Amazon Q Developer
AWS's AI coding assistant and CodeWhisperer successor. The free tier covers code completions and chat; Pro adds Agent Mode for multi-file feature development, automated PR creation, and Java upgrade automation. Deep integration across the AWS toolchain.
Gemini Code Assist
Google's AI coding assistant built on Gemini 2.5 Pro. Offers 180,000 code completions/month on the free tier, a 1M token context window for whole-codebase awareness, and Agent Mode for autonomous coding tasks. Available in VS Code and JetBrains.