Gemini Context Mentions: Reference a Past Chat with @@ (2026)
Type @@ in the Gemini prompt box with AI Toolbox (formerly Gemini Toolbox) installed, pick a past conversation, and its content is pulled into your current message, so Gemini has the earlier context without you copying and pasting. Unlike Gemini's automatic background recall, you choose exactly which conversation to bring in, on demand. Trusted by 25,000+ active users with a 4.5/5 Chrome Web Store rating. Free plan available.
By Adi Leviim, Co-Founder at Infi Developments, 7+ years building AI productivity tools.
How Is This Different from Gemini's Own Memory?
Gemini can recall details from your past chats automatically through its personalization and memory features, but that recall is automatic and opaque, you cannot point it at one specific conversation and say "use this." When you need a particular thread brought into the current prompt in full, Gemini's background memory does not give you that precise, on-demand control.
Context Mentions does. Typing @@ opens a searchable dropdown of your past conversations, and selecting one injects that exact chat's content into your current prompt. You decide which conversation matters and when, instead of hoping the model recalls the right thing. It all happens from the composer, without leaving the chat you are in.
How to Use @@ Context Mentions on Gemini
Context Mentions lives in the prompt box, so referencing an old chat is part of typing your message.
Install AI Toolbox from the Chrome Web Store and open gemini.google.com.
In any chat, type @@ in the prompt box. A dropdown of your past conversations appears.
Search by title and select the conversation you want to bring in.
AI Toolbox inserts that conversation's context into your prompt. Finish your message and send as usual.
Short conversations are inserted directly so Gemini sees the original exchange message by message. Long conversations are condensed into a focused summary before insertion, so you get the relevant context without exceeding the prompt limit. Either way, the earlier chat informs Gemini's next answer with no copy-paste.
Gemini Memory vs Context Mentions
Capability
Gemini memory (native)
AI Toolbox Context Mentions
Choose a specific chat to reference
No, automatic recall
Yes, you pick it
Search past chats from the composer
No
Yes
See exactly what context was added
Opaque
Inserted into your prompt
Handle a very long source chat
Not applicable
Auto-summarized to fit
Reference several chats at once
No
Yes, on Premium
Price
Included with Gemini
Free for 3 mentions/day, then $9.99/mo or $99 lifetime
When Context Mentions Earns Its Keep
The feature shines whenever the thing you need is in a different chat and you want it brought in exactly. Continue a design discussion from yesterday inside today's implementation chat. Bring a requirements thread into a drafting session. Feed an earlier research conversation into a new analysis. Reference your notes chat while writing a summary. Instead of relying on automatic recall, you point Gemini at the conversation that already has what you need.
Context Mentions works hand in hand with the rest of the toolkit: organize source chats with Smart Tags and folders so the right conversation is easy to find when you type @@. AI Toolbox is also available for the ChatGPT and Claude modules, so cross-conversation context follows you across every AI you use.
Free vs Premium for Context Mentions
The free plan includes 3 context mentions per day, one per message, which is enough to feel how much faster cross-chat work becomes. Premium ($9.99/month or $99 one-time lifetime) removes the daily cap and lets you reference several conversations in a single prompt, and the same plan unlocks full-text search, folders, and Smart Tags on Gemini. If you use more than one AI, the All Access Lifetime ($149) covers the ChatGPT, Gemini, and Claude modules in one purchase and saves $148 versus three single-platform Lifetimes. All paid plans include a 14-day money-back guarantee.
Stop re-explaining context to Gemini. Type @@ to pull any past conversation into your prompt, exactly the one you want. Trusted by 25,000+ users with a 4.5/5 Chrome Web Store rating. Compare Gemini plans →
Who Context Mentions Is For
Developers carry an architecture chat into each new implementation thread. Writers reference a research conversation while drafting. Product and ops teams bring a requirements or notes chat into a planning session. Students pull an earlier explanation into a follow-up question. Anyone whose work spans more than one Gemini conversation gets the earlier context in two keystrokes, on demand.
Frequently Asked Questions
Can Gemini reference a specific previous conversation?
Gemini can recall details from past chats automatically, but it does not let you pick one specific conversation to bring into a prompt. AI Toolbox adds Context Mentions: type @@, choose a past chat, and its content is inserted into your current message on demand.
What does typing @@ in Gemini do?
With AI Toolbox installed, @@ opens a searchable dropdown of your past conversations. Selecting one injects that chat's context into your current prompt so Gemini can answer with the earlier information in place.
How is this different from Gemini's memory?
Gemini's memory recalls things automatically and opaquely. Context Mentions is manual and precise: you choose exactly which conversation to reference and see it added to your prompt, so you control the context instead of relying on background recall.
How many context mentions are free?
The free plan includes 3 mentions per day, one per message. Premium ($9.99/month or $99 lifetime) removes the daily cap and allows multiple mentions in a single prompt. A 14-day money-back guarantee applies to paid plans.
Is my conversation data kept private?
Yes. AI Toolbox is a local Chrome extension and your daily usage is tracked in your browser. Your conversations stay in your Google account; only the context you choose to mention is placed into your prompt.
Does AI Toolbox work on browsers other than Chrome?
AI Toolbox runs on all Chromium browsers, including Chrome, Edge, Brave, Opera, and Arc. It does not support Firefox or Safari.
A Full Stack Developer with 7+ years of experience building AI productivity tools. Leads product development and frontend architecture for AI Toolbox, the Chrome extension suite (ChatGPT, Gemini, and Claude modules) that helps users search, organize, and export their AI conversations.
Adi Leviim