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Verified April 2026. Sourced from greptile.com and greptile.com/pricing. Verify current details against those pages before purchasing.

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At a glance

MergeWatchGreptile
LicenseAGPL-3.0Proprietary / closed
Self-hostDocker + Postgres, any cloud, no seat minimumEnterprise only, in AWS
BYO LLMBedrock, Anthropic, LiteLLM (100+), OllamaEnterprise self-host only
Agent architecture6 review + 2 utility agents, parallel, merge score”Swarm of agents” + TREX autonomous test generation
Codebase contextPer-PR diff + auto-discovered conventionsGraph-based full-codebase index
Starting paid tierUsage-based via Stripe balance30/seat/month+30/seat/month + 1/review over 50
Free tierPublic repos freeNone (OSS / startup discounts available)

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Greptile

  • What it is. “AI agents that review and test pull requests with full context of the codebase.” (greptile.com)
  • Trigger model. PR comments on GitHub/GitLab; IDE integrations with Claude Code, Cursor, Codex, Devin; MCP connection; a /greploop command for iterative workflows. (greptile.com)
  • Where it runs. Both SaaS and self-hosted (self-hosting in AWS is available on the Enterprise plan). (greptile.com/pricing)
  • LLM flexibility. Cloud plan uses Greptile’s managed stack. Enterprise self-host can deploy with their own LLM providers.
  • Open source. Proprietary / closed source.
  • Agent architecture. “A swarm of agents” operating in parallel; codebase indexed as a graph; dedicated TREX agent for autonomous test generation. (greptile.com)
  • Key claims. Graph-based codebase indexing, learning from team PR comments, plain-English custom rules, multi-file logical bug detection, MCP integration with coding agents.
  • Pricing. Cloud 30/seat/monthwith50reviewsincluded+30/seat/month with 50 reviews included + 1 per additional review; unlimited repos and users. Enterprise custom pricing adds self-hosting, SSO/SAML, custom DPA, and a forward-deployed engineer. No free tier; OSS and startup discounts available. (greptile.com/pricing)
  • Data handling. Retention/training posture not publicly documented on pages fetched. Custom DPA offered on Enterprise.

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Where MergeWatch differs

  • Self-host without an Enterprise contract. MergeWatch self-hosting works with docker-compose up on any cloud or VPS. Greptile’s self-hosting is Enterprise-tier only and runs in AWS.
  • Fully open-source review pipeline. AGPL-3.0 across prompts, orchestrator, and templates. Greptile’s review logic is closed — you cannot audit the agent behavior.
  • Pricing model. MergeWatch has no per-seat charge. On Greptile Cloud you pay 30perseat+30 per seat + 1 per review above 50; on a busy repo this compounds quickly.
  • Pluggable LLM on SaaS. MergeWatch SaaS runs on Bedrock; self-hosted supports four providers out of the box. Greptile’s non-Enterprise tier uses Greptile’s managed stack only.
  • Merge-readiness score. MergeWatch produces a 1–5 composite score. Greptile does not publicly document an equivalent signal.
  • Agent-authored PR detection. MergeWatch flags PRs from coding agents and tightens the review prompt. Greptile does not publicly document this.

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When Greptile might be the better fit

  • You want a graph-indexed full-codebase context layer for cross-file logical-bug detection and are willing to trust a closed index.
  • You have a flat, low-review-volume repo where 30/seat+30/seat + 1/review is cheaper than paying LLM tokens directly.
  • You specifically want the /greploop iterative workflow or the TREX test-generation agent — both are Greptile-native behaviors.
  • You’re on GitLab and need a batteries-included PR-review integration.