AI-Assisted Development: What Actually Works in 2026
AI coding assistants have moved from novelty to necessity. But the hype cycle has settled, and we now have real data on what works and what doesn’t. The Landscape Tool Best For Limitations GitHub Copilot Autocomplete, boilerplate Struggles with multi-file refactors Cursor Full-featured AI IDE Context window limits on large codebases Claude Code Terminal-native agentic coding Requires explicit instruction OpenCode Interactive CLI with subagents Needs good task decomposition Where AI Excels Test Generation AI-generated tests catch edge cases humans miss. In our codebase, AI-authored tests found 23% more boundary condition bugs than human-written equivalents: ...