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Developer Tools · head to head

CodeSandbox vs Deep Code

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CodeSandbox

Developer Tools

Cloud platform for instant, isolated development sandboxes and code execution

From
Free
Rated
-
Full reviewWebsite
Deep Code logo

Deep Code

Developer Tools

Desktop AI coding assistant that runs on DeepSeek models

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: CodeSandbox detailed paid plan pricing was not published on the accessible pages, making cost comparison difficult.; Deep Code model choice is narrow. Bring your own key covers DeepSeek-V4-Pro and Flash plus the GLM and Mimo coding plans, and no frontier model from OpenAI, Anthropic or Google.
  • They diverge on capability: CodeSandbox covers Instant sandboxes, Deep Code covers DeepSeek-backed agent.
  • Prices and features above were last checked on 15 September 2026.

Where they differ

Only the attributes on which CodeSandbox and Deep Code actually diverge.

Attributes where CodeSandbox and Deep Code differ
AttributeCodeSandboxDeep Code
Platformsweb, apiWindows, macOS, Linux

Identical on both: starting price (Free), pricing model (freemium), free tier (Yes), user rating (Not yet rated), category (Developer Tools).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in CodeSandbox

  • Instant sandboxes
  • Programmatic sandbox API
  • Secure isolated execution
  • Browser-based editor
  • CI/CD sandbox support
  • Scalable VM infrastructure

Only in Deep Code

  • DeepSeek-backed agent
  • Session management
  • File explorer
  • Snippets panel
  • Voice input
  • Bring your own key

What people use each for

The jobs each tool is most often brought in to do.

CodeSandbox

  • Running AI agent-generated code safely in isolationnot Deep Code
  • Prototyping and sharing web projects in-browsernot Deep Code
  • Executing untrusted code for a code playground productnot Deep Code
  • Using sandboxes as ephemeral CI/CD build environmentsnot Deep Code

Deep Code

  • AI-assisted coding on a budgetnot CodeSandbox
  • Debugging and bug fixingnot CodeSandbox
  • Refactoring existing codenot CodeSandbox
  • Reusing prompt templates across projectsnot CodeSandbox
  • Using an existing DeepSeek API key without proxy setupnot CodeSandbox

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

CodeSandbox

  • Detailed paid plan pricing was not published on the accessible pages, making cost comparison difficult.
  • Focus has shifted toward programmatic sandbox infrastructure, which may be less approachable for casual users just wanting a quick online editor.
  • Public sandboxes are visible to others by default, which is not ideal for proprietary code.

Deep Code

  • Model choice is narrow. Bring your own key covers DeepSeek-V4-Pro and Flash plus the GLM and Mimo coding plans, and no frontier model from OpenAI, Anthropic or Google.
  • The Pro tier caps included usage at 100 Pro Credits per day rather than offering an unmetered plan.
  • Bring your own key is a paid feature, so the free tier cannot be pointed at your own DeepSeek account.
  • Desktop only, with no editor extension, web version or team seat management as of September 2026.
  • A small, young vendor with no independent review coverage yet, so there is nothing outside the vendor's own site to corroborate the cost claim.

Pricing, plan by plan

CodeSandbox

Free
  • FreeFree
    • Public sandboxes
    • Basic sandbox usage

Deep Code

Free
  • FreeFree
    • Session management
    • File explorer and snippets panel
    • Voice input
  • Pro$5/month
    • All Free features
    • 100 daily Pro Credits
    • BYOK across DeepSeek-V4-Pro, DeepSeek-V4-Flash, GLM Coding Plan and Mimo Coding Plan

Which should you pick?

Choose CodeSandbox if

  • You need instant sandboxes.
  • You want to start without paying.
  • You work on web, api.
  • You also want programmatic sandbox api.
CodeSandbox review

Choose Deep Code if

  • You need deepseek-backed agent.
  • You want to start without paying.
  • You work on Windows, macOS, Linux.
  • You also want session management.
Deep Code review

Questions people ask

Is CodeSandbox or Deep Code better?
Neither clearly leads. CodeSandbox starts at Free and Deep Code at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, CodeSandbox or Deep Code?
CodeSandbox starts at Free and Deep Code at Free.
Does CodeSandbox or Deep Code run on more platforms?
CodeSandbox runs on web, api. Deep Code runs on Windows, macOS, Linux.
Can I use CodeSandbox for free?
Both have a free tier, so you can try either at no cost before committing.
What is CodeSandbox best used for?
CodeSandbox is most often used for running ai agent-generated code safely in isolation, prototyping and sharing web projects in-browser, executing untrusted code for a code playground product, using sandboxes as ephemeral ci/cd build environments. Of those, running ai agent-generated code safely in isolation and prototyping and sharing web projects in-browser are not what Deep Code is typically brought in for.
What can CodeSandbox do that Deep Code cannot?
CodeSandbox covers Instant sandboxes, Programmatic sandbox API, Secure isolated execution, Browser-based editor. Deep Code covers DeepSeek-backed agent, Session management, File explorer, Snippets panel.

Answered from the vendors’ own pages

CodeSandbox: Does CodeSandbox offer a free tier?

Yes, CodeSandbox offers a free option available on the platform. Users can start for free.

Source
Deep Code: Which models does Deep Code run on?

DeepSeek V4 family models, with the vendor's headline built around DeepSeek V4.1. The free tier's included credits run on DeepSeek-V4-Flash. Paid users bringing their own key can also use DeepSeek-V4-Pro, the GLM Coding Plan and the Mimo Coding Plan.

Source
CodeSandbox: Where can I find CodeSandbox's pricing details?

CodeSandbox maintains a dedicated pricing page, but specific tier names, feature breakdowns, and costs are not displayed on the landing page.

Source
Deep Code: What does Deep Code cost?

There are two tiers. Free is $0 per month and includes session management, the file explorer, snippets, voice input and weekly free credits on DeepSeek-V4-Flash. Pro is $5 per month and adds 100 daily Pro Credits plus bring-your-own-key support for multiple models.

Source
Deep Code: Do I need my own API key to use it?

No. The free tier includes weekly credits and needs no credit card, so the app works without a key. Bring your own key is available on the $5 per month Pro tier and covers DeepSeek-V4-Pro, DeepSeek-V4-Flash, the GLM Coding Plan and the Mimo Coding Plan.

Source
Deep Code: Which operating systems does it run on?

Windows, macOS and Linux. It is a desktop application rather than an editor extension, so it runs alongside whatever editor you already use.

Source
Deep Code: Is the 95 percent cheaper claim independently verified?

No. It is the vendor's own figure, based on DeepSeek token pricing against frontier model pricing. Actual savings depend on which model you compare against and how much of your usage falls inside the included credits.

Source
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