Reason

Overview

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Reason is an autonomous AI software engineer and cloud coding agent available on Web, macOS desktop, and mobile. It receives tasks by connecting to GitHub repositories. You can assign an issue to Reason, and it will automatically research the code, reproduce the problem, identify the root cause, modify the code, and write tests, ultimately submitting a pull request ready for review. According to its official description, Reason outperforms Codex in research capabilities while being 22% more cost-efficient. Reason's workflow involves multiple collaborative roles or sub-agents: Miso reproduces issues, Juniper traces code logic, and Pixel edits files and adds tests. It can execute terminal commands such as reading files, running grep, spawning sub-agents (subagent_spawn), running benchmarks (cargo bench), and executing test suites. Beyond code fixes, Reason handles other development-related tasks. For example, it can read billing data to build visualization dashboards and launch apps locally, or extract data from event logs to generate PPT presentations and CSV files. Reason supports task assignment directly via @ mentions in team collaboration tools like Slack. It is SOC 2 certified and follows a zero data retention policy. The product is backed by Y Combinator.

Q&A

What is Reason?AI-generated

Reason is an autonomous AI software engineer and cloud coding agent that connects to GitHub to resolve issues and submit pull requests ready for review.

Which platforms does Reason support?AI-generated

According to the source information, Reason supports Cloud, macOS desktop, Web, and mobile.

How does Reason handle a bug fix task?AI-generated

It first reproduces the issue, then traces the code logic to find the root cause, edits the relevant files and adds tests, and finally submits a pull request once all checks pass.

How secure is Reason?AI-generated

Reason follows a zero data retention policy and is SOC 2 certified.

Can Reason only write code?AI-generated

No. The source information shows it can also read billing data to build visualization dashboards, or extract data from event logs to generate PPT presentations and CSV files.