Is it safe to put your CV into ChatGPT?

It can be, if you remove your contact details and ID numbers first and check your data settings. On ChatGPT Free, Plus and Pro, OpenAI may use your chats to train its models unless you turn that off. Claude and Gemini have similar controls, and all three offer a chat mode that isn’t used for training.

By Paul and the c-v.ai team, drawing on years of hiring across industries and of writing CVs professionally. Published 10 November 2026.

The short answer

Treat a chatbot like any other online service. What you paste in is stored, at least for a while, and on some plans it can be used to improve the company’s models or read by human reviewers. None of that matters much if the text you paste can’t identify you.

A chatbot doesn’t need your name, phone number or ID numbers to improve your CV. It needs your experience and the job ad. So the safe way to use ChatGPT, Claude or Gemini for a CV (résumé) is to remove identifying details first, then choose the most private chat mode the service offers.

Everything below comes from each company’s own help or privacy pages, which we checked on 10 November 2026. Settings change, so check them again before you paste.

What happens to what you paste

ChatGPT (OpenAI)

Training. On ChatGPT Free, Plus and Pro, OpenAI says it may use your content to train its models, and that data sharing is on by default. To opt out, turn off “Improve the model for everyone” under Settings, then Data controls. OpenAI says it then won’t use your new conversations to improve its models.
Feedback. If you give a thumbs up or down, OpenAI says the whole conversation may be used for training, even if you have opted out.
Temporary chats. These aren’t used to improve OpenAI’s models, don’t appear in your history and don’t create memories. OpenAI may keep a copy for up to 30 days for safety.
Memory. With Memory on, ChatGPT can remember details from your chats. OpenAI says deleting a chat doesn’t necessarily delete a saved memory created from it, so delete both.
Work accounts. OpenAI says ChatGPT Business, Enterprise and Edu, and its API, aren’t used to train its models by default.

Claude (Anthropic)

Training. For Claude Free, Pro and Max, Anthropic says you choose whether your chats are used to improve Claude, through the Model Improvement setting in your privacy settings. Its privacy policy adds that chats flagged for safety review can still be used.
Incognito chats. Anthropic says these aren’t used to improve Claude, even if Model Improvement is on.
Feedback. If you rate a response, Anthropic stores the related conversation for up to 5 years and may use it for training.
Retention. With Model Improvement on, Anthropic says it may keep de-identified data for up to 5 years in its training pipelines. Chats you delete leave your history at once and its back-end systems within 30 days.

Gemini (Google)

Training and review. With Keep Activity on, Google uses your activity to improve its services, including training generative AI models, and some chats are read by human reviewers. Google asks you not to enter confidential information you wouldn’t want a reviewer to see.
Keep Activity off. Google says your future chats won’t be used to train its AI models unless you send feedback. They are still kept with your account for 72 hours.
Temporary chats. Not used to train Google’s AI models, and kept for 72 hours.
Retention. Activity is deleted after 18 months by default. Chats seen by human reviewers are kept for up to three years, even if you delete your activity.

	ChatGPT	Claude	Gemini
Used for training on personal plans	Yes, by default. Turn off “Improve the model for everyone”.	Your choice in the Model Improvement setting	Yes, while Keep Activity is on
Private chat mode	Temporary chat, kept up to 30 days for safety	Incognito chat	Temporary chat, kept for 72 hours
Sending feedback	Whole chat may be used for training	Chat kept up to 5 years, may be used for training	Used to improve Gemini, even with Keep Activity off
Human review	Not covered on the pages we checked	Not covered on the pages we checked	Some chats, while Keep Activity is on

What to remove before you paste

Make a copy of your CV text and take out anything that identifies you. Replace each item with a placeholder, and add the real details back when you make the final document.

Contact details. Your name, phone number, email address, home address and any links to personal profiles. Use [Name], [Phone] and [Email].
ID numbers. Any national ID, tax or social security number. The table below shows the main ones by country.
Date of birth and photo. Many countries’ guidance already says to leave these off a CV. Our guide to CV norms by country has the details.
Referees. Their names, phone numbers and emails are someone else’s personal data.
Anything confidential from work. Client names, internal figures or project names your employer wouldn’t want shared. Describe the work instead, for example “a national retail client”.

