OpenAI Codexhttps://github.com/openai/codexOpenAI's CLI coding agent. Clinehttps://cline.botAutonomous coding agent in VS Code. Continuehttps://continue.devOpen autopilot for VS Code + JetBrains. Claude CoWorkhttps://claude.aiClaude Desktop local-agent mode. GitLab Duohttps://about.gitlab.com/gitlab-duo/GitLab's AI assistant suite (chat, code, agent workflows).