Both Sign up with email, or with your Google, Apple or Microsoft account.
The free plan is enough to learn on. Use a personal email for personal use. For work, ask your employer first; they may already provide an approved version.
DesktopSettings › Data controls › Improve the model for everyone
Phone iPhone: three dots at the top right › Settings › Data controls › Improve the model for everyone. Android: menu (three lines) at the top left › Settings › Data controls › Improve the model for everyone.
Switch it off if you would rather your conversations are not used to improve OpenAI's models. Your chats still save to your history either way.
DesktopSettings › Personalization › Custom instructions. Make sure Enable customization is on.
Phone iPhone: three dots at the top right › Settings › Customize ChatGPT. Android: menu (three lines) at the top left › Settings › Customize ChatGPT. Make sure Enable customization is on.
Add your role, your country and how you like answers. Example: "I'm a practice manager in Australia. Use Australian English. Keep answers short and plain, with steps where useful." It applies to every new chat.
In chat Ask "What do you remember about me?" Say "Forget that" to remove something.
Memory makes answers more personal over time. Review it now and then, and delete anything you would not want kept. Deleting a memory does not remove it from past chats, so delete those chats too if needed.
Both Open a new chat, select Temporary, then choose Personalized or Unpersonalized before you send your first message. Unpersonalized ignores your memory and custom instructions.
KeyboardCtrlShiftN (Mac CmdShiftN) in the desktop app
It stays out of your history, does not update memory and is not used for training. OpenAI may still keep a copy for up to 30 days for safety checks.
Both Plans include Free, Go, Plus and Pro. Compare current prices at chatgpt.com/pricing.
Free includes everyday text chats. Uploads, images, voice and other tools have tighter limits, so upgrade only if you keep hitting them. Plans bought on chatgpt.com are charged in Australian dollars. Free and Go accounts may see ads; you can switch off Personalize ads in Settings › Ad controls.
Open your name, then Settings, Data controls, and switch off Improve the model for everyone. On an iPhone tap the three dots at the top right, then Settings, then Data controls; on Android open the menu at the top left, then Settings, then Data controls. Your chats still save to your history either way.
Yes. The Free plan covers everyday text chats, with tighter limits on uploads, images, voice and other tools. Paid plans are Go, Plus and Pro, charged in Australian dollars on chatgpt.com, and Free and Go accounts may see ads.
A temporary chat stays out of your history, does not update memory and is not used for training. OpenAI may still keep a copy for up to 30 days for safety checks. Start one from a new chat by selecting Temporary, or press Ctrl Shift N in the desktop app.
Go to Settings, Personalization, Memory, or ask ChatGPT what it remembers about you in a chat. Say Forget that to remove something, and delete the chat as well if you want it gone from history.
Open your name, Settings, Security and login, then Multi-factor authentication (MFA), and choose an authenticator app or a passkey if offered. Set it up on the web at chatgpt.com and it protects every device.
Settings, Personalization, Custom instructions, with Enable customization switched on. Add your role, your country and how you like answers, and it applies to every new chat.
Both Sign in with Google, or enter your email and use the link Claude sends you. If you open the link on a different device, it gives you a code to type in. New accounts also verify a mobile number by text message.
There is no Claude password to set. Each sign-in comes through your email or Google account, so those accounts are your front door. You must be 18 or older to use Claude.
DesktopYour name › Settings › Privacy › Help Improve our AI models
PhoneYour name › Settings › Privacy, same toggle
Switch it off if you would rather your conversations are not used to train future models. Once it is off, your new and past chats are not used in future training, but anything already used stays there. If you leave it on, chats can be kept for up to 5 years for training.
BothYour name › Settings › Your Claude › Instructions. On the older layout it is Settings › Account › Instructions for Claude.
Add your role, your country and how you like answers. Example: "I'm a bookkeeper in Perth. Use Australian English. Keep answers short and plain." It applies to all your chats.
DesktopSettings › Your Claude › Memory from chats, then Manage next to Your memory to review the Topics list. On the older layout it is Settings › Memory › Generate memory from chats.
In chat Ask "What do you remember about me?" and tell it to change or forget anything.
Memory is on by default on Free, Pro, Max and Ultra. You can read, edit or delete every topic it holds, so check it once after your first week.
Both Start a new chat, then tap the ghost icon at the top right before you type.
Incognito chats stay out of your history, are not used for memory and are not used for training, even if training is on. Anthropic still keeps them for 30 days for safety. You can't use incognito inside a Project.
Both Plans for individuals are Free, Pro, Max and Ultra; Team and Enterprise are for organisations. Compare current prices at claude.com/pricing, or in the app store on your phone.
