
ChainMemory
Mem0
Memori
Pieces for Developers
cognee
TheSecondBrain.dev
Claiv Memory
Persistent memory for Claude Code, Codex & coding agents
SIMA 2
TensorKart
Haddock
Maxim AI
Moemate
ArtHeart.ai
MarioGPT
Artificial intelligence for gaming

Which is more popular?
Website, pricing, platforms and company facts side by side.
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RT
Rival {Theory}
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|---|---|---|
| Website | agent-memory.dev | rivaltheory.com |
| Listed in |
What each product offers, as listed by its team.

Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Agentmemory and Rival {Theory}. For example, how are they different and which one is better?
When comparing Agentmemory and Rival {Theory}, you can also consider the following products.

Portable, verifiable memory for AI agents — works across ChatGPT, Claude, Gemini and any MCP client
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Google's most capable AI agent for virtual 3D worlds
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Your private, local memory layer for all AI tools
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Turn MarioKart in a self-driving similuator
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Persistent memory from agent trace, not just conversation
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Haddock is a tool for automatically generating documentation from annotated Haskell source code.
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