# A ChatGPT alternative for letters, not everything > ChatGPT can read a letter and write a reply. It does not keep the deadline, the reference number, or the second letter. Here is what does. Canonical: https://dev.swirlai.app/blog/chatgpt-alternative-for-letters Last updated: 2026-10-31 ChatGPT is fine for one letter. Paste it in, ask what it means, ask for a reply. What it will not do is keep the deadline, hold the reference number, or remember the first letter when the second one arrives. Swirl is the alternative built for that loop: photograph the letter, get the reply, keep the case. It costs $9 a month, or $5 for a week. Most ChatGPT alternative posts compare features. This one compares one job: a letter arrives, it has a date on it, and you have to answer. Run that job through both tools and the difference is not close, because only one of them is trying. ## Where ChatGPT is better Start here, because it is true. ChatGPT is cheaper if you already pay for it. It is better at general questions. It has more integrations, more tutorials, and a better chance of knowing the obscure thing you asked about. If you need one answer about one letter, it will do the job. The limit is not intelligence. It is that a chat is a room you leave. Close the tab and the deadline, the reference number, and the first letter are gone with it. ## The three things a letter needs - What it says, in words you can act on. Both tools do this. - What happens if you ignore it. A general chat will guess. A tool built for letters can name the next step. - A reply you can send, in the right tone, before the date. The third one is the work. A reply that is too soft invites a second letter. A reply that is too angry costs you the thing you wanted. Swirl checks the draft before you send it and flags what you left out. ## What a week pass is for Most letters resolve in a fortnight. A $5 week pass covers the reply, the follow-up, and the second letter if it comes, without a year of subscription for a problem that ends in March. ## When to stay on ChatGPT If the letter is a single question and you will never see it again, stay where you are. If you are writing an essay about the letter, or the letter is coursework, a study tool is the better buy. Come back when the paperwork piles up. ## The test that settles it Ask both tools the same question: what is the deadline, and what happens if I miss it. One of them will answer from the letter. The other will answer from the prompt. ## Do this in Swirl One letter is a question. A run of letters is a case. **ChatGPT:** ChatGPT is the better buy if you already pay for it and the letter is a one-off. Swirl is built for the letter with a date on it, and keeps what the first one said. [Read the fair comparison](https://dev.swirlai.app/vs/chatgpt) Prompt: I have a letter from the council about money they say I owe. Read it, tell me whether the amount and the deadline are right, and draft a reply asking them to check it: [Try this in Swirl](https://dev.swirlai.app/?for=writing&utm_source=blog&utm_medium=chatgpt-alternative-for-letters) ### Is ChatGPT good enough for replying to a letter? For a single letter, often yes. It writes clear prose and can follow a tone instruction. It struggles when the letter needs a fact from an earlier letter, because that fact is not in the chat. ### Does ChatGPT remember a letter between chats? It can remember a preference or a fact if memory is switched on, but it does not keep a case file. The deadline, the reference number, and the wording of the original letter are not tracked for you. ### How much does the alternative cost? Swirl is $9 a month, $72 a year if you pay yearly, or $5 for a seven day pass. The pass is the one to take if the problem has an end date, which most letters do. ## Related - [Best AI for letters and paperwork in 2026](https://dev.swirlai.app/blog/best-ai-for-letters) - [How to explain a letter in plain English](https://dev.swirlai.app/blog/how-to-explain-a-letter)