Talk to every model at once. Turn answers into mindmaps. Fire parallel prompts. Mnemosphere is the AI research tool power users switched to.
We only ship with frontier models. When a lab drops a new flagship, you get it here the moment it's live.
GPT-5.4
Claude 4.6 Sonnet
Grok 4.1GPT-5.3GPT-5.4 · AnswerRecent studies show rapid consolidation. Between 2018 and 2023, concentration in AI research has nearly doubled.
Growth has been driven by a handful of labs, on the assumption that compute scales linearly with capability — which may not hold.
The second-order effects are harder to model. This creates a new class of regulatory risk that few are tracking.
The downstream effects compound across jurisdictions and are difficult to isolate in a single framework.
Hover the demo to pause. Click any chip to see that use case.
Summarize how the EU AI Act affects most commercial AI deployments.
GPT-5.4 · AnswerThe EU AI Act introduces a risk-tiered framework classifying systems by their potential for harm.
Most commercial deployments will fall under “limited risk,” requiring only transparency obligations.
Compliance costs should remain manageable for most companies.
Every one of these exists because we asked power users what ChatGPT was missing. Then we built it.
Watch a 2-hour video in 30 seconds
Paste any link. Query the transcript, the comments, the key moments — like it was a document.
Run 3 deep researches at once
Fire deep research requests to OpenAI, Gemini, and Perplexity in parallel. Compare outputs instantly and move with confidence.
Write prompts like a pro
A dropdown of power phrases drops into your prompt in one tap. Better inputs, better answers — no prompt-engineering degree required.
Side-quests without leaving
Quick clarifications pop up as mini-chats. Your main thread stays clean, your focus unbroken.
A table of contents for your chat
Jump across a 100-question conversation in a single click. Long threads stay easy to navigate.
Compare answers side-by-side
Pop any two answers into their own windows. Stop scrolling up and down — synthesize them in a single glance.
Reviewers who've seen every AI launch. Builders who ship AI products themselves. Here's what they said.
Considering that ChatGPT and Claude are targeting median user needs, Mnemosphere is the doctor's scalpel to the ordinary person's butter knife.
The multi-model threads are genius — I always end up juggling tabs just to see how Claude and ChatGPT would answer differently. Love how you’re making messy research actually manageable.
Mnemosphere sounds like a game changer for anyone who thrives in deep research. The features like instant mindmaps and multi-model threads seem perfect for untangling complex topics.
Whether you research, build, or learn — Mnemosphere is the layer between your brain and every frontier model.
For researchers
You read 40 papers a week. You need to synthesize, not skim. Multimodel catches contradictions. Mindmaps collapse 30 pages into one view. Notes preserve every thread of reasoning.
"I finish literature reviews in a third of the time — and I trust them more."
For founders
You ship fast and decide faster. Parallel prompts research a market in minutes. Critique exposes weak assumptions before you pitch. Lite threads keep side-questions from derailing you.
"It's like having a strategy team, an analyst, and a devil's advocate in one tab."
For students
You don't just want answers — you want to understand. Mindmaps show how ideas connect. Critique teaches you to question. YouTube + notes turn any lecture into an interactive study guide.
"My notes now show me where every idea came from. Studying finally makes sense."
Every feature below is live in Mnemosphere today. None of them exist in ChatGPT, Claude, Gemini, or Grok.
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GPT-o3Claude Sonnet 4.6 & Opus 4.6Grok 4.1Already have an account? Log in to manage your subscription. Try free
Every frontier model, the moment it ships. No swapping subscriptions when a new flagship drops.
Flagship models
Reasoning models
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