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Alternatives

Products that do what Own your AI's context and memories across every model and device does

Hey HN, I pay for ChatGPT, Claude, Cursor, and use Gemini through work. Four vendors, four separate conversation histories, four profiles of how I think. None of them talk to each other. Switch providers and you start over. So I built a system where the memory is mine. I run a knowledge graph in Postgres (Supabase, free tier) with pgvector for semantic search. A small MCP server reads and writes to it. That server sits behind an MCP Gateway on a $6/month VPS, along with Brave Search and a GitHub server. TypingMind connects to the gateway as a BYOK client -- any model, any device, same…

  1. 1

    ChatGPT for your video library, with unlimited video context

    2025

  2. 2
    Memoriq130

    Your private AI memory for ChatGPT, Claude, Gemini and Grok

    Jun 2026 · memoriq.me

  3. 3IB

    Hi HN, I built this out of frustration of the evergrowing list of AI models and features to try and to fit my workflow. The visual approach clicks for me so i went with it, it provides more freedom and control of the outcome, because predictable results and increased productivity is what I’m after when using conversational AI. The app is packed with features, my most used are prompt library, voice input and text search, narration is useful too. The app is local-first and works right in the browser, no sign up needed and it's absolutely free to try. BYOAK – bring your own API Keys. Let me…

    2024 · grafychat.com

  4. 4

    Persistent memory for Claude, ChatGPT & Cursor. Free.

    May 2026 · github.com

  5. 5CO

    I keep running in the same problem of each AI app “remembers” me in its own silo. ChatGPT knows my project details, Cursor forgets them, Claude starts from zero… so I end up re-explaining myself dozens of times a day across these apps. The deeper problem 1. Not portable – context is vendor-locked; nothing travels across tools. 2. Not relational – most memory systems store only the latest fact (“sticky notes”) with no history or provenance. 3. Not yours – your AI memory is sensitive first-party data, yet you have no control over where it lives or how it’s queried. Demo video:…

    2025 · github.com

  6. 6

    Captures and stores your chat from various AI platforms

    Mar 2026

  7. 7IM

    This is another one of my automate-my-life projects - I'm constantly asking the same question to different AIs since there's always the hope of getting a better answer somewhere else. Maybe ChatGPT's answer is too short, so I ask Perplexity. But I realize that's hallucinated, so I try Gemini. That answer sounds right, but I cross-reference with Claude just to make sure. This doesn't really apply to math/coding (where o1 or Gemini can probably one-shot an excellent response), but more to online search, where information is more fluid and there's no "right" search engine + text…

    2024 · ithy.com

  8. 8

    Memorr remembers everything across all your AI chats

    Nov 2025

  9. 9

    Effortlessly export chat history from 10 AI platforms

    2025

  10. 10

    AI memory tool that lives where you work

    Jan 2026

  11. 11

    The memory layer that decides what's worth remembering

    13d ago · skynetlab-cortex.com

  12. 12

    Shared persistent memory across all your LLMs.

    Sep 2025

  13. 13

    One memory for Claude, ChatGPT, Cursor and any MCP client

    Jun 2026 · neutrally.app

  14. 14

    Take your AI memory with you across Claude, Gemini, and more

    Apr 2026 · mem-sync.kareverie.com

  15. 15IB

    I'm lost between ChatGPT vs Claude vs Gemini... which subscriptions to take? With Cursor and all these specific AI tools, I just wanted one simple chat app where I can use any model and pay only when I use it. Couldn't find one, so I built one. Pay only for what you use. Your prompts and docs, knowledge bases work with every model - no more copy-pasting between apps. Started as a personal project, but thought someone else might benefit from this too. https://prismharmony.com/chat What do you think?

    2025 · prismharmony.com

  16. 16

    Free master prompts for ChatGPT, Claude, Gemini & more

    Mar 2026 · understandingai.net

  17. 17
    Fermeon26

    Your AI finally remembers you.

    Mar 2026 · fermeon.xyz

  18. 18

    Your AI memories, portable to any platform

    Dec 2025

  19. 19

    Stop repeating yourself to every AI tool you use

    Jul 2026 · github.com

  20. 20

    One memory for ChatGPT, Claude, Gemini, Codex & more

    Jul 2026 · ai-memory-vault.com

  21. 21

    Automate actions & sync context across AI chat sessions

    Jun 2026 · chromewebstore.google.com

  22. 22IM

    Hey HN! Thank you for all the support and feedback on my original submission 2 months ago. I've been improving the backend using a MCTS/AlphaZero approach and it's currently producing much better results. My long term goal is to allow users to manage multiple projects, deployed autonomously, both from scratch and by making continual updates all prompted with natural language. The cost of each project has been lowered to $9 as performance with smaller models has improved (I migrated from Claude-3-Opus to gemini-1.5-flash). Thanks for checking it out!

    2024 · saas-quick.com

  23. 23GV

    Hey HN, I just updated my project that compares some LLMs. It uses your prompt for all the models and runs at the same time. You can see the results being generated in real-time and decide what's the best for your use case. I'm open to any suggestions and feedback. Thanks!

    2024 · geminivsgpt.com

  24. 24IB

    Hi everyone, I’ve been using ChatGPT to analyze my journal entries and to reflect with. It works great, I really liked it. I’ve managed to gain some good insights about myself and made improvements. However, there are a few problems: - ChatGPT only remembers key facts about you, it has limited memories - ChatGPT couldn't recall the content of conversations you had with it - For individual ChatGPT products, your private conversations might be used to train future models (see: https://help.openai.com/en/articles/5722486-how-your-data-is...) So, I decided to build my…

    2025 · pensiv.me

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