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Head to head · 2026

Mem0 vs MemGPT

Pricing, free plans, ratings, features, pros and cons, side by side. Where one comes out ahead, we mark it.

Mem0

Open-source memory layer that lets AI agents retain and recall context across sessions

4.2$19/mo

Visit Mem0 (opens Mem0 in a new tab)

MemGPT

Stateful agents with persistent memory that learn continuously rather than resetting each session

4.0Free

Visit MemGPT (opens MemGPT in a new tab)

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

  • Lower starting price

    Not comparable

    Not comparable: MemGPT does not list a price

  • Free plan

    Tie

    Both have one

  • Higher rating

    Mem0

    4.2 against 4.0

  • Same job?

    Yes

    Both are AI Infrastructure & Agent Tooling tools

Side by side

Compared onMem0MemGPT
Our rating4.2Better4.0
Starts at$19/moFree
Free planYesYes
CategoryAI Infrastructure & Agent ToolingAI Infrastructure & Agent Tooling
PlansFrom $19/moFree
Key features
  • Selective memory extraction instead of full conversation-history storage
  • Open-source core with a hosted cloud API option
  • Cross-session personalization for AI assistants and agents
  • Integrations with LangGraph, CrewAI, and AWS Agent SDK
  • Browser extension for capturing memories across ChatGPT, Perplexity, and Claude
  • Stateful agents that persist memory across sessions
  • Continuous learning rather than per-session resets
  • Memory management beyond the limits of a context window
  • Research-backed approach to retention and retrieval
  • Developer-oriented infrastructure for long-running agents
Pros
  • Open-source core gives developers a self-hosted option alongside the managed API
  • Backing from Y Combinator, Peak XV, and the GitHub Fund signals strong investor confidence
  • Default memory provider status on AWS's Agent SDK gives it built-in distribution
  • Directly addresses the memory limit that undermines most agents
  • Research foundation rather than a wrapper
  • Suits agents that must persist over months
Cons
  • Selective-memory approach can miss context a full-window approach would have caught
  • Pricing jumps sharply between the Growth ($79) and Pro ($249) tiers
  • Young company (2024) still proving long-term retention accuracy at scale
  • Infrastructure rather than a ready-made application
  • Requires developer effort to integrate
CompanyMem0, founded 2024

Prices come from each vendor's pricing page, last checked 20260806. Check the vendor before you buy.

FAQ

Questions people ask

Is Mem0 better than MemGPT?

In our reviews Mem0 scores 4.2 and MemGPT scores 4.0. The better pick depends on the job. Mem0: Open-source memory layer that lets AI agents retain and recall context across sessions. MemGPT: Stateful agents with persistent memory that learn continuously rather than resetting each session.

Which is cheaper, Mem0 or MemGPT?

Mem0: from $19/mo. MemGPT: free.

Do Mem0 and MemGPT have free plans?

Yes, both have a free plan.

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