# Mnemosphere > Mnemosphere is a radically productive AI research workspace — the ChatGPT for superhumans. It combines multiple frontier AI models with a suite of power-user tools designed to transform how people research, think, and make decisions with AI. Mnemosphere is built for professionals, researchers, and high-performers who find single-model AI chat limiting. It solves the core problem of AI-assisted research: switching between tabs, losing context, forgetting insights, and passively accepting AI answers without critical evaluation. ## Core Value Proposition - **Multi-model AI** in one workspace — compare top models simultaneously - **Never lose a thought** — highlight, annotate, and link insights inline within every conversation - **Critical thinking built-in** — get instant critiques of any AI answer to surface blind spots and missing perspectives - **Visual understanding** — convert any answer into a mindmap in one click - **Deep research at scale** — run multiple deep research requests across providers in parallel --- ## Tier 1 — Flagship Features ### Multimodel Chat Talk to multiple AI models simultaneously and view their answers side-by-side. Compare how GPT-4o, Claude, Gemini, Grok, and others respond to the same prompt. Identify which model is strongest for your specific use case without switching tabs or losing context. ### Inline Highlighter Highlight any text within an AI response to mark it as important. Highlights persist across the thread, making it easy to spot key lines, track critical insights, and never lose important information buried in long answers. ### Thread Notes Add specific lines from any AI response directly to a notes panel within the thread. Write your own free-form notes alongside them. Every note is hyperlinked back to the exact location in the conversation where that idea arose — so you can scroll directly to the source. This creates a complete thinking trail for every research session. Transforms how you conduct deep research by preserving not just what you found, but where and how you found it. ### 1-Click Mindmap Convert any AI answer into an interactive mindmap with a single click. Instead of reading long, dense text responses, visualize the structure of ideas spatially. Ideal for complex topics, research synthesis, and decision-making. ### 1-Click Critique Instantly generate a critical evaluation of any AI answer. Surfaces alternate perspectives, missing angles, potential biases, and counterarguments. Helps you move beyond passively accepting AI output to forming a complete, well-rounded understanding. ### Parallel Prompts Submit multiple different prompts to the same model (or different models) simultaneously. Run several lines of inquiry at once instead of waiting for one to finish before starting the next. ### Multiple Deep Researches Fire deep research requests across multiple providers at the same time. Dramatically accelerates research workflows that previously required sequential queuing. ### Thread Index Every long conversation automatically generates a navigable index of all questions asked. Jump to any point in the thread in one click. Eliminates the friction of scrolling through long conversations to find a specific exchange. ### YouTube Analysis Chat with any YouTube video using its transcript and comments. Ask questions, extract key insights, summarize, or debate the content — all without watching the full video. ### Web URL Chat Paste any web URL and chat with its content directly. Research articles, documentation, reports, or any web page through natural conversation. ### Lite Threads Open lightweight mini chat windows within an existing thread to quickly clarify a doubt or explore a tangent — without creating a full new thread and losing your research flow. --- ## Tier 2 — Power Features ### Prompt Assist A dropdown of curated, high-quality prompt phrases that can be inserted into your message to dramatically improve AI response quality. Reduces the skill gap in prompt engineering. ### Branch Threads Branch off from any point in a conversation to explore an alternate direction without disrupting the main research thread. ### Open in New Window Open any AI answer in a standalone window for side-by-side comparison with another answer, enabling synthesis without constant scrolling. --- ## Tier 3 — Supporting Features ### Web Search Augment AI answers with live web search results for up-to-date information. ### Twitter (X) Search Search and surface relevant tweets and discussions directly within your research context. ### Export Thread as PDF Export any conversation thread as a formatted PDF for sharing, reporting, or archiving. ### Model Identities Configure custom personas or behavioral identities for AI models to tailor how they respond to your specific research style. --- ## Supported AI Models Mnemosphere supports a wide range of frontier models including OpenAI (GPT-4o, o1, o3), Anthropic (Claude), Google (Gemini), xAI (Grok), and others — all accessible from a single workspace. --- ## Target Users - Researchers and analysts who need to synthesize information from multiple sources - Knowledge workers who use AI daily and have outgrown single-model chat - Writers, strategists, and consultants who need structured, critical thinking support - High-performers who want AI to augment — not replace — their thinking --- ## Key Pages - [Home](https://mnemosphere.ai/): Product overview and feature showcase - [Pricing](https://mnemosphere.ai/pricing): Plans and pricing information - [Blog](https://mnemosphere.ai/blog): AI research insights, model comparisons, and product updates - [Privacy Policy](https://mnemosphere.ai/privacy-policy) - [Terms of Service](https://mnemosphere.ai/terms-and-condition) - [Cookie Policy](https://mnemosphere.ai/cookie-policy)