Free is enough to learn on. Upgrade when you often hit the usage limit, not before. Prices show in your local currency where Anthropic supports it, and buying through the App Store or Google Play can cost a different amount. Check the price before you pay.
Yes. The Free plan is enough to learn on, and Pro, Max and Ultra add higher usage limits. Prices show in your local currency where Anthropic supports it, and app store prices can differ, so check before you pay. You must be 18 or older to use Claude.
Open your name, then Settings, Privacy, and switch off Help Improve our AI models. Once it is off, your new and past chats are not used in future training. If you leave it on, chats can be kept for up to 5 years for training.
No. There is no Claude password: you sign in with Google or an email link, so secure that email or Google account with two-step verification instead. Whoever controls your email can get into Claude.
An incognito chat is not saved to your history, is not used for memory and is not used for training even if training is on. Start one with the ghost icon at the top right of a new chat. Anthropic keeps it for 30 days for safety, and you cannot use incognito inside a Project.
Go to Settings, Your Claude, then Manage next to Your memory, and review the Topics list, where you can read, edit or delete every topic. On the older layout it is Settings, Memory, Generate memory from chats. You can also ask Claude what it remembers about you and tell it to change or forget anything.
Your name, Settings, Your Claude, Instructions. On the older layout it is Settings, Account, Instructions for Claude. Add your role, your country and how you like answers, and it applies to all your chats.
Phone Android: Google Play (Android 9 or later). iPhone: App Store. Check the publisher is Google.
Gemini is part of your Google account, so there is no separate sign-up. If you already use Gmail, you already have access. You must be 13 or over; younger children need a parent's approval through Family Link.
DesktopSettings & help › Activity. Near the top, click On, then Turn off or Turn off and delete activity.
PhoneProfile picture › Gemini Apps Activity (on some phones, Menu first), tap On, then Turn off.
Keep Activity is on by default if you are 18 or over. With it on, a subset of chats may be read by human reviewers (disconnected from your account), and reviewed chats are kept for up to three years even if you delete your activity. With it off, chats are held for 72 hours, are not used to improve Google's AI models, and connected apps such as Gmail and Drive stop working in Gemini. If you keep it on, change auto-delete from the default 18 months to 3 months.
DesktopSettings & help › Personal Intelligence › Instructions for Gemini › Add
PhoneProfile picture › Personal Intelligence › Instructions for Gemini
Add your role, your city and how you like answers. Example: "I run a small landscaping business in Adelaide. Use Australian English. Keep answers short."
DesktopSettings & help › Personal Intelligence › Memory
PhoneProfile picture › Personal Intelligence › Memory
Memory lets Gemini draw on your earlier conversations. It works only for personal accounts aged 18 or over, and only while Keep Activity is on. Turn it off if you would rather each chat start clean.
Desktop Next to New chat, click Temporary chat before you type.
Phone Tap Menu at the top, then Temporary chat next to New chat.
Temporary chats are not saved to your activity, are not used to personalise Gemini and are not used to train Google's models. Google holds them for up to 72 hours, then deletes them.
Both Free is generous. Paid tiers are Google AI Plus, Google AI Pro and Google AI Ultra; compare at one.google.com/ai.
Most beginners never need to pay. Upgrade when you want the stronger models daily, higher limits or more storage across Gmail, Drive and Photos, not before.
With Keep Activity on, which is the default for adults, chats are saved and a subset may be read by human reviewers, disconnected from your account, and reviewed chats are kept for up to three years. With it off, chats are held for 72 hours and are not used to improve Google's AI models.
On the web, open Settings and help, then Activity, click On near the top, and choose Turn off or Turn off and delete activity. On a phone, tap your profile picture, then Gemini Apps Activity. Connected apps such as Gmail and Drive stop working in Gemini when it is off.
Yes. The free tier is generous. Paid tiers are Google AI Plus, Google AI Pro and Google AI Ultra, which add stronger models, higher limits and more storage across Gmail, Drive and Photos. Most beginners never need to pay.
A temporary chat is not saved to your activity, is not used to personalise Gemini and is not used to train Google's models. Google holds it for up to 72 hours, then deletes it. On the web, click Temporary chat next to New chat; on a phone, tap Menu first.
Open Settings and help, then Personal Intelligence, then Memory, and switch it off. Memory only works for personal accounts aged 18 or over while Keep Activity is on.
You must be 13 or over. Younger children need a parent's approval through Family Link. Memory, Keep Activity by default and Deep Research are for users 18 or over.
Desktop Go to copilot.com, or open the Copilot app already on Windows 11.
Phone App Store or Google Play. Check the publisher is Microsoft.
Copilot now comes as one app for personal and work accounts. Sign in with your personal account for personal use. Copilot inside Word or Teams at work is managed by your employer.
