Devin by Cognition: When AI Becomes Your Best Developer | LangChain Interrupt

LangChain · Advanced ·💻 AI-Assisted Coding ·11mo ago
Watch our recorded sessions from Interrupt here: https://interrupt.langchain.com/video/?utm_medium=social&utm_source=youtube&utm_campaign=q2-2025_interrupt-2025_co Russell Kaplan, President of Cognition, reveals the technical architecture behind Devin and introduces Devin Search -- their tool for deep research across your codebase -- and how they built it. Their specialized 32B model outperforms frontier models on coding tasks through custom post-training and reinforcement learning. What You'll Discover: - Why Devin is fundamentally different from Copilot - The exact architecture behind Devin's codebase understanding system - How their 32B model achieves 91% accuracy on CUDA kernels - The "narrow domain specialization" approach that beats frontier models
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