OpenAI Codex Team Welcomes Git AI Founders

Thibault Sottiaux, head of OpenAI Codex, announced the welcome of Git AI team members Aidan and Sasha; this open-source tool measures the contribution of coding agents to codebases, and both parties will continue to maintain open-source and increase investment, helping enterprises understand Codex's role in individual and team problem-solving.

Git AI co-founder Aidan Cunniffe confirmed the integration into the Codex team on the same day. The product is a Git extension: it tags each line of code written by agents to specific agents, models, and prompts without altering workflows or adding repository hooks, retaining attribution even after rebasing, merging, compressing, and cherry-picking. The company claims the tool is running on hundreds of thousands of developer machines, with clients ranging from growth companies to Fortune 500 firms, used to compare model performance, token efficiency, and agent return on investment. Collaborators include Cursor, Cognition, Google, Factory, OpenAI, and GitHub, involving hooks, telemetry modes, and attribution standards.

Sottiaux currently oversees both Codex and the core ChatGPT product line, reporting to Greg Brockman. Codex operates an open-source command line with a multi-model interface, competing with Anthropic's closed-source Claude Code. In recent years, OpenAI has recruited talent from programming assistants like Cline to supplement Codex and has acquired other editor plugin teams. Git AI emphasizes cross-agent and local-first approaches, avoiding data lock-in with a single model vendor.

The buyer aims to prove that agent modifications can translate into output for engineering managers; the seller is OpenAI, integrating the attribution layer into Codex. The driving force is that enterprise procurement looks for return on investment, not just new model releases. Talent and open-source repositories are entering the Codex framework, with subscription and token revenues flowing back to agent usage. Beneficiaries are buyers who can compare various agents on the same Git history; under pressure are assistants that only report generated line counts without providing auditable attribution.

Source: Public Information