E2B vs Mem0 (2026): which should you pick?
As of Nov 12, 2026, Mem0 grades higher than E2B: 2.6 against 1.8 out of 4.0.
Checked Nov 12, 2026 · graded Nov 12, 2026 by ToolGPA
Mem0 grades higher on value for money and the free plan. They get the same grade on features, ease of use and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
Which one is for you
Pick E2B if
- Fits if you build agents that run code and need an isolated place to run it
- Works for a developer who wants a $100 credit before paying
Look elsewhere if
- Pricey if you move to Pro: $150 a month before any sandbox usage
- Watch out: a default 2 vCPU sandbox is billed at $0.000028 a second and memory separately
- Tight if you scale: 600 or 1,100 concurrent sandboxes add $500 or $1,000 a month
- Not for you if you need a free allowance that renews, as the $100 credit does not
- Skip it if you want a no-code product, as it is used through SDK and API
Pick Mem0 if
- 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
Look elsewhere if
- 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
How we grade them
| 1.8GPAE2BWeak | 2.6GPAMem0Good | |
|---|---|---|
| Value for money | DPro is $150 a month plus usage by the second, far above the $52 where the dearest tenth begins. | AAn 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. |
| Free plan and trial | CHobby is a one-time $100 credit with no card, and credits do not renew, so it is a trial and not a free plan. | BFree 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. |
| Features | CSandboxes, snapshots, pause, bring-your-own-cloud and MCP tools, though Hobby caps sessions at 1 hour and 10 concurrent sandboxes. | CIt does the memory job fully but only that job. Graph memory, user profiles, analytics and SSO are Custom only. |
| Ease of use | DNo store rating on record. It is used through the SDK and API, with a console beside it. | DNo store rating, and you add it to your own agent through SDKs or an MCP server. |
| Platforms and integrations | BWeb only, with six integrations, Python and JavaScript SDKs and bring-your-own-cloud. | BWeb, with Python and JavaScript SDKs and LangChain, CrewAI, LlamaIndex, Claude Code and Cursor listed. |
| Best for | secure sandboxes for running AI-written code | adding long-term memory to an AI agent through code |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: E2B and Mem0. How we grade
Where they differ
- Mem0 is self-hostable, according to its own site.
At a glance
| E2B | Mem0 | |
|---|---|---|
| Pricing | Free trial | Free plan |
| Starts at | $150 per month, plus per-second sandbox usage | Not published |
| Free plan | None | 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 | Free Hobby tier with a one-time $100 usage credit, no credit card required. Credits do not renew. | None listed |
| Web | ||
| Made by | FoundryLabs, inc. (E2B) | Mem0 |
| Price read from | e2b.dev | mem0.ai |
| Checked | Nov 12, 2026 | Nov 12, 2026 |
Worth knowing
E2B
- Usage is billed separately from the plan: for example a default 2 vCPU sandbox costs $0.000028 per second and 4 GiB of memory $0.000018 per second.
- The free Hobby tier is a one-time $100 credit, not a renewing allowance, and caps sessions at 1 hour and 10 concurrent sandboxes.
- Going from 100 to 600 or 1,100 concurrent sandboxes adds $500 or $1,000 a month on top of Pro.
- It is infrastructure for developers: there is a web console but the product is used through the SDK and API.
Mem0
- 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
E2B
- Isolated sandbox per session
- Each agent session gets its own microVM with a shell, filesystem, network and an optional browser or desktop.
- Snapshots and pause
- Sandboxes start from a snapshot, and a sandbox can be paused and resumed from the same state.
- Python and JavaScript SDKs
- The sandbox is created and controlled from code with the e2b package for Python or npm.
- Bring your own cloud
- The same SDK works on E2B Cloud in the US, EU and APAC or inside your own AWS, GCP or Azure account.
- MCP tools inside the sandbox
- The site says more than 200 MCP servers can be called from inside a sandbox, and secrets are scoped per sandbox.
- Per-second usage billing
- Running sandboxes are charged by the second for vCPUs and memory, so cost follows run time and size.
Mem0
- 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.
Plans
E2B
Hobby$0
One-time $100 usage credit, sessions up to 1 hour, 10 concurrent sandboxes and the default sandbox CPU and RAM. Usage is charged against the credit.
Pro$150
per month, plus usage billed by the second
Sessions up to 24 hours, 100 concurrent sandboxes (expandable to 1,100 with add-ons at +$500 and +$1,000 a month) and custom sandbox CPU and RAM.
EnterpriseCustom
Committed usage, custom billing, multi-day sessions, bring-your-own-cloud. The page says it starts at a $2,000 monthly commit.
Mem0
Free$0
Unlimited end users, community support, and usage-based billing past the limits with a monthly cap you set.
CustomCustom
Limits set to your volume, graph memory, user profiles, advanced analytics, private Slack support, SSO, audit logs, SLA and on-prem deployment.
Ways to pay less
E2B
- Startups
$20,000 in credits and Pro for early-stage startups
A one-time $20,000 in credits plus the Pro tier for startups under three years old that have raised less than $5M.
Mem0
No public discounts listed.
Common questions
Which is cheaper, E2B or Mem0?
As of Nov 12, 2026, E2B starts at $150 per month, plus per-second sandbox usage, and Mem0 publishes no starting price.
Which has a free plan, E2B or Mem0?
As of Nov 12, 2026, only Mem0 has a free plan. E2B does not, though it has a free trial.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.