
Gru.ai is developing AI developers to assist with coding and testing. Their flagship product, Gru Unit Test, is a GitHub bot that automatically generates and adds unit tests to pull requests, aiming to improve test coverage and reduce development costs. It boasts an 80% PR acceptance rate and supports multiple languages like Java, Python, TypeScript, Go, and Rust. Another product, gbox, is an open-source, self-hostable sandbox for agents to execute commands and interact with web pages and mobile platforms. Gru.ai has demonstrated strong performance in software engineering benchmarks, achieving 57.2% resolution on SWE-bench Verified, highlighting its advanced AI programming capabilities for real-world coding challenges.

Gru.ai is developing AI developers to assist with coding and testing. Their flagship product, Gru Unit Test, is a GitHub bot that automatically generates and adds unit tests to pull requests, aiming to improve test coverage and reduce development costs. It boasts an 80% PR acceptance rate and supports multiple languages like Java, Python, TypeScript, Go, and Rust. Another product, gbox, is an open-source, self-hostable sandbox for agents to execute commands and interact with web pages and mobile platforms. Gru.ai has demonstrated strong performance in software engineering benchmarks, achieving 57.2% resolution on SWE-bench Verified, highlighting its advanced AI programming capabilities for real-world coding challenges.
Product: AI developer agents and tooling (Test Gru unit-test GitHub bot, Assistant Gru, Bug Fix Gru, gbox sandbox)
Performance: High performance on SWE-Bench Verified (reported scores: 45.2% and 57.2% in different summaries)
Funding: $5.5M seed / angel round (Jan 2024)
Team size: Approximately 5 employees
Developer productivity tooling, AI-assisted software engineering, automated testing
2023
Developer tools / AI software
$5,500,000
Reported as a $5.5M round in January 2024; described on company blog as an angel investment.
“Fengrui Capital; Yunjiu Capital”