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FullsendAI vs E2B

E2B sells cloud sandboxes that developers build their own AI agents on, through an SDK. FullsendAI is the finished product: AI agents that work alongside you, each on a cloud computer of its own, with any model, and you can watch and take over at any time.

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The short answer.

As of 1 November 2026.

Choose FullsendAI if

you want the agent itself: a desktop to watch and take over, any model, no code, and a lower price for the same size of box.

Side by side.

What each one gives you.

  • Ready to use, no code needed

    FullsendAI
    YesChat, live view and take-over in the browser
    E2B
    NoAn SDK: you build the agent and the interface

  • Full desktop

    FullsendAI
    YesLinux desktop with apps
    E2B
    YesE2B Desktop: Ubuntu with XFCE

  • Browser

    FullsendAI
    Yes
    E2B
    PartlyInside the desktop, driven by your code

  • Terminal

    FullsendAI
    Yes
    E2B
    Yes

  • Watch live

    FullsendAI
    Yes
    E2B
    YesA VNC stream you embed

  • Take over any time

    FullsendAI
    YesMouse and keyboard, then hand back
    E2B
    PartlyPossible through the stream; you build the controls

  • Keeps files between sessions

    FullsendAI
    YesTemporary, saved or always-on
    E2B
    YesPause and resume; runs capped at 1 h (Hobby) or 24 h (Pro)

  • Choose any model

    FullsendAI
    YesEvery model we serve, one key
    E2B
    YesBring your own

  • API

    FullsendAI
    YesOpenAI- and Anthropic-compatible
    E2B
    YesPython and JavaScript SDKs
Feature FullsendAI E2B
Ready to use, no code needed
YesChat, live view and take-over in the browser
NoAn SDK: you build the agent and the interface
Full desktop
YesLinux desktop with apps
YesE2B Desktop: Ubuntu with XFCE
Browser
Yes
PartlyInside the desktop, driven by your code
Terminal
Yes
Yes
Watch live
Yes
YesA VNC stream you embed
Take over any time
YesMouse and keyboard, then hand back
PartlyPossible through the stream; you build the controls
Keeps files between sessions
YesTemporary, saved or always-on
YesPause and resume; runs capped at 1 h (Hobby) or 24 h (Pro)
Choose any model
YesEvery model we serve, one key
YesBring your own
API
YesOpenAI- and Anthropic-compatible
YesPython and JavaScript SDKs

What it costs.

The same size of computer, with the agent included on our side.

FullsendAI

$0.08–$0.13

An hour for a very fast computer, billed by the second, with the agent, live view and take-over included. No monthly minimum.

E2B

~$0.17

Hobby is free with a one-time $100 credit; Pro is $150 a month plus usage. A 2 vCPU / 4 GiB sandbox is about $0.17 an hour at the published rates.

As of 1 November 2026. E2B is a product of E2B; its name and logo belong to its owner.

See the difference yourself.

Add a card or credit to start. You only pay while your agent works.

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