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delta.dev vs Greptile

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors. Greptile publishes a starting price ($30); delta.dev does not. Only Greptile has a free tier. Only Greptile ships a public API.

delta.devA multiplayer coding workspace from the Zed team where people and AI agents share threads and full change context.GreptileIndexes the whole repo, then reviews pull requests with cross-file context rather than diff-only context.

Side by side

Factdelta.devGreptile
CategoryCode Review & QualityCode Review & Quality
Pricing modelContactFreemium
Starts at—$30 seat_month
Public APINoYes
PlatformsWebWeb, API
CompanyZed IndustriesGreptile
Launched20262023
Last verifiedSep 1, 2026Sep 6, 2026

What our research says

delta.dev

Delta comes from the team that built the Zed editor, and it targets a real problem: reviewing AI-generated code is now the bottleneck, not writing it. Since it's still a beta waitlist product with no public pricing, there's no way yet to judge it against paid alternatives doing the same job.

Pros

  • Built by the team behind the Zed editor, a known code-editing product
  • Keeps the reasoning behind a change attached to the diff itself
  • Supports desktop, web, and cloud-runner access
  • Designed explicitly for mixed human/agent collaboration

Cons

  • No public pricing or confirmed release date
  • Still in beta and gated behind a waitlist
  • Feature set beyond the announcement post is unverified

Greptile

The full-repo index is the difference that matters - it flags cross-file breakage that diff-only reviewers miss entirely. Billing only for developers who actually got a review that month is a fairer meter than flat per-seat. The 50 credits per seat go quickly on an active team, and $1 per extra review is where the real bill forms.

Pros

  • Indexes the whole codebase, so reviews carry cross-file context
  • Learns from the PR comments your team already writes
  • Seats bill only for developers who actually received a review that period
  • GitHub and GitLab plus an MCP server, an API and a self-hosting option

Cons

  • Credit model means an active repo will exceed the 50 included reviews per seat
  • Overage at $1 per review adds up quietly on a busy month
  • Free tier is capped at a single active developer

Which one fits

Choose delta.dev if you need

  • Teams already using Zed who review a lot of AI-written code
  • Engineering teams looking for context-rich review instead of raw diffs
  • Early adopters willing to join a beta waitlist

Choose Greptile if you need

  • Teams whose bugs come from cross-file coupling rather than local mistakes
  • Enforcing repo-specific conventions through custom rules
  • Orgs that need self-hosted review for code that cannot leave their network

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