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what is hindsight fr?

vectorize-io/hindsight — explained in plain English

Analysis updated 2026-06-24

13,239PythonAudience · developerComplexity · 3/5LicenseSetup · moderate

tl;dr

A memory system for AI agents that lets them retain, recall, and reflect on information across sessions, ranked first on the LongMemEval benchmark for memory accuracy.

vibe map

mindmap
  root((repo))
    What It Does
      Persistent AI memory
      Cross-session recall
      Agent learning
    Core Operations
      Retain a fact
      Recall relevant info
      Reflect and respond
    Deployment
      Python embedded
      Docker server
      Cloud hosted
    Integrations
      OpenAI
      Anthropic
      Groq and Gemini

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what do people make with this?

VIBE 1

Add persistent memory to any AI agent in two lines of code by wrapping your existing model connection.

VIBE 2

Keep each user's memories separate by tagging stored facts with a user ID in the metadata.

VIBE 3

Run the memory server with Docker and connect it to your own PostgreSQL database for full data control.

VIBE 4

Build an AI assistant that learns from user corrections over time rather than forgetting at the end of each session.

what's the stack?

PythonJavaScriptDockerPostgreSQL

how it stacks up fr

vectorize-io/hindsightnikopueringer/corridorkeydlr-rm/stable-baselines3
Stars13,23913,23313,253
LanguagePythonPythonPython
Setup difficultymoderatemoderatemoderate
Complexity3/53/53/5
Audiencedeveloperdesignerresearcher

Figures from each repo's GitHub metadata at analysis time.

how do i run it?

Difficulty · moderate time til it works · 30min

Requires Docker for the server, or PostgreSQL/Oracle for persistent storage, a fully embedded Python mode is available with no extra infra.

MIT, use freely for any purpose, including commercial, as long as you keep the copyright notice.

in plain english

Hindsight is a memory system for AI agents, the software programs that carry out tasks or hold conversations on a user's behalf. The README's main argument is that most existing memory tools just recall past conversation, while Hindsight is meant to help an agent actually learn from experience over time, not only remember what was said. To explain the idea in plain terms: an AI model on its own forgets everything once a session ends. Hindsight gives it a place to store facts and to look them back up later. The README describes three core operations with simple names: retain, which saves a piece of information, recall, which searches for relevant stored memories, and reflect, which produces a considered response based on what has been stored. Memories are grouped into named banks, and extra metadata can be attached so that, for example, each user's memories stay separate. The project makes strong performance claims. It says it scored highest on a public benchmark called LongMemEval that measures memory accuracy, and notes that those results were independently reproduced by researchers at Virginia Tech and by The Washington Post, while competitors' scores are self-reported. It also states it is used in production at large enterprises. These are the authors' claims as written in the README. There are several ways to add it to an agent. The simplest is a wrapper that replaces your existing connection to a language model with two lines of code, after which memory happens automatically. For more control there is an API with Python and JavaScript client libraries. You can run the server with Docker, connect it to your own PostgreSQL or Oracle database, or run a fully embedded Python version with no separate server. It works with several model providers, including OpenAI, Anthropic, Gemini, Groq, and local options. The code is released under the MIT license, and the README links to documentation, a research paper, and a hosted cloud version.

prompts (copy fr)

prompt 1
I'm integrating vectorize-io/hindsight into my Python AI agent. Show me the two-line wrapper setup to add automatic memory.
prompt 2
Using hindsight, how do I create separate memory banks for different users so their memories never mix?
prompt 3
Help me deploy the hindsight Docker server and connect it to my existing PostgreSQL database.
prompt 4
I'm using hindsight with OpenAI. Show me how to use the reflect operation to generate a response that draws on stored memories.

Frequently asked questions

what is hindsight fr?

A memory system for AI agents that lets them retain, recall, and reflect on information across sessions, ranked first on the LongMemEval benchmark for memory accuracy.

What language is hindsight written in?

Mainly Python. The stack also includes Python, JavaScript, Docker.

What license does hindsight use?

MIT, use freely for any purpose, including commercial, as long as you keep the copyright notice.

How hard is hindsight to set up?

Setup difficulty is rated moderate, with roughly 30min to a first successful run.

Who is hindsight for?

Mainly developer.

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