Both Use the account you use for Outlook.com, Xbox or Windows. Create one free at account.microsoft.com if needed.
Signing in saves your chats; history only works when you are signed in. You can also sign in with Apple or Google, but a Microsoft account links Copilot to your Microsoft privacy dashboard. Keep personal use on a personal account rather than a work or school one.
Both Update the app first. Microsoft states that in the updated app (from 18 August 2026) your prompts, responses and file contents are not used to train its foundation models, so there is no training switch to find. Your chats are still used to run and improve the service.
Older versions of the app had training toggles under Privacy. If you still see them, your app has not updated; switch both off. Chats are still saved to your account, so the next three steps matter.
BothSettings › Personalization: One shared experience (lets your Copilot use personalise Bing, Edge and MSN) and Allow ads personalization
Check both; Microsoft does not state the default. Switch them off if you would rather your Copilot use stayed inside Copilot and did not shape the ads you see.
BothSettings › Personalization › Saved memories, then Manage
In chat Say "Remember that I run a plumbing business in Geelong and prefer short answers in Australian English." to add one.
The Saved memories switch stops Copilot saving new memories, but does not delete the ones already saved. Use Manage to delete single memories, or Delete all memories to clear the lot. Deleting memories does not delete your chats.
Both In the Chats list, open the three dots (More) next to a chat, or right-click it in the Windows or Mac app, and choose Delete. To clear everything, go to account.microsoft.com/privacy/copilot, select Delete all activity history, then Clear.
The personal Copilot app has no documented temporary chat, so delete a sensitive chat afterwards. Otherwise Copilot keeps up to 18 months of chat history.
Both Free Copilot has limits and depends on capacity. Microsoft 365 Personal or Family adds higher limits and Copilot in Word, Excel, PowerPoint and Outlook for the account owner. Premium adds extensive usage, and a Microsoft 365 Pro plan with the highest limits is sold month to month. Compare at microsoft.com/en-au/copilot/pricing/individuals.
Pay only if you hit limits often or want Copilot in Word and Excel at home. Copilot Pro is no longer sold. Prices are shown in Australian dollars.
Microsoft states that in the updated Copilot app, available from 18 August 2026, your prompts, responses and file contents are not used to train its foundation models, so there is no training switch. Your chats are still used to run and improve the service. Older versions had two training toggles under Privacy; if you still see them, update the app and switch them off.
In the Chats list, open the three dots next to a chat, or right-click it in the Windows or Mac app, and choose Delete. To clear everything, go to account.microsoft.com/privacy/copilot, select Delete all activity history, then Clear. Copilot otherwise keeps up to 18 months of history.
Open Settings, Personalization, and switch off Saved memories. That stops new memories but does not delete existing ones, so use Manage to delete single memories or Delete all memories to clear the lot.
Yes, with limits that depend on capacity. Microsoft 365 Personal or Family adds higher limits and Copilot in Word, Excel, PowerPoint and Outlook for the account owner, Premium adds extensive usage, and Microsoft 365 Pro has the highest limits. Copilot Pro is no longer sold. Prices are shown in Australian dollars.
No. The personal Copilot app has no documented temporary chat, so delete a sensitive chat afterwards from the Chats list, or clear all history from the Microsoft privacy dashboard.
Open Settings, Personalization, and switch off One shared experience, which lets your Copilot use personalise Bing, Edge and MSN, and Allow ads personalization. Check both; Microsoft does not state the default.
Phone App Store or Google Play. Check the developer is xAI (shown as X.AI or SpaceXAI on some stores).
Grok is also built into the X app, where it appears as a Grok button in the navigation bar. The standalone app and grok.com give you the full settings described below.
Both Sign in with your X account, Google or Apple, or with an email address. You will be asked for your date of birth.
You must be 13 or older, and a parent must agree to the terms for anyone aged 13 to 17. Grok's output is not always suitable for all ages, so it is not a tool for younger children.
X accountx.com › Settings and privacy › Security and account access › Security › Two-factor authentication
Google or Apple Turn on two-step verification on whichever account you used to sign in.
If you signed in with X, Google or Apple, that account is the key to Grok. Whoever controls it can get into Grok, so secure that account first. If you signed up with an email address, use a strong, unique password.
Grok appSettings › Data Controls › Improve the model, switch off
grok.comSettings › Data › Improve the Model, switch off
Inside XSettings › Privacy & Safety › Data sharing and personalization › Grok & Third-party Collaborators, untick the option beginning "Allow your public data as well as your interactions"
Once off, new conversations are not used for training. Feedback you send with the thumbs buttons may still be used. Inside X, protecting your posts (Audience and tagging › Protect your posts) also keeps them out of Grok training.
