nowfound

AI · April 6, 2026

HB

Hippo, biologically inspired memory for AI agents

In plain words

Hippo is a memory system for AI agents inspired by biological memory processes. It enables agents to store, retrieve, and learn from past interactions in ways that mimic how brains organize information. The system is designed for developers building AI agents that need to improve performance over time through accumulated experience. Hippo's biologically-inspired approach offers an alternative to traditional database storage methods for AI applications.

written from the facts on this page · September 2026

Does the same job

all alternatives →
  • MemoriMay 2026 · memorilabs.ai · ▲168

    Persistent memory from agent trace, not just conversation

  • Walrus MemoryJun 2026 · walrus.xyz · ▲85

    Enable agents to keep context & work across apps + sessions

  • Observational Memory by MastraFeb 2026 · ▲123

    Give your AI agents human-like memory

  • YourMemoryApr 2026 · ▲93

    AI that remembers and forgets like humans.

  • AM
    AI memory with biological decay (52% recall)Apr 2026 · github.com · ▲98

    Most RAG setups fail because they treat memory like a static filing cabinet. When every transient bug fix or abandoned rule is stored forever, the context window eventually chokes on noise, spiking token costs and degrading the agent's reasoning. This implementation experiments with a biological approach by using the Ebbinghaus forgetting curve to manage context as a living substrate. Memories are assigned a "strength" score where each recall reinforces the data and flattens its decay curve (spaced repetition), while unused data eventually hits a threshold and is pruned. To solve the…

  • MCP Memory – Fast Agent Memory Using Google's OKF and SQLite FTS524d ago · github.com · ▲70

    An OKF-backed Model Context Protocol (MCP) server delivering persistent long-term memory and SQLite FTS5 search for AI agents. - fellowgeek/mcp-memory

More ai this month

the category →
  • I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.

    AI · 17d ago · simedw.com

  • Astute585

    Automate your B2B brand going viral, with new media creators

    AI · 18d ago · company-app.joinastute.com

  • Grok Bot547

    AI teammates that you can give real work to

    AI · 25d ago · x.ai

  • Hey HN, Henry from Cactus here! We previously released Cactus Needle, a 14MB agentic LLM for tool call, device use, and structured extraction for phones, wearables, smart homes, small robots and microcontrollers. We got really great feedback here, and have now incorporated the suggestions to release Needle 2. The whole model is a single 14MB binary that runs a full session in 28MB of RAM; 45m parameters at 2bit compression. Needle hits 500 tokens/sec decode speed on a Raspberry Pi 5, sits between 400-1,500 tokens/sec on VR devices like Meta Quest 3S and Apple Vision Pro, and ranges…

    AI · 27d ago · cactuscompute.com

  • Turn website visitors into qualified pipeline

    AI · 19d ago · clarasdr.ai

  • Kane CLI446

    Natural language browser & mobile app tests from terminal

    AI · 24d ago · testmuai.com

Launched alongside, April 2026

the whole month →
  • Brila1,367

    One-page websites from real Google Maps reviews

    AI · Apr 2026 · brila.ai

  • AG

    Thought the resources for GPU arch were lacking, so here we are

    Life & fun · Apr 2026 · jaso1024.com

  • IB

    Built a ~9M param LLM from scratch to understand how they actually work. Vanilla transformer, 60K synthetic conversations, ~130 lines of PyTorch. Trains in 5 min on a free Colab T4. The fish thinks the meaning of life is food. Fork it and swap the personality for your own character.

    AI · Apr 2026 · github.com

  • AI meeting notes: now bot-free, in ChatGPT & Claude + more

    AI · Apr 2026 · fathom.ai

  • BC

    Life & fun · Apr 2026 · sam-burns.com

  • IB

    With social media and now AI, its important to keep the indie web alive. There are many people who write frequently. Blogosphere tries to highlight them by fetching the recent posts from personal blogs across many categories. There are two versions: Minimal (HN-inspired, fast, static): https://text.blogosphere.app/ Non-minimal: https://blogosphere.app/ If you don't find your blog (or your favorite ones), please add them. I will review and approve it.

    AI · Apr 2026 · text.blogosphere.app