Adding Super-Long Memory to AI Agents With an Open-Source Framework Backed by 30,000+ Stars

Written by
Silas Grey
Updated on:June-09th-2025

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Mem0 framework breaks through the long-term memory problem of AI and improves the consistency and accuracy of interaction.
Core content:
1. Mem0 dynamically extracts and integrates dialogue information to solve the memory problem of multiple rounds of dialogue
2. The response accuracy and latency performance are better than traditional methods, which greatly saves resources
3. Hybrid database technology realizes efficient long-term memory management and retrieval


Yang Fangxian
Founder of 53A/Most Valuable Expert of Tencent Cloud (TVP)


How to add ultra-long memory to AI Agent is a very difficult research field. The innovative Mem0 method proposed by mem0.ai effectively solves the memory problem of maintaining long-term consistency in multiple rounds of dialogue by dynamically extracting, integrating and retrieving key information in the dialogue.

And it can quickly retrieve this information when needed, so as to ensure that the Agent maintains consistency and accuracy in long-term interactions.

According to the test data publicly released by mem0.ai, the response accuracy of Mem0 is 26% higher than that of OpenAI's memory method; compared with the full-context method, Mem0's latency is reduced by 91%, and it can save 90% of tokens, which is very affordable for large-scale application on Agent.

Open source address: https://github.com/mem0ai/mem0

The embedding module of the Mem0 framework is mainly responsible for converting text data into vector representation. Each piece of text information is labeled with a unique "digital label", which is presented in the form of a vector, so that the text information can be stored and processed in an efficient and computer-friendly way.

Through this conversion, the computer can quickly and accurately identify and process relevant information during subsequent similarity searches and memory storage. For example, when a user enters a text about "sports events", the embedding module converts it into a specific vector, which contains the semantic, grammatical and other feature information of the text.

When it is necessary to retrieve memories related to sports events, matching content can be quickly found by comparing the similarity of vectors. This method greatly improves the efficiency of memory storage and retrieval, and lays a solid foundation for the efficient operation of intelligent agents.

The large model serves as the "brain" of the intelligent interaction core of the Mem0 framework, responsible for generating and processing natural language text. When users ask questions or communicate with AI agents, the large model module will conduct in-depth analysis and understanding of the input natural language, and then generate reasonable, accurate and contextual responses based on the language knowledge and patterns it has learned.

Take the question "What are the recent popular football matches?" as an example. The large model module will quickly parse this question, understand that the user's intention is to obtain information about recent popular football matches, and then give detailed answers such as "In the recent Premier League, the match between Manchester City and Manchester United has attracted much attention" based on its massive knowledge reserves and strong language generation capabilities.

Its excellent natural language processing capabilities enable the agent to communicate with users smoothly and naturally, providing key support for personalized interaction.

The memory storage module is the key to Mem0's long-term memory. It adopts a hybrid database method to manage and retrieve the long-term memory of the agent.

This hybrid method combines the advantages of multiple database technologies to ensure that different types of information can be stored in the most appropriate and efficient way. For example, for structured data, a relational database may be used to store data to ensure data integrity and consistency;

For unstructured text data, a document database or a vector-based database may be used for storage to facilitate fast similarity search and semantic retrieval. This carefully designed storage method enables fast and efficient data acquisition during subsequent memory retrieval.

For example, when the agent needs to recall a detail about a travel plan that a user mentioned a week ago, the memory storage module can quickly locate and extract relevant information, providing strong support for the large model module to generate accurate responses.

The scoring module will comprehensively evaluate the stored information based on multiple dimensions such as relevance, importance, and recency to determine the importance of the information.

When the agent needs to provide services to users, it may be faced with a large amount of memory information, and not all of this information is directly related to the current task or user needs.

At this time, the scoring module will come into play and evaluate all relevant memory information one by one. For example, if the user is asking questions about the current work project, the scoring module will give priority to memory information closely related to the recent progress of the project, the user's role in the project, and related important decisions, and increase the score of these information;

For other memories that are less relevant to the current project, such as information about hobbies and interests mentioned by the user a few months ago, the score will be reduced accordingly. Therefore, only the most personalized and most valuable contextual information for the current task will be presented to the large model module, allowing the intelligent agent to generate accurate and user-friendly responses based on the most relevant information, greatly improving the quality and effect of the interaction.

Currently, the Mem0 framework and the latest iteration have been open sourced and are very popular on Github with more than 33,000 stars.