AI Assisted Coding Tools - spinningideas/resources GitHub Wiki

AI Assisted Development

Below are an ever changing list of tools that are AI Assisted Development Tools (ordered roughly by quality with "best" at top)

AI Assisted Development IDE (Installable IDEs)

A curated list of top IDE and CLI tools for AI-assisted software development. Pricing reflects publicly listed individual/pro tiers as of April-2026 and can change; always verify pricing and details on the vendor site.

OpenCode

  • Description: Open-source, provider-agnostic AI coding agent that runs in the terminal, IDE, or desktop. Supports 75+ LLM providers via Models.dev (Claude, GPT, Gemini, local Ollama, etc.), includes LSP integration, multi-session parallel agents, and shareable session links. Privacy-first: no code or context stored by default.
  • URL: https://opencode.ai
  • GitHub: https://github.com/opencode-ai/opencode
  • VS Code integration: Available as a VS Code extension, desktop beta, or terminal CLI. Install via curl -fsSL https://opencode.ai/install | bash or download from the site.
  • Free tier: Yes - free and open source; use included free models or bring your own API keys.
  • Paid: OpenCode Zen provides managed, benchmarked models for coding agents (custom pricing).

Devin Desktop (formerly Windsurf / Codeium)

  • Description: Agent-native IDE by Cognition (rebranded from Windsurf). Designed for managing fleets of local and cloud agents from one surface. Features "Cascade" multi-step agent, Supercomplete, Tab-to-Ship completions, deep context awareness, and all major model providers with effortless cloud handoff.
  • URL: https://devin.ai/desktop
  • Download: https://devin.ai/download
  • Free tier: Yes - Free plan with light agent quota, unlimited inline edits, and unlimited Tab completions.
  • Paid: Pro $20/mo; Max $200/mo; Teams $80/mo minimum + $40/mo per full seat; Enterprise custom.

Cursor

  • Description: AI-first code editor (VS Code fork) with deep agent mode, multi-file edits, codebase indexing, and tab-completion powered by frontier models (Claude, GPT, Gemini). Industry-leading agentic coding experience inside an editor.
  • URL: https://cursor.com
  • Free tier: Yes - Hobby plan with limited slow requests and 2 weeks Pro trial.
  • Paid: Pro ~$20/mo; Business ~$40/user/mo; Ultra ~$200/mo.

Continue

  • Description: Open-source AI code assistant extension for VS Code and JetBrains. Plug in any model (OpenAI, Anthropic, local Ollama, etc.) with full customization of rules, context providers, and slash commands.
  • URL: https://continue.dev
  • VS Code integration: Native extension. Install Continue from the Marketplace, or run code --install-extension Continue.continue. Configure providers/models in config.yaml.
  • Free tier: Yes - fully free and open source (you pay only for the underlying model API).
  • Paid: Continue Hub Teams/Enterprise plans for shared assistants (custom pricing).

OpenAI Codex

  • Description: OpenAI's coding agent integrated directly into VS Code, Cursor, Windsurf, JetBrains, and other VS Code-compatible editors. Provides an inline panel for chat, multi-file edits, and previews using context from opened files; can also delegate larger tasks to Codex in the cloud and review results without leaving the editor.
  • URL: https://developers.openai.com/codex/ide
  • VS Code integration: Install the Codex extension from the Marketplace or run code --install-extension openai.chatgpt. Sign in with a ChatGPT account.
  • Free tier: Yes - works with a free ChatGPT account (limited usage).
  • Paid: Included with ChatGPT Plus $20/mo, Pro $200/mo, Business $25/user/mo, Enterprise/Edu custom; or pay-as-you-go via OpenAI API.

GitHub Copilot

  • Description: The original mainstream AI pair programmer. Inline completions, Copilot Chat, agent mode, and PR review across VS Code, JetBrains, Neovim, Visual Studio, and Xcode. Now supports multi-model selection (GPT, Claude, Gemini).
  • URL: https://github.com/features/copilot
  • VS Code integration: First-class. Install the GitHub Copilot and GitHub Copilot Chat extensions, or run code --install-extension GitHub.copilot GitHub.copilot-chat. Sign in with your GitHub account.
  • Free tier: Yes - Copilot Free (limited completions and chat messages/month).
  • Paid: Pro $10/mo; Pro+ $39/mo; Business $19/user/mo; Enterprise $39/user/mo.

Google Antigravity

  • Description: Google's new agent-first development platform (successor to the Windsurf/Gemini Code Assist vision). Provides an agent-centric IDE where Gemini models autonomously plan, edit, run, and verify code across the workspace and browser.
  • URL: https://antigravity.google
  • Free tier: Yes - generous free preview tier with Gemini access during early availability.
  • Paid: Bundled with Google AI / Gemini Code Assist plans (Standard ~$19/user/mo, Enterprise ~$45/user/mo).