ID numbers to remove, by country

Country	Number	What official guidance says
United States	Social Security number (SSN)	The FTC says to ask questions before you give it out. Organisations such as the IRS, your bank and your employer need it.
Canada	Social Insurance Number (SIN)	The Government of Canada says it is only required after hiring, and you don’t have to give it to fill out a job application.
United Kingdom	National Insurance number	GOV.UK says not to share it with anyone who doesn’t need it. Your employer is one who does.
Australia	Tax file number (TFN)	The ATO lists your employer “when you start work” among those you should give it to.
India	Aadhaar number	UIDAI advises against sharing it openly in public places such as social media. Its masked Aadhaar shows only the last 4 digits.
South Africa	ID number	The Information Regulator lists your identity number as personal information under POPIA. Government CV guides list it under personal details, so add it only to the final CV.
Singapore	NRIC number	The PDPC says the law doesn’t require NRIC numbers for job applications. An employer asks for it once it decides to hire you.
Poland	PESEL	The Labour Code lets an employer ask a candidate for name, date of birth, contact details, education, qualifications and work history. PESEL is asked of employees only.
Spain	DNI	The AEPD, Spain’s data protection authority, advises against sending a copy of your DNI by email.
Brazil	CPF	The ANPD lists the CPF as personal data and advises sharing personal data only where strictly necessary.

The same applies to passport numbers, driving licence numbers, bank details and visa reference numbers. None of them helps a chatbot improve your wording.

A worked example

Jordan Ellis, a fictional warehouse supervisor, has this at the top of his CV:

Jordan Ellis · 07700 900123 · jordan.ellis@example.com · 14 Mill Lane, Leeds · Date of birth: 3 May 1994 · National Insurance number: QQ 12 34 56 C

Before pasting, he replaces it with this:

[Name] · [Phone] · [Email] · Leeds

The town stays, because it can matter for the job and doesn’t identify him on its own. His date of birth and National Insurance number go completely, and don’t come back in the final CV either. He also replaces his referee’s name with [Referee], then starts a temporary chat.

A prompt that doesn’t invent experience

Once your text is clean, give the chatbot clear rules. This prompt works in ChatGPT, Claude and Gemini:

Here is my CV and a job ad. Improve the wording of my CV for this job using only facts that are in my CV. Don’t add skills, numbers, job titles or qualifications I haven’t given you. If a detail would help, ask me for it instead of guessing. At the end, list every change you made and every line that now says something my original CV didn’t.

Then check every line yourself. Chatbots can still produce plausible details that aren’t yours. Our ChatGPT prompts for your CV have more prompts for each step, and our guide to tailoring a CV to a job description explains what to change for each ad.

Chatbot or CV app?

A general chatbot is a good choice if you need one CV, you are happy writing prompts and you will format the document yourself. It also suits you if you use Android or work mainly on a computer.

A CV app is easier if you apply for many jobs and don’t want to repeat the clean-up and the checking each time. Our comparison of c-v.ai and ChatGPT sets the two side by side.

How c-v.ai handles your CV

In c-v.ai, your CVs, job ads and PDFs are stored on your iPhone. Editing, choosing a design and exporting PDFs don’t send your CV anywhere. Nothing is sent for AI processing until you choose an AI action and allow it, and the app shows what will be sent first.

AI review and tailoring send the text of your CV without the dedicated contact fields or your photo. Personal details you have typed into the text itself can still be included, so keep ID numbers out of your CV. The optional PDF layout check in AI review sends images of your pages, which can show your contact details and photo, and you can turn it off.

AI processing is provided by Anthropic through its commercial API. Under those terms Anthropic doesn’t train its models on the data and keeps it only for a limited period for trust and safety. c-v.ai doesn’t keep your CV content after a request is done. The privacy policy has the details.

Questions

Does ChatGPT use my CV to train its models?

It can. OpenAI says that on ChatGPT Free, Plus and Pro it may use your content to train its models, and that sharing is on by default. Turn off “Improve the model for everyone” under Settings, then Data controls, or use a temporary chat, which isn’t used to improve its models. Business, Enterprise and Edu workspaces and the API aren’t used for training by default.

What should I remove from my CV before pasting it into ChatGPT?

Your name, phone number, email and home address; any national ID, tax or social security number; your date of birth; your photo; and the names and contact details of your referees. Replace them with placeholders such as [Name] and add them back in the final document. The chatbot doesn’t need any of them to improve your wording.

Is Claude or Gemini safer than ChatGPT for a CV?

All three let you limit how your chats are used. Anthropic lets you choose in your privacy settings whether chats are used to improve Claude, and Incognito chats aren’t used for that. Google says Gemini chats can be read by human reviewers while Keep Activity is on, and asks you not to enter confidential information. Remove personal details whichever you use.

Does deleting a chat remove my CV?

It removes it from your history, but not always everything at once. Anthropic says deleted Claude chats are removed from its back-end within 30 days. OpenAI says deleting a ChatGPT chat doesn’t necessarily delete a saved memory created from it, so check your memories too. Google keeps Gemini chats that human reviewers have seen for up to three years, even after you delete your activity.

Should I put my Social Security number or national ID on my CV at all?

Usually not. Government guidance in several countries says employers need these numbers only once you are hired. Canada says you don’t have to give your SIN to fill out a job application, and Singapore’s data protection regulator says the law doesn’t require NRIC numbers for job applications. South African government CV guides are an exception and list your ID number under personal details.