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Top 6 AI Agent Memory

We tested and reviewed the best ai agent memory tools in 2026. Every tool is evaluated on functionality, UX, pricing, and real-world performance.

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A

mem0

mem0ai

memory

mem0 by mem0ai is a AI-powered tool and platform. featuring intelligent automation and smart processing.

8.1/10Grade A
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A

letta

letta-ai

memory

Letta is the platform for building stateful agents: AI with advanced memory that can learn and self-improve over time.

8.0/10Grade A
C
B

cognee

topoteretes

memory

Knowledge Engine for AI Agent Memory in 6 lines of code

7.8/10Grade B
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B

scalene

plasma-umass

memory

Scalene: a high-performance, high-precision CPU, GPU, and memory profiler for Python with AI-powered optimization proposals

7.8/10Grade B
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C

Memary

kingjulio8238

memory

The Open Source Memory Layer For Autonomous Agents

6.9/10Grade C
B
C

bondai

krohling

memory

BondAI is an open-source tool for developing AI Agent Systems. BondAI handles the implementation complexities including memory/context management, error handling, vector/semantic search and includes a

6.8/10Grade C