Three AIs. One shared context.

Keep a consistent project context across ChatGPT, Claude, and Gemini — without copy-pasting the same paragraph three times a day. Works inside the tools you already use, not as a wrapper.

In 30 seconds

Serious users don't pick one AI — they send reasoning to Claude, iteration to ChatGPT, and research to Gemini, sometimes in the same ten minutes. The real cost isn't the subscriptions; it's retyping the same project context into every new chat. Memdex fixes that by auto-saving every conversation locally, then surfacing the relevant past chat from any tool as you start typing in any other tool. One context layer, three native UIs.

  • Keep using ChatGPT, Claude, and Gemini in their own tabs — Memdex doesn't replace them.
  • As you type in any of them, relevant past conversations from all three appear inline.
  • One click injects the full past thread into the current AI — preserving turns and formatting.
  • All conversations stay on your device, encrypted. The workflow doesn't move your data to a wrapper.

The hidden cost of running three AIs in three tabs

The standard 2026 power-user setup is three AI tabs always open. Claude for planning a tricky decision. ChatGPT for writing the actual thing. Gemini for pulling in research. The friction isn't the tools — it's the fact that context doesn't travel between them, so you end up pasting the same three paragraphs of background over and over. Memdex is for the day that stops.

THE TRANSLATION TAX

You pay the 're-explain' tax on every new chat

Every fresh Claude chat, every new ChatGPT thread, every Gemini session starts from zero. You paste the project brief. Again. And again. A week of this is hours of pure typing overhead.

TAB TOIL

Switching tabs to copy from one AI to another is its own tax

Finding the right ChatGPT thread to paste into Claude requires a sidebar hunt. Copy-paste breaks code blocks. Long prompts overflow. By the time the context is in Claude, the thought has moved on.

NO MEMORY BRIDGE

Native memories don't share — not with each other, not with you

ChatGPT's memory stays in ChatGPT. Claude's stays in Claude. If you've explained your codebase to both, you've explained it twice — and there's no button that says 'show me what I've already told these three tools about this project.'

PORTABLE CONTEXT

Context should be yours, not the vendor's

What you need is a layer above the individual tools — one place all three chats live, surfaced in any of them, owned by you. That's a design problem no single AI vendor will solve for you, because it crosses their moats.

How Memdex keeps context consistent across three AIs

One capture layer. Every AI. Surfaces the right past thread in whichever tool you happen to be in.

01CAPTURE ALL THREE

ChatGPT, Claude, and Gemini — all auto-saved

Open the three tabs you already work in. Memdex quietly captures every conversation across all of them into one encrypted local index. No prompts, no sign-up.

02CROSS-TOOL DETECT

Start typing anywhere — matches come from everywhere

When you begin a new Claude chat about a project you discussed in ChatGPT yesterday, Memdex highlights the ChatGPT thread inline. The origin tool doesn't matter — you see every relevant past conversation no matter where it happened.

03INJECT IN PLACE

The current AI reads the past chat natively

Click once and the full conversation — with role markers and formatting — is attached to your current prompt in whichever tool you're in. No wrapper UI. The tool reads it as a proper dialogue, not a pasted dump.

Memdex vs. other multi-AI tools

The common multi-AI tools send one prompt to several models. That's useful — but it's not the problem Memdex is designed to solve.

CapabilityMemdexChatHubMonicaMultiple.chat
Use each AI in its native UI (not a wrapper)
Share the same context across ChatGPT, Claude, Gemini
Surface relevant past conversations as you type
Send one prompt to multiple models side-by-side
Store conversations 100% locally
Works with enterprise/Pro accounts of each AI

ChatHub, Monica, and Multiple.chat are all 'send one prompt to several models' tools and a great fit for quick comparisons. They're complementary to Memdex, not competitive — Memdex is for the ongoing workflow in each tool's native chat.

Frequently asked

Keep using each in its native tab — don't settle for a wrapper that degrades them. Install Memdex so your full conversation history is auto-captured across all three and surfaced as context wherever you start typing next. You get the best of every tool, without retyping the same project background.

Three AIs. One context. Yours.

Use ChatGPT, Claude, and Gemini together — without re-explaining | Memdex