What is NjectAI? The Chrome extension for AI memory and better prompts
NjectAI, also called Nject, is a Chrome extension and web app that saves your context in profiles and adds it to your prompts in ChatGPT, Claude, Gemini, Perplexity, Grok and Google AI Mode. One click improves a rough prompt, and one click adds your saved context to the message you send, so you stop retyping who you are.
| At a glance | NjectAI |
|---|---|
| What it is | A Chrome extension, listed as Nject, plus the NjectAI web app |
| Works in | ChatGPT, Claude, Gemini, Google AI Mode, Perplexity, Grok and Grok on X |
| Browser | Chrome, from the Chrome Web Store |
| Plan | Nject Pro: $9 a month or $84 a year, after a 7-day trial |
| Profiles | Up to 10, in three kinds: Text, Image and Search |
| Memory | Powered by MidBrain |
| Security | Tested by Argon Cyber Security in September 2026 |
| Part of | The God of Prompt ecosystem |
| Founder | Robert Youssef, Founder, CEO |
What does NjectAI do?
NjectAI keeps your context in profiles and brings it into the AI tool you already use. It adds a small pill to the message box with two buttons, Improve your prompt and Context Inject, and it suggests the rest of your prompt as you type. You save your context once in the NjectAI web app, and the same profiles work in every supported AI tool.
- Improve your prompt rewrites a rough request into a clearer prompt, built from your draft, your profile and your memory. The new prompt replaces your text, and you send it yourself.
- Context Inject adds your saved context to your next message. It goes out after your text when you press send.
- Autocomplete shows a grey suggestion that continues your prompt. Press Tab to accept it.
- Context profiles hold your interview answers, links and files. You can keep up to 10.
- The profile bar asks which profile you are using when you open a new chat, and adds its context when you click Inject.
- Memory saves the messages you send and the AI's answers to your NjectAI account while you are signed in. NjectAI draws on it when it improves a prompt or adds your context.
Is Nject the same as NjectAI?
Yes. NjectAI is the product's name, and Nject is the name the extension carries in the Chrome Web Store and in its own menus and windows. The plan is called Nject Pro in the web app and in the extension. Whichever name you see, it is the same extension, the same account and the same profiles.
Which AI tools does NjectAI work with?
NjectAI works in 7 places: ChatGPT, Claude, Gemini, Google AI Mode, Perplexity, Grok on grok.com and Grok on X. Improve your prompt, Context Inject, the profile bar and saving chats to memory work in all of them. Autocomplete works everywhere except Google AI Mode. The extension loads only on these sites and on the NjectAI web app. On Google it stays off outside AI Mode, and on X it stays off outside the Grok page.
| AI tool | Improve your prompt | Context Inject | Autocomplete | Saves chats to memory |
|---|---|---|---|---|
| ChatGPT | Yes | Yes | Yes | Yes |
| Claude: chats, projects, Cowork and Claude Code | Yes | Yes | Yes | Yes |
| Gemini | Yes | Yes | Yes | Yes |
| Google AI Mode: AI Mode only | Yes | Yes | No | Yes |
| Perplexity | Yes | Yes | Yes | Yes |
| Grok on grok.com | Yes | Yes | Yes | Yes |
| Grok on X: the Grok page only | Yes | Yes | Yes | Yes |
The AI tool pages linked in the table list the parts of each site NjectAI covers and how it looks there.
Why use one memory across AI tools?
Each AI tool keeps what it remembers about you inside that tool. NjectAI is a neutral layer that works with all of them: your profiles and your memory are stored in your NjectAI account, so the same context is there whichever AI you open.
NjectAI keeps one memory for your account and one for each profile, and no separate memory per AI tool. A message saved in Claude and a message saved in ChatGPT go to the same place. Your context reaches a chat only when you ask for it: with Improve your prompt, with Context Inject, with Inject in the profile bar, or when you accept an Autocomplete suggestion with Tab.
How much does NjectAI cost?
NjectAI has one plan, Nject Pro, at $9 a month or $84 a year. The yearly price works out to $7 a month, 22% less than paying monthly. The plan starts with a 7-day trial, one per customer, and checkout asks for a payment method. Improve your prompt, Context Inject and Autocomplete all need the plan. Plans and billing has the details, including how to cancel.
Who makes NjectAI?
NjectAI is part of the God of Prompt ecosystem, home of the AI prompt library at godofprompt.ai. Robert Youssef is its Founder, CEO, and the company that operates it is PROMPT COPILOT - FZCO, registered in the United Arab Emirates. NjectAI's memory is powered by MidBrain. Argon Cyber Security, a Canadian penetration testing company, ran an independent security assessment of the extension, the web app and the API in September 2026.
To see how the two products fit together, read NjectAI and God of Prompt. For the security assessment and the extension's permissions, read Is NjectAI safe?.
How do I start using NjectAI?
To start, install the extension from the Chrome Web Store, create an account and build your first profile. The quick start walks through each step.
- Add Nject to Chrome from the Chrome Web Store.
- Click Get Started in the extension to create your NjectAI account.
- Answer the short interview to build your first context profile, and start the 7-day trial.
- Open ChatGPT, type a rough request and click Improve your prompt.