MemGPT

Try out our MemGPT chatbot on Discord!

⭐ NEW: You can now run MemGPT with local LLMs and AutoGen! ⭐

🤖 Create perpetual chatbots with self-editing memory!

🗃️ Chat with your data - talk to your SQL database or your local files!

SQL Database

Local files

📄 You can also talk to docs - for example ask about LlamaIndex!

ChatGPT (GPT-4) when asked the same question:

(Question from run-llama/llama_index#7756)

Quick setup

Join Discord and message the MemGPT bot (in the #memgpt channel). Then run the following commands (messaged to "MemGPT Bot"):

• /profile (to create your profile)
• /key (to enter your OpenAI key)
• /create (to create a MemGPT chatbot)

Make sure your privacy settings on this server are open so that MemGPT Bot can DM you:
MemGPT → Privacy Settings → Direct Messages set to ON

You can see the full list of available commands when you enter / into the message box.

What is MemGPT?

Memory-GPT (or MemGPT in short) is a system that intelligently manages different memory tiers in LLMs in order to effectively provide extended context within the LLM's limited context window. For example, MemGPT knows when to push critical information to a vector database and when to retrieve it later in the chat, enabling perpetual conversations. Learn more about MemGPT in our paper.

Running MemGPT locally

Install MemGPT:

pip install pymemgpt

To update the package, run

pip install pymemgpt -U

Add your OpenAI API key to your environment:

# on Linux/Mac
export OPENAI_API_KEY=YOUR_API_KEY

# on Windows
set OPENAI_API_KEY=YOUR_API_KEY

# on Windows (PowerShell)
$Env:OPENAI_API_KEY = "YOUR_API_KEY"

To run MemGPT for as a conversation agent in CLI mode, simply run memgpt:

memgpt

Debugging command not found

If you get command not found (Linux/MacOS), or a CommandNotFoundException (Windows), the directory where pip installs scripts is not in your PATH. You can either add that directory to your path (pip show pip | grep Scripts) or instead just run:

python -m memgpt

Building from source

Clone this repo: git clone https://github.com/cpacker/MemGPT.git

Using poetry:

1. Install poetry: pip install poetry
2. Run poetry install
3. Run poetry run memgpt

Using pip:

1. Run pip install -e .
2. Run python3 main.py

If you're using Azure OpenAI, set these variables instead:

# see https://github.com/openai/openai-python#microsoft-azure-endpoints
export AZURE_OPENAI_KEY = ...
export AZURE_OPENAI_ENDPOINT = ...
export AZURE_OPENAI_VERSION = ...

# set the below if you are using deployment ids
export AZURE_OPENAI_DEPLOYMENT = ...
export AZURE_OPENAI_EMBEDDINGS_DEPLOYMENT = ...

# then use the --use_azure_openai flag
memgpt --use_azure_openai

To create a new starter user or starter persona (that MemGPT gets initialized with), create a new .txt file in ~/.memgpt/humans or ~/.memgpt/personas, then use the --persona or --human flag when running main.py. For example:

# assuming you created a new file ~/.memgpt/humans/me.txt
memgpt
# Select me.txt during configuration process

-- OR --

# assuming you created a new file ~/.memgpt/humans/me.txt
memgpt --human me.txt

You can also specify any of the starter users in /memgpt/humans/examples or any of the starter personas in /memgpt/personas/examples.

GPT-3.5 support

You can run MemGPT with GPT-3.5 as the LLM instead of GPT-4:

memgpt
# Select gpt-3.5 during configuration process

-- OR --

memgpt --model gpt-3.5-turbo

Note that this is experimental gpt-3.5-turbo support. It's quite buggy compared to gpt-4, but it should be runnable.

Please report any bugs you encounter regarding MemGPT running on GPT-3.5 to letta-ai#59.

Local LLM support

You can run MemGPT with local LLMs too. See instructions here and report any bugs/improvements here letta-ai#67.

main.py flags

--first
  allows you to send the first message in the chat (by default, MemGPT will send the first message)
--debug
  enables debugging output

Configure via legacy flags

--model
  select which model to use ('gpt-4', 'gpt-3.5-turbo-0613', 'gpt-3.5-turbo')
--persona
  load a specific persona file
--human
  load a specific human file
--archival_storage_faiss_path=<ARCHIVAL_STORAGE_FAISS_PATH>
  load in document database (backed by FAISS index)
--archival_storage_files="<ARCHIVAL_STORAGE_FILES_GLOB_PATTERN>"
  pre-load files into archival memory
--archival_storage_files_compute_embeddings="<ARCHIVAL_STORAGE_FILES_GLOB_PATTERN>"
  pre-load files into archival memory and also compute embeddings for embedding search
--archival_storage_sqldb=<SQLDB_PATH>
  load in SQL database

Interactive CLI commands

These are the commands for the CLI, not the Discord bot! The Discord bot has separate commands you can see in Discord by typing /.

