AI letter generator

Run on October 9, 2026: 5 inputs on 19 models, each with this tool's own instructions.

Write this letter, complete and laid out: date, salutation, body and closing. Keep every name, date and number I give, and put anything missing in [brackets]. Make it a reference or recommendation letter: how the writer knows the person, specific strengths with an example, and a clear recommendation.

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A reference letter for my former employee Tomás Silva, a junior accountant at Keller & Co. from March 2022 to August 2025. He cut the month-end close from 10 days to 6 and trained two new hires. I was his manager; my name is Anna Keller.

[Date]

To Whom It May Concern:

I am pleased to recommend Tomás Silva, who worked as a junior accountant at Keller & Co. from March 2022 to August 2025. I was his manager and had the opportunity to observe his work and professional growth firsthand.

Tomás is organized, dependable, and committed to improving how work gets done. For example, he helped cut our month-end close from 10 days to 6. He also trained two new hires, showing patience and a clear ability to explain accounting processes.

I recommend Tomás without reservation for roles that suit his skills and experience. I am confident he would make a valuable contribution to your organization.

Sincerely,

Anna Keller
[Contact information]

[date]

To whom it may concern,

I am writing to recommend Tomás Silva, who worked as a junior accountant at Keller & Co. from March 2022 to August 2025. I was his manager throughout his time with us and saw his work first-hand over more than three years.

Tomás is a diligent, capable and resourceful accountant. His most notable contribution was improving our month-end close process, which he reduced from 10 days to 6 through careful streamlining and attention to detail. He was also generous with his knowledge: he trained two new hires on our procedures and systems, and both settled in quickly thanks to his patient and clear guidance. Beyond these achievements, he was consistently reliable, met every deadline, and brought a positive, professional attitude to the team.

I recommend Tomás without hesitation. He would be a valuable asset to any finance team, and any employer would be fortunate to have him.

Yours sincerely,

Anna Keller
Manager, Keller & Co.
[contact details]

1. Say what the letter is for, who it's to, and every fact it must include: names, dates, amounts, reference numbers. Up to 1,200 characters.

2. Pick the kind of letter, the tone and the language.

3. Press “Write the letter”. Without an account you see how it opens (1 free run a day, no account needed).

4. Fill in the [blanks], read it once aloud, and sign it.

• Give it the numbers

  Order numbers, dates and amounts are what get a complaint or a request acted on. Put them all in; the letter keeps them exactly.

• Say what you want

  Say what you want to happen, and by when: “a replacement within 14 days”. A letter without an ask gets a reply without an answer.

• Answer their next question

  For a resignation or a leave letter, name who covers your work. It's the first question your manager will have.

• Firm for the follow-up

  Pick Firm for a second complaint. It drops the pleasantries and restates the deadline.

• The point, up front

  The first paragraph should say why you're writing: “I am writing to resign from my position as…”, not two paragraphs of pleasantries first.

• Your facts, exact

  Every date, amount, reference number and name you gave should appear exactly as you wrote it. A complaint that gets the order number wrong gets a slow reply.

• Blanks, not guesses

  What it doesn't know (your address, the recipient's title, a date) should be a [blank] you fill in, not a made-up detail you might miss.

• The right opening and closing

  A formal letter has a salutation, short paragraphs and a closing that matches it (“Dear Ms Rao … Yours sincerely”). Check the ending fits the opening.

• Without an account: 1 free run a day, on GPT-6 Luna, shared with the free message on our home page. It takes up to 1,200 characters, writes up to about 600 tokens (roughly 450 words), and shows you the start of the letter.

• Signing up is free, with an email link and no card. llmwise accounts are for people 18 and older. The letter you ran comes with you as your first chat, and you get 5 free messages on almost every model (all but Claude Fable 5.1 and GPT-6 Astra).

• Signed in, the tool runs on the model you pick, on your plan, shows the whole answer, and you can carry on in the chat with any model, or ask another model the same thing.

More free tools are on the tools page, and what each plan gives is on pricing.