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Mem0 review (2026): is the free plan enough?

Memory layer that lets AI agents remember across sessions

Free planAI AgentsChecked Nov 12, 2026 · graded Nov 12, 2026 by ToolGPA
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How Mem0 presents itself. Image from mem0.ai.

Mem0 report card

2.6GPA

Good · out of 4.0 · graded Nov 12, 2026

Best for adding long-term memory to an AI agent through code

Mem0 is a memory layer that lets agents remember users across sessions, with SDKs in Python and JavaScript and an open-source version. The Free plan's hosted limits shrink after 30 days unless you add your own LLM key, and the paid plan has no published price.

Who Mem0 is for

  • Fits if you are a developer who wants your agent to remember users
  • Works for teams already on LangChain, CrewAI or the Vercel AI SDK

Who Mem0 is not for

  • Skip it if you want a finished agent, as it is only the memory part
  • Tight if you stay free, since after 30 days hosted model calls need your own LLM key
  • Not for you if you need graph memory or SSO, because those are Custom only
  • Watch out: usage past the free limits is billed, but the page states no rates
See the alternatives

Why Mem0 gets a 2.6

Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.

  • AValue for moneyAn open-source version you can run yourself, and a Free plan with unlimited end users. The only other plan is Custom, with no price shown.
  • BFree plan and trialFree gives 10,000 adds and 1,000 retrievals a month for 30 days, then 50,000 adds and 10,000 retrievals with your own LLM key.
  • CFeaturesIt does the memory job fully but only that job. Graph memory, user profiles, analytics and SSO are Custom only.
  • DEase of useNo store rating, and you add it to your own agent through SDKs or an MCP server.
  • BPlatforms and integrationsWeb, with Python and JavaScript SDKs and LangChain, CrewAI, LlamaIndex, Claude Code and Cursor listed.

What these grades rest on. Graded from this listing, whose facts were read from Mem0's own pages on 12 November 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.

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Where Mem0 stands among AI agents

Mem0's GPA of 2.6 is higher than 70 of the 101 other AI agents we grade, and level with 17.

It stands best on value for money (A, above 91 of 101) and worst on ease of use (D, above 0).

Each grade against the category

Every bar is all 102 AI agents we grade, cut by the letter each got. Mem0’s own letter is outlined.

  • AValue for moneyAbove 91 of 101, level with 10
  • BFree plan and trialAbove 82 of 101, level with 13
  • CFeaturesAbove 1 of 101, level with 67
  • DEase of useAbove 0 of 101, level with 13
  • BPlatforms and integrationsAbove 20 of 101, level with 71

Keep Mem0, or make your own?

Keep it

To replace Mem0 you would be making an AI agent, with the models and the safeguards behind it. That is not a weekend's work, with an AI app builder or without one.

It is one of the better ones too: its GPA of 2.6 is higher than 70 of the 101 other AI agents we grade. Mem0 is open source, so there is a third way: take its code and run it yourself.

What you could not

  • An AI agent, with the models and the safeguards behind it.
  • It plugs into other products, LangChain, CrewAI and LlamaIndex among them, and has an API.

What this rests on. Mem0’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.

What is Mem0?

Mem0 is a memory service for AI agents and apps. Developers add conversation messages through an SDK or API, and Mem0 stores condensed memories per user that the agent can search in later sessions. It is offered as a hosted platform and as an open-source version that runs on your own servers.

Worth knowing

  • The pricing page shows only a Free plan and a Custom plan; the price of Custom is not published.
  • The Free plan includes 10,000 adds and 1,000 retrievals for the first 30 days with model calls on Mem0; after that you supply your own LLM key.
  • Graph memory, user profiles, advanced analytics, SSO, audit logs and on-prem deployment are limited to Custom.
  • Past the free limits, usage is billed, but the page does not state the rates.

Key features

Persistent memory
Messages are added per user and searched later, so an agent can recall preferences and facts across sessions.
Memory compression
The vendor says chat history is condensed into compact memories to cut tokens and latency.
Python and JavaScript SDKs
A few lines of code add and search memories, and the docs include setup guides for 22 frameworks and tools such as LangChain, CrewAI and the Vercel AI SDK.
Coding-agent plugins and MCP
Guides cover adding memory to Claude Code, Cursor, Codex and other coding agents, and an MCP integration is listed.
Graph memory and user profiles
Entity linking and user profiles are listed on the Custom plan only.
Open-source version
The same memory layer can run as a library or a Docker stack on your own infrastructure under an Apache-2.0 license.

Mem0 pricing

As of Nov 12, 2026, Mem0 has a free plan.

Starts at
Not published
Free plan
Unlimited end users; 10,000 adds and 1,000 retrievals a month for the first 30 days, or 50,000 adds and 10,000 retrievals a month with your own LLM key.
Free trial
None listed
Free$0Unlimited end users, community support, and usage-based billing past the limits with a monthly cap you set.
CustomCustomLimits set to your volume, graph memory, user profiles, advanced analytics, private Slack support, SSO, audit logs, SLA and on-prem deployment.

Read from mem0.ai on Nov 12, 2026. Prices change, so confirm with Mem0 before you buy.

Pricing in detail

Works with

Mem0 alternatives

All Mem0 alternatives comparedAll AI agents

Common questions

Does Mem0 have an Android app?

No Android app was listed when its pages were read on Nov 12, 2026. Mem0 is listed for Web.

Does Mem0 have an iPhone app?

No iPhone app was listed when its pages were read on Nov 12, 2026. Mem0 is listed for Web.

Is Mem0 open source?

Yes. Mem0 is open source, according to its own site. It can also be run on a server of your own.

Does Mem0 have an API?

Yes. Mem0 offers a public API, according to its own site.

Sources for this page

The prices, plans, platforms and features above were read from these pages on Nov 12, 2026.