Both There is no instructions box documented by SpaceXSI, so put your context in the first line of a chat. Example: "I run a small landscaping business in Adelaide. Use Australian English and keep answers short."
Grok on X can personalise answers from your X activity. To stop that, switch off Personalize Grok using X under Settings › Data Controls in the Grok app, or Settings › Data on grok.com.
Grok app Press and hold a conversation name under your profile picture, then Delete Conversation. For everything: Settings › Data Controls › Delete All Conversations.
grok.com Use the bin icon on the history page for one chat, or Settings to delete all chats or your account.
Inside XSettings › Privacy & Safety › Data sharing and personalization › Grok › Delete Conversation History
Deleted conversations are removed from SpaceXSI or X systems within 30 days, unless they must be kept for security or legal reasons.
Both Click the ghost icon at the top right before you type.
Private Chat conversations do not appear in your history, are not used for model training where that is available, and are deleted from SpaceXSI systems within 30 days.
Both SpaceXSI says limited free access and paid plans are available depending on your location. Compare current plans and prices at grok.com or in the app. Inside X, Grok access follows your X subscription.
Free access is enough to learn on. Upgrade when you often hit the limits, not before, and check the price shown for Australia before you pay.
In the Grok app go to Settings, Data Controls, and switch off Improve the model. On grok.com it is Settings, Data, Improve the Model. Inside X, go to Settings, Privacy and Safety, Data sharing and personalization, Grok and Third-party Collaborators, and untick the data sharing option. New conversations are then not used for training; thumbs feedback may still be.
Private Chat is started with the ghost icon at the top right. The conversation does not appear in your history, is not used for model training where available, and is deleted from SpaceXSI systems within 30 days.
In the app, press and hold a conversation under your profile picture and choose Delete Conversation, or go to Settings, Data Controls, Delete All Conversations. On grok.com use the bin icon on the history page or Settings. Inside X, use Settings, Privacy and Safety, Data sharing and personalization, Grok, Delete Conversation History. Deletion completes within 30 days.
SpaceXSI says limited free access and paid plans are available depending on your location, and inside X your Grok access follows your X subscription. Compare current plans at grok.com or in the app, and check the Australian price before you pay.
You must be 13 or older, and a parent must agree to the terms for users aged 13 to 17. SpaceXSI says Grok's output is not always suitable for all ages.
Grok on X can learn from your public posts and interactions unless you untick the data sharing option under Grok and Third-party Collaborators, and it can personalise answers from your X activity unless you switch off Personalize Grok using X under Settings, Data Controls in the app or Settings, Data on grok.com. Protecting your posts also keeps them out of Grok training.
Both Sign in with Google or Apple (Perplexity's recommended option), or enter your email and use the link or one-time code it sends.
There is no Perplexity password to set. Perplexity says it does not support creating passwords, so your Google, Apple or email account is the front door.
BothAccount › Preferences › AI data retention, switch off (or open perplexity.ai/account/preferences)
AI data retention is on by default on Free, Pro and Max. Switching it off opts you out of AI training data collection from that date on; data already collected cannot be erased. Core features keep working.
BothSettings › Personalization (called Personalize on some accounts): add your occupation, turn on Share location if you want local answers, and use Custom instructions to say how you like answers.
Perplexity uses the profile to shape answers. Example: "Community nurse in regional Victoria. Use Australian English. Keep answers short, with sources."
BothSettings › Memory: the Use search history and Notes switches, and Manage memories to search, delete one or clear all
Switching memory off stops Perplexity referencing it, but existing memories stay until you clear them under Manage memories. Memory and past searches are always off in incognito mode.
Both Plans are Standard (free), Pro and Max, plus Education Pro for verified students and educators. Compare at perplexity.ai/pro.
Free gives practically unlimited basic searches, a few Pro Searches a day, one Research query a month and limited uploads. Upgrade when you hit those limits often, not before, and check the price shown for Australia before you pay.
Go to Account, Preferences, and switch off AI data retention, or open perplexity.ai/account/preferences. It is on by default on Free, Pro and Max. Opting out applies from that date on; data already collected cannot be erased.
Yes. The Standard plan is free and gives practically unlimited basic searches, a few Pro Searches a day, one Research query a month and limited file uploads. Pro and Max add more, and Education Pro is for verified students and educators.
Incognito sessions are started with the icon at the top right. They are not saved to your library, do not use memory or past searches, and expire within 24 hours and cannot be recovered.
Open your library at perplexity.ai/library. Use the three dots beside a session to delete it, or open History, click the three dots at the top right and choose Delete all sessions to clear everything. That cannot be undone.
Perplexity does not support creating passwords. You sign in with Google, Apple or an emailed link or code, so secure that account with two-step verification. Perplexity may also ask some users to verify a phone number by text message.