AI Code Generator — Best AI Tools (2026)

Supermaven is an AI code autocomplete tool focused on speed and context. It ships a purpose-built 1M-token completion model and a chat panel with frontier LLMs, all inside VS Code, JetBrains, and Neovim.

Gemini CLI is an open-source command-line AI agent from Google that runs locally in the terminal, connects to the Gemini models, and supports tool use, file editing, MCP extensions, and Google Search grounding.

Codeium is the AI code assistant behind Windsurf, offering inline autocompletion, chat, and refactoring across VS Code, JetBrains, and many other IDEs. Individual use is free forever.

DragonCode provides a single account and unified endpoint to access Claude Code, Codex, and Gemini CLI. Pricing is per-token in CNY at rates lower than official, with full call logs and quick IDE setup.

AgentSkill.sh is a cross-platform directory and marketplace for AI agent skills cataloguing over 107,000 skills across development, marketing, and data analytics roles, installable via CLI for any major AI coding tool.

Z.ai is an advanced AI chatbot and agent platform powered by GLM-5.2, offering free chat with no login required. It handles long-horizon tasks including full-stack code generation, AI-powered slide creation (Magic Design), and deep research. An API is available for developers to integrate GLM models into their own applications.

Open Design is a free, Apache-2.0 licensed, desktop-native AI design platform. It wires 21+ coding agents (Claude, Codex, Gemini, Cursor) into a unified design workflow, covering prototypes, web, slides, and HTML video — all running locally on your machine.

Cline is an open-source AI coding agent that lives inside VS Code and the terminal. It can plan and execute multi-file edits, run shell commands, browse the web, and use MCP tools with Claude, GPT, Gemini, and local models.