Updated April 29, 2026
Devin by Cognition is the first fully autonomous AI software engineer. It can plan, write code, debug, deploy, and handle entire development tasks from start to finish using its own code editor, terminal, and browser. Devin works alongside human engineers on real-world codebases, handling tasks like bug fixes, feature implementations, and codebase migrations with minimal human intervention.
GitHub Copilot is the most widely deployed AI coding assistant, integrated into VS Code, JetBrains, Visual Studio, and more. Five tiers: Free, Pro ($10/mo), Pro+ ($39/mo), Business ($19/user/mo), Enterprise ($39/user/mo). Moving to usage-based AI Credits billing on June 1, 2026.
Core capabilities each platform advertises.
What each tool does well, and the limitations to keep in mind.
Pros
Cons
Pros
Cons
Microsoft's commitment to defend customers against certain intellectual property claims related to Copilot output is a major reason we standardized on Business.
Read full reviewChoose Devin if you wantChoose if you want
Choose GitHub Copilot if you wantChoose if you want
Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 500+ models through one gateway.