SuperTurtle

Kilo Code is an open-source AI coding agent for VS Code, JetBrains, and CLI that generates code from natural language, automates complex tasks, and runs terminal commands. It supports 500+ AI models at provider rates and features an Orchestrator mode that breaks complex tasks into coordinated subtasks across planner, coder, and reviewer agents. With 1.5M+ users and 25T+ tokens processed, it's the #1 coding agent on OpenRouter.

Cursor Composer 2 is an advanced agentic coding model built into the Cursor IDE, released March 19, 2026. With a 200,000-token context window, it autonomously plans and executes complex, multi-file coding tasks across an entire codebase — handling file edits, terminal operations, and tool use at frontier-level performance. It is used by over 50,000 businesses including Stripe.

GStack is an open-source Claude Code workflow system created by Y Combinator CEO Garry Tan, designed to encode specialized AI roles for planning, code review, QA, and shipping. Built with Bun and Playwright, it uses route-aware QA and structured release workflows to connect code changes with actual application behavior. Enables developers to achieve 10,000+ lines of quality code per week.

Cognition AIs autonomous AI software engineer released February 24, 2026. The major update features multi-agent operation capability where AI agents dispatch tasks to other agents, plus self-assessed confidence evaluation that asks for clarification when unsure.

Agentation turns UI annotations into structured context that AI coding agents can understand and act on. Click any element on your screen, add a note, and paste the output directly into Claude Code, Codex, or any AI coding tool to fix UI bugs faster. It bridges the gap between visual feedback and actionable AI instructions.

Ultra-fast AI code completion tool with a 1 million token context window. Provides real-time code suggestions with 250ms latency, supports VS Code, JetBrains, and Neovim, and adapts to your coding style.