Mira – Open-source and self-hosted AI code reviewer
Hey HN, I'm Jay, co-creator of Mira. An open-source, self-hosted AI code reviewer where you BYOK (bring your own key). Local models are getting really good. Hosted frontier models are getting really expensive. So, we built Mira. Mira has some snazzy features too: - It's really fast at reviewing. Average is 77s compared with Greptile's 5 minutes. Your PRs aren't going into a queue on a cloud somewhere. - Mira performs a blast radius and see what damage will be done with code change. - Learns your codebase's patterns from the repo itself and enforces them without a config file. - It's…
In plain words
Mira is an open-source, self-hosted AI code reviewer that analyzes pull requests without sending code to external services. Users provide their own API keys or local models, and the tool reviews code in an average of 77 seconds. It assesses potential impact of changes, learns coding patterns directly from repositories, and supports models from OpenAI, Anthropic, or local LLMs. The software is designed for development teams wanting faster code reviews with full control over their codebase and infrastructure.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hey HN, I'm Jay, co-creator of Mira. An open-source, self-hosted AI code reviewer where you BYOK (bring your own key). Local models are getting really good. Hosted frontier models are getting really expensive. So, we built Mira. Mira has some snazzy features too: - It's really fast at reviewing. Average is 77s compared with Greptile's 5 minutes. Your PRs aren't going into a queue on a cloud somewhere. - Mira performs a blast radius and see what damage will be done with code change. - Learns your codebase's patterns from the repo itself and enforces them without a config file. - It's self-hosted, so your code never leaves your infrastructure. Bring your own model - OpenAI, Anthropic, or a local LLM behind your firewall. We're really active, and looking for active contributors. Come join us in our discord! https://github.com/miracodeai/mira Thanks, Jay
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