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Developer Tools · head to head

Sweep vs PartyKit

Sweep logo

Sweep

Developer Tools

AI coding assistant for JetBrains IDEs

From
Free
Rated
-
Full reviewWebsite
PartyKit logo

PartyKit

Developer Tools

Platform for building and deploying realtime multiplayer servers on the edge

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Sweep limited to JetBrains IDEs only, not available for VS Code or other editors; PartyKit documentation and FAQ material on the marketing site is sparse compared to larger realtime platforms.
  • They diverge on capability: Sweep covers Autocomplete, PartyKit covers Stateful edge servers.

Where they differ

Only the attributes on which Sweep and PartyKit actually diverge.

Attributes where Sweep and PartyKit differ
AttributeSweepPartyKit
Pricing modelFreemium with paid tiersfreemium
PlatformsJetBrains IDEsweb, api
Founded2023Unknown

Identical on both: starting price (Free), 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 Sweep

  • Autocomplete
  • AI Agent
  • Full codebase indexing
  • Code review functionality
  • Multi-IDE support
  • GitHub integration

Only in PartyKit

  • Stateful edge servers
  • WebSocket-first API
  • CRDT library compatibility
  • Framework integrations
  • Global edge deployment
  • Custom domains

What people use each for

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

Sweep

  • Accelerating code completion for JetBrains developersnot PartyKit
  • Automating refactoring tasks across codebasesnot PartyKit
  • Handling bug fixes with full repository contextnot PartyKit
  • Code review and quality assurancenot PartyKit

PartyKit

  • Multiplayer collaborative appsnot Sweep
  • Realtime AI agent backendsnot Sweep
  • Live cursors and presencenot Sweep
  • Collaborative whiteboards and documentsnot Sweep

Where each one falls short

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

Sweep

  • Limited to JetBrains IDEs only, not available for VS Code or other editors
  • Free tier limited to 1,000 autocompletes per month
  • API credit consumption varies by feature usage
  • Performance dependent on codebase size and indexing quality

PartyKit

  • Documentation and FAQ material on the marketing site is sparse compared to larger realtime platforms.
  • Commercial free tier requires deploying to the user's own Cloudflare account, adding setup complexity.
  • Storage on the free Individual plan clears every 24 hours, limiting it to prototyping rather than persistent production data.
  • Smaller ecosystem and community than more established realtime infrastructure providers.

Pricing, plan by plan

Sweep

Free
  • FreeFree
    • 1,000 autocompletes
    • 5 USD API credits included
    • All JetBrains IDEs supported
  • Pro$20/month
    • Unlimited autocomplete
    • Higher API credit allocation
    • Priority support
  • Ultra$60/month
    • Unlimited autocomplete
    • Maximum API credit allocation
    • Extended context window

PartyKit

Free
  • IndividualFree
    • Up to 10 live projects
    • Deploy to the global edge platform
    • Storage clears every 24 hours
  • CommercialFree
    • Unlimited projects
    • Custom domains
    • Runs on your own Cloudflare account; pay only Cloudflare usage

Which should you pick?

Choose Sweep if

  • You need autocomplete.
  • You want to start without paying.
  • You work on JetBrains IDEs.
  • You also want ai agent.
Sweep review

Choose PartyKit if

  • You need stateful edge servers.
  • You want to start without paying.
  • You work on web, api.
  • You also want websocket-first api.
PartyKit review

Questions people ask

Is Sweep or PartyKit better?
Neither clearly leads. Sweep starts at Free and PartyKit at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Sweep or PartyKit?
Sweep starts at Free and PartyKit at Free.
Does Sweep or PartyKit run on more platforms?
Sweep runs on JetBrains IDEs. PartyKit runs on web, api.
Can I use Sweep for free?
Both have a free tier, so you can try either at no cost before committing.
What is Sweep best used for?
Sweep is most often used for accelerating code completion for jetbrains developers, automating refactoring tasks across codebases, handling bug fixes with full repository context, code review and quality assurance. Of those, accelerating code completion for jetbrains developers and automating refactoring tasks across codebases are not what PartyKit is typically brought in for.
What can Sweep do that PartyKit cannot?
Sweep covers Autocomplete, AI Agent, Full codebase indexing, Code review functionality. PartyKit covers Stateful edge servers, WebSocket-first API, CRDT library compatibility, Framework integrations.

Answered from the vendors’ own pages

Sweep: What programming languages does Sweep support?

Sweep works with all programming languages supported by JetBrains IDEs, including Python, Java, JavaScript, Go, Kotlin, C++, and many others.

Source
PartyKit: How much does PartyKit cost?

PartyKit is completely free. Both the Individual and Commercial plans have no upfront costs.

Source
Sweep: Does Sweep retain my code data?

No. Sweep is SOC 2 Type II certified with zero data retention. Code is processed for suggestions but not stored.

Source
PartyKit: What is PartyKit's Individual plan?

The Individual plan is free and includes deployment to a global edge platform, support for up to 10 live projects, and is suitable for small projects. Storage is cleared every 24 hours.

Source
Sweep: Can I cancel my Sweep subscription anytime?

Yes. You can cancel your subscription at any time from your account settings with no long-term commitments or cancellation fees.

Source
PartyKit: What is PartyKit's Commercial plan?

The Commercial plan is free but requires deploying to your own Cloudflare account. It includes custom domains, unlimited projects, and you pay only your Cloudflare usage costs.

Source
PartyKit: Can I upgrade from Individual to Commercial plan?

Yes, both plans are free but offer different feature sets. The Commercial plan removes project restrictions but requires managing your own Cloudflare infrastructure.

Source
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