Robin Review

Free plan APISelf-hostedWeb

What Robin Review is

Robin Review is an open-source tool for reviewing GitHub pull requests with an LLM endpoint you configure. It runs as a GitHub Action, posting a summary and severity-organized inline comments on changed lines. A pull request is reviewed once when opened by default; later commits need configuration to trigger another pass, or a maintainer can comment `/robin` to request one. `/summary` and `/help` provide additional commands. Robin works with OpenAI-compatible endpoints, including OpenRouter, OpenAI, Azure OpenAI, Groq, Ollama, and private gateways. Setup requires a GitHub Actions workflow and three secrets: LLM_API_KEY, LLM_BASE_URL, and LLM_MODEL. The runner sends the diff only to the endpoint you select, and Robin says it does not retain source code. The free plan costs nothing, with no seat count or review quota; you supply an LLM API key and pay that provider for tokens. The MIT-licensed source is published on GitHub. The installer also adds a Robin skill for Cursor, Claude Code, Copilot, and other coding agents.

Who it suits

It suits open-source maintainers, solo developers, small teams, and privacy-conscious teams using GitHub. Teams should be ready to configure their own LLM endpoint and API key.

What it does well

Posts summaries and severity-organized inline comments.
Supports multiple OpenAI-compatible endpoints.
No seat count or review quota.
MIT-licensed source code is published on GitHub.
Installer adds a skill for coding agents.

What to know first

Requires your own LLM API key.
Users pay their LLM provider for tokens.
Default maximum diff size is 50,000 characters.
Default maximum is 15 inline comments.

Plans

Plan	Billed and limits	Price
Free	Free forever; users pay their chosen LLM provider for tokens · No seat count · No review quota · Requires your own LLM API key	Free

As robinreview.dev lists them, read 11 Oct 2026. The maker's own page has the final word.

Verdict

Robin Review combines GitHub pull request feedback with configurable LLM endpoints and has no review quota on its free plan. Account for the provider token costs and the listed default limits on diff size and inline comments.

Facts from Robin Review's own pages

Automatic reviews: By default, Robin reviews a pull request once when it opens; additional commits do not trigger another pass unless configured. · robinreview.dev, 11 Oct 2026
Code handling: Robin runs inside the repository’s GitHub Actions runner and sends the diff only to the LLM endpoint selected by the user; Robin says it does not retain source code. · robinreview.dev, 11 Oct 2026
Commands: Comment /robin to request another review, /summary for a short overview, or /help for usage. · robinreview.dev, 11 Oct 2026
Editor companions: The installer adds a Robin skill for Cursor, Claude Code, Copilot, and other coding agents. · robinreview.dev, 11 Oct 2026
Fork pull requests: Secrets are not exposed to fork pull requests by default, so a maintainer can trigger a review by commenting /robin after checking the change. · robinreview.dev, 11 Oct 2026
Intended users: The maker identifies open-source maintainers, solo developers, small teams, and privacy-conscious teams as intended users. · robinreview.dev, 11 Oct 2026
License: Robin is MIT-licensed and its source code is published on GitHub. · robinreview.dev, 11 Oct 2026
Limits: The advanced guide lists a default maximum diff size of 50,000 characters and a default maximum of 15 inline comments. · github.com, 11 Oct 2026
LLM integrations: Robin supports OpenAI-compatible endpoints, including OpenRouter, OpenAI, Azure OpenAI, Groq, Ollama, and private gateways. · robinreview.dev, 11 Oct 2026
Maker: Robin Review is written and maintained by independent developer Anton Gulin. · robinreview.dev, 11 Oct 2026
Purpose: Robin is an open-source AI code review tool that runs as a GitHub Action and reviews pull requests using an LLM endpoint you configure. · robinreview.dev, 11 Oct 2026
Review output: It posts a pull request summary and inline comments on changed lines, with findings organized by severity. · robinreview.dev, 11 Oct 2026
Setup: Setup uses one GitHub Actions workflow and three GitHub secrets: LLM_API_KEY, LLM_BASE_URL, and LLM_MODEL. · robinreview.dev, 11 Oct 2026
Support: The maker lists [email protected] for questions, feedback, and partnership enquiries, and points users to GitHub issues and contributions. · robinreview.dev, 11 Oct 2026