Friday, January 23, 2026

Doubling AI Code Acceptance: Training Models to Emulate Roblox Engineers

Unlocking AI Potential at Roblox

At Roblox, we transformed the effectiveness of our internal AI tools, achieving remarkable results without a new model. Instead, we leveraged two decades of engineering history. Here’s what we accomplished:

  • Increased Acceptance Rates: AI-generated pull request (PR) acceptance jumped from 30% to over 60%.
  • Enhanced Accuracy: Achieved an 90% evaluation accuracy for our code cleanup project.

The Challenge: Bridging Context Gaps

Coding maintenance consumes 50-60% of time in software development. While AI is a promising candidate for automating repetitive tasks, our engineers found the suggestions lacking in context and trust.

The Solution: Agentic Code Intelligence

We developed a platform rooted in our own codebase, utilizing insights from 700,000 PRs and 1.7 million code review comments. The intelligent system embraces:

  • Expert Exemplar Alignment: Encodes hard-won knowledge into automated guardrails.
  • Deep Understanding: Traces complex relationships within a diverse architecture.

Join us at the forefront of AI in tech—share your thoughts and experiences! 🚀

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