or ChatGPT

Copy any prompt below and paste it directly into your AI of choice.

  1. Prompt 01 · Letter of complaint

    "I need to write a formal letter of complaint to [organization] about [issue]. Here are the facts: [chronological description]. I want [outcome]. Can you write a formal letter that is firm and specific without being aggressive, and makes clear I am prepared to escalate if needed?"

    Best for: complaints that need to be taken seriously and documented properly.

  2. Prompt 02 · Cover letter

    "I am applying for [job title] at [company]. Here is the job description: [paste]. Here is my relevant background: [summarize]. Can you write a cover letter that's specific to this role, highlights the most relevant parts of my background, and doesn't just repeat my CV — it should explain why this particular role at this particular company?"

    Best for: cover letters that actually differentiate you rather than restating your résumé.

  3. Prompt 03 · Reference or recommendation letter

    "I need to write a reference letter for [person] who is applying for [role / program / opportunity]. Here's what I know about them and their work: [describe]. Can you draft a strong, specific reference letter that goes beyond generic praise to give concrete examples of what makes them well-suited?"

    Best for: reference letters that are genuinely persuasive rather than boilerplate.

  4. Prompt 04 · Letter of intent or interest

    "I want to write a letter of intent to [organization / program / institution] expressing my interest in [opportunity]. Here's my relevant background and why I'm interested: [describe]. Can you write a formal letter of intent that's specific, professional, and makes a compelling case for why I should be considered?"

    Best for: expressing serious interest in an opportunity before a formal application process opens.

  5. Prompt 05 · Formal request

    "I need to write a formal letter requesting [what you need: information / waiver / accommodation / access / extension] from [organization]. Here's the context and my justification: [describe]. Can you draft a polite, professional letter that makes a clear and reasonable request and includes any relevant supporting context?"

    Best for: requests to institutions, government bodies, or organizations that require formal documentation.