CodeRabbit

CodeRabbit is an AI code review platform founded in 2023 by Harjot Gill and Guritfaq Singh in San Francisco. The company raised $88 million across three rounds, reaching a $550 million valuation at its September 2025 Series B led by Scale Venture Partners with participation from NVIDIA's NVentures. CodeRabbit reviews pull requests the moment they open and, since September 2025, integrates directly with AI coding agents to review generated code in the terminal before it reaches a PR.

Key Capabilities:

• Automated PR and MR review on GitHub, GitLab, Azure DevOps, and Bitbucket with inline line-by-line comments on open

• Plain-English PR walkthrough with sequence diagrams showing code flow and one-click fix suggestions

• 40+ integrated linters and SAST tools running in isolated sandboxes alongside LLM reasoning for zero-false-positive deterministic checks

• CodeRabbit CLI for reviewing AI-generated code in the terminal with direct integration into Claude Code, OpenAI Codex CLI, Cursor, and Gemini workflows

• Hallucination detection and contextualized fix handoff back to AI coding agents in the review loop

• Learning feedback loop that calibrates review behavior to team preferences over time

• Coding Plans that convert issues, PRDs, and designs into implementation plans grounded in codebase context

• Jira and Linear integration for validating implementations against linked tickets

• Slack agent for investigation, planning, and code changes from within team channels

• Natural language configuration through .coderabbit.yaml for custom review instructions

• Free tier covering unlimited public and private repositories with full AI review features

See CodeRabbit pricing details →