How NjectAI works: profiles, the pill in your chat and one shared memory
NjectAI works in three steps. You save your context once as a profile in the NjectAI web app. You write in ChatGPT, Claude, Gemini, Perplexity, Grok or Google AI Mode as usual. Then you click Improve your prompt or Context Inject in the pill inside the message box, and you send the message yourself.
What are the three steps to use NjectAI?
NjectAI needs one setup step outside your AI tool, then two steps inside it each time you write. You build a context profile once, and from then on the pill in the message box brings that context into your chats.
- Save your context once. In the NjectAI web app, answer a short interview about what the profile is for. Depending on the kind of profile, you can also add links and files. See Create a profile.
- Write naturally. Open ChatGPT, Claude, Gemini, Google AI Mode, Perplexity or Grok and type your request in the message box, as rough as you like.
- Improve or inject, then send. Click Improve your prompt to rewrite your draft, or Context Inject to add your saved context to the message. Nothing reaches the AI until you press send.
What are the parts of NjectAI?
NjectAI has two parts you see, the Chrome extension and the web app, and two that work behind them, NjectAI's servers and the MidBrain memory. The extension works inside your AI tool. The web app is where you sign up, build profiles and manage your plan.
| Part | Where you find it | What it does |
|---|---|---|
| The pill | In the message box, once it holds text and the site's send button shows | Two buttons: Improve your prompt and Context Inject (a syringe) |
| Autocomplete | In the message box, as you type | A grey suggestion that continues your prompt; Tab accepts it |
| The Nject button | In the site's header, on pages with a message box | Signed in: your name, Dashboard, Context Profiles (the profile panel) and Logout. Signed out: Get Started and Login |
| The profile bar | Next to the Nject button, in a chat NjectAI has not seen before, once you are signed in | Asks which profile you are using and offers Inject |
| The toolbar menu | The Nject icon in Chrome's toolbar | The Nject and Autocomplete switches, Dashboard and Logout |
| The web app | Your dashboard | Sign-up, the interview, and the tabs Context Profiles, Account Settings, Support and Subscription |
| NjectAI's servers | Behind the extension | Rewrite prompts, suggest text and put your context together |
| MidBrain | Behind NjectAI's servers | Holds the memory: one for your account and one for each profile |
Hover a button on the pill for a moment to see its name. Once per browser session, after you type your first word, the pill also shows each button's name by itself for 3 seconds. The pill, the bar and NjectAI's windows follow the site's light or dark theme.
What happens when I click Improve your prompt?
When you click Improve your prompt, NjectAI sends your draft, the site you are on, your selected profile and the chat's id to its servers. The servers write a new prompt from your draft, your profile and your memory, and the new prompt replaces your text in the message box. Nothing goes to the AI yet: you read it, change it if you like and send it yourself.
The button then reads Replay enhancement and rewrites again on a click, until you edit the text. Improve your prompt takes 3 to 1,000 characters, and it needs Nject Pro and at least one profile. More in Improve your prompt.
What happens when I click Context Inject?
When you click Context Inject, the syringe in the pill, NjectAI shows "Context added. Sends with your next message." and holds your context ready. Your message box does not change while you type. When you press Enter or the send button, NjectAI adds the context after your message, after a blank line, so it is part of what the AI receives and stays visible in the chat.
NjectAI uses the first 1,000 characters of what you have written when you click to pick the facts from your memory that fit it. When you click Inject in the profile bar before you write anything, it uses the message you send. Click the syringe again to clear it ("Context cleared."). A context you added is dropped if you switch to another chat before you send. More in Context Inject.
What does NjectAI send from my chats?
While you are signed in and the Nject switch is on, NjectAI sends every message you send and every AI answer that finishes on the page to your NjectAI memory. Chats that were already on the screen when the page opened are left alone. Both go to your account's personal memory, the same one in every AI tool, with the AI tool's name as a label.
Saving chats needs only sign-in, with or without a plan. There is no separate switch for it: to stop it, switch Nject off in the toolbar menu or sign out. Read Memory for how NjectAI uses what it saves, and Privacy and data for what is kept and what you can delete.
How does one memory work in every AI tool?
Your NjectAI account has one personal memory and one selected profile, and both are the same in every supported AI tool. NjectAI keeps no separate memory per tool: the tool's name is only a label on each saved message. A profile you use in ChatGPT in the morning brings the same context to Claude in the afternoon.
You choose the profile in three places: the Use profile menu in the dashboard, Context Profiles in the Nject button's menu, or the profile bar in a new chat. The choice is saved to your account, so the dashboard and your other browsers follow it. In the extension, None clears the choice. See Choose a profile.
Why did God of Prompt build NjectAI?
NjectAI grew out of God of Prompt, the AI prompt library at godofprompt.ai. While the team worked on a better experience for God of Prompt's users, Robert Youssef had the idea that became NjectAI: deliver the prompt, with your context in it, straight into the AI tool, right where you type. The AI companies compete with each other, so a neutral layer that works with all of them keeps your context with you, whichever AI you open. More in NjectAI and God of Prompt.