Best AI Assistant Tools (2026)

GitHub Copilot

paid

AI pair programmer with code completion chat and agent mode for agentic coding

Amazon Q Developer

paid

Build and refactor AWS apps faster with AI that understands your stack

Cline

free

Autonomous AI coding agent for VS Code connecting CLI and editor via natural commands

Gemini Code Assist

paid

Google's AI coding assistant for IDEs

Continue

open-source

Open-source plugin to create custom AI copilots in VS Code or JetBrains

JetBrains AI

paid

Deeply integrated AI assistant for JetBrains IDEs

Roo Code

free

Open-source VS Code extension forked from Cline with extra features

Kilo Code

free

Open-source AI coding agent for VS Code and JetBrains supporting 500+ models

Cody

free

AI assistant using Sourcegraph code graph to understand entire codebase

Blackbox AI

freemium

Turn questions into code snippets with real-time autocomplete and debugging

Google AI Studio

free

Another way to vibecode with Gemini - great for experimenting

avante.nvim

open-source

Neovim plugin emulating Cursor AI IDE behavior with AI-driven suggestions

IntelliCode

free

Microsoft's AI-assisted development tool for VS/VS Code

OpenClaw

free

Free personal AI assistant running locally

LingGuang

free

Ant Group's multimodal vibe-coding assistant

Augment Code

paid

Context-aware AI agent for large repos that navigates and writes fixes like a senior dev

Qodo

paid

AI assistant focused on code quality reviews and test generation

Tabnine

paid

Fast AI code completions you can run locally for privacy

Sourcery AI

paid

Automatically refactor Python code to improve readability and performance

Junie

unknown

Chat refactor and generate tests across JetBrains IDEs with context-aware AI

Amp

paid

Frontier coding agent for terminal and editor built by Sourcegraph

Refact.ai

paid

AI assistant specialized in refactoring and technical debt

GoCodeo

paid

Tool focused on generating tests and debugging