While using MemGPT via the CLI (not Discord!) you can run various commands:

//
  toggle multiline input mode
/exit
  exit the CLI
/save
  save a checkpoint of the current agent/conversation state
/load
  load a saved checkpoint
/dump
  view the current message log (see the contents of main context)
/memory
  print the current contents of agent memory
/pop
  undo the last message in the conversation
/heartbeat
  send a heartbeat system message to the agent
/memorywarning
  send a memory warning system message to the agent

Example applications

Use MemGPT to talk to your Database!

MemGPT's archival memory let's you load your database and talk to it! To motivate this use-case, we have included a toy example.

Consider the test.db already included in the repository.

id	name	age
1	Alice	30
2	Bob	25
3	Charlie	35

To talk to this database, run:

memgpt --archival_storage_sqldb=memgpt/personas/examples/sqldb/test.db

And then you can input the path to your database, and your query.

Please enter the path to the database. test.db
...
Enter your message: How old is Bob?
...
🤖 Bob is 25 years old.

Loading local files into archival memory

MemGPT enables you to chat with your data locally -- this example gives the workflow for loading documents into MemGPT's archival memory.

To run our example where you can search over the SEC 10-K filings of Uber, Lyft, and Airbnb,

1. Download the .txt files from Hugging Face and place them in memgpt/personas/examples/preload_archival.

2. In the root MemGPT directory, run

   memgpt --archival_storage_files="memgpt/personas/examples/preload_archival/*.txt" --persona=memgpt_doc --human=basic

If you would like to load your own local files into MemGPT's archival memory, run the command above but replace --archival_storage_files="memgpt/personas/examples/preload_archival/*.txt" with your own file glob expression (enclosed in quotes).

Enhance with embeddings search

In the root MemGPT directory, run

memgpt main.py --archival_storage_files_compute_embeddings="<GLOB_PATTERN>" --persona=memgpt_doc --human=basic

This will generate embeddings, stick them into a FAISS index, and write the index to a directory, and then output:

  To avoid computing embeddings next time, replace --archival_storage_files_compute_embeddings=<GLOB_PATTERN> with
    --archival_storage_faiss_path=<DIRECTORY_WITH_EMBEDDINGS> (if your files haven't changed).

If you want to reuse these embeddings, run

memgpt --archival_storage_faiss_path="<DIRECTORY_WITH_EMBEDDINGS>" --persona=memgpt_doc --human=basic

Talking to LlamaIndex API Docs

MemGPT also enables you to chat with docs -- try running this example to talk to the LlamaIndex API docs!

1. a. Download LlamaIndex API docs and FAISS index from Hugging Face.

   # Make sure you have git-lfs installed (https://git-lfs.com)
   git lfs install
   git clone https://huggingface.co/datasets/MemGPT/llamaindex-api-docs
   mv llamaindex-api-docs

   -- OR --

   b. Build the index:

   1. Build llama_index API docs with make text. Instructions here. Copy over the generated _build/text folder to memgpt/personas/docqa.
   2. Generate embeddings and FAISS index.

      cd memgpt/personas/docqa
      python3 scrape_docs.py
      python3 generate_embeddings_for_docs.py all_docs.jsonl
      python3 build_index.py --embedding_files all_docs.embeddings.jsonl --output_index_file all_docs.index
      

2. In the root MemGPT directory, run

   memgpt --archival_storage_faiss_path=<ARCHIVAL_STORAGE_FAISS_PATH> --persona=memgpt_doc --human=basic

   where ARCHIVAL_STORAGE_FAISS_PATH is the directory where all_docs.jsonl and all_docs.index are located. If you downloaded from Hugging Face, it will be memgpt/personas/docqa/llamaindex-api-docs. If you built the index yourself, it will be memgpt/personas/docqa.

Support

If you have any further questions, or have anything to share, we are excited to hear your feedback!

• By default MemGPT will use gpt-4, so your API key will require gpt-4 API access
• For issues and feature requests, please open a GitHub issue or message us on our #support channel on Discord

Datasets

Datasets used in our paper can be downloaded at Hugging Face.

🚀 Project Roadmap

• Release MemGPT Discord bot demo (perpetual chatbot)
• Add additional workflows (load SQL/text into MemGPT external context)
• Integration tests
• Integrate with AutoGen (discussion)
• Add official gpt-3.5-turbo support (discussion)
• CLI UI improvements (issue)
• Add support for other LLM backends (issue, discussion)
• Release MemGPT family of open models (eg finetuned Mistral) (discussion)

Development

Reminder: if you do not plan on modifying the source code, simply install MemGPT with pip install pymemgpt!

First, install Poetry using the official instructions here.

Then, you can install MemGPT from source with:

git clone [email protected]:cpacker/MemGPT.git
poetry shell
poetry install

We recommend installing pre-commit to ensure proper formatting during development:

pip install pre-commit
pre-commit install
pre-commit run --all-files

Contributing

We welcome pull requests! Please run the formatter before submitting a pull request:

poetry run black . -l 140