JetBrains AI Assistant + Junie

  • Description: Native AI integration across all JetBrains IDEs (IntelliJ, PyCharm, WebStorm, Rider, etc.). Junie is the autonomous coding agent that can plan and execute multi-step tasks inside the IDE.
  • URL: https://www.jetbrains.com/ai/
  • Free tier: Yes - AI Free tier with limited credits and local-model support.
  • Paid: AI Pro $10/mo; AI Ultimate $20/mo (bundled with All Products Pack options).

Zed

  • Description: High-performance, multiplayer, Rust-built code editor with first-class AI agent panel, BYO-key support, and inline assistant. Strong for collaborative AI-assisted coding.
  • URL: https://zed.dev
  • Free tier: Yes - free to use; AI features available via BYO API keys or Zed Pro.
  • Paid: Zed Pro $20/mo for hosted model access.

CLI / Terminal Agents

Claude Code

  • Description: Anthropic's official terminal-based agentic coding tool. Runs in your shell, reads/edits files, executes commands, and integrates with VS Code, JetBrains, and GitHub Actions. Excellent for long-horizon agentic work driven by Claude Sonnet/Opus.
  • URL: https://www.anthropic.com/claude-code
  • VS Code integration: CLI-first with a companion extension. Install the CLI via npm install -g @anthropic-ai/claude-code, then install the Claude Code for VS Code extension (or run code --install-extension anthropic.claude-code) for inline diffs and an integrated sidebar.
  • Free tier: No standalone free tier; usage counts against Claude API credits or Claude Pro/Max subscription.
  • Paid: Included with Claude Pro $20/mo or Claude Max $100-$200/mo; pay-as-you-go via Anthropic API.

OpenAI Codex CLI

  • Description: OpenAI's open-source terminal coding agent (rewritten in Rust). Runs locally, executes commands in a sandbox, supports MCP servers, and pairs with the Codex cloud agent and the Codex IDE extension for VS Code/JetBrains/Cursor.
  • URL: https://github.com/openai/codex
  • VS Code integration: Install the OpenAI Codex / ChatGPT extension or run code --install-extension openai.chatgpt. Pairs with the codex CLI installed via npm install -g @openai/codex.
  • Free tier: Tool is free and open source; requires OpenAI API key or ChatGPT plan.
  • Paid: Included with ChatGPT Plus $20/mo, Pro $200/mo, Business $25/user/mo, or pay-per-token via OpenAI API.

Antigravity CLI (formerly Gemini CLI)

  • Description: Google's new Go-built terminal AI agent and successor to Gemini CLI. Unified with the Antigravity 2.0 agent harness, supports asynchronous multi-agent workflows, Agent Skills, Hooks, Subagents, and Antigravity plugins. Consumer Gemini CLI stopped serving requests on June 18, 2026.
  • URL: https://antigravity.google/download
  • GitHub: https://github.com/google-antigravity/antigravity-cli
  • VS Code integration: CLI runs in VS Code's terminal. Download and install from https://antigravity.google/download.
  • Free tier: Yes - free plan available for individuals.
  • Paid: Bundled with Google AI / Antigravity plans (Standard ~$19/user/mo, Enterprise ~$45/user/mo) or via Google Cloud project billing.

Specialized / Complementary Tools

Tabnine

  • Description: Enterprise-focused AI coding assistant with strong privacy guarantees, on-prem/air-gapped deployment options, and personalized models trained on private repos. Works in all major IDEs.
  • URL: https://www.tabnine.com
  • VS Code integration: Native extension. Install Tabnine or run code --install-extension TabNine.tabnine-vscode.
  • Free tier: Yes - Basic free plan with short completions.
  • Paid: Dev $9/mo; Enterprise $39/user/mo.

Sourcegraph Cody / Amp

  • Description: Sourcegraph's AI coding assistant (Cody) and new agentic tool (Amp) combine deep codebase search with multi-model AI chat, autocomplete, and agentic task execution across very large repos.
  • URL: https://sourcegraph.com/cody | https://ampcode.com
  • VS Code integration: Native extensions. Install Cody (code --install-extension sourcegraph.cody-ai) and/or Amp (code --install-extension sourcegraph.amp).
  • Free tier: Yes - Cody Free plan with limited autocompletions and chats.
  • Paid: Cody Pro $9/mo; Enterprise Starter $19/user/mo; Amp usage-based pricing.

Cline (VS Code extension)

  • Description: Open-source autonomous coding agent for VS Code that can plan, edit files, run terminal commands, and use the browser. BYO-key model access (Claude, GPT, Gemini, local).
  • URL: https://cline.bot
  • VS Code integration: Built specifically for VS Code. Install Cline or run code --install-extension saoudrizwan.claude-dev. Add your model API key in the extension's settings panel.
  • Free tier: Yes - extension is free; pay only for the underlying model API.
  • Paid: Optional Cline-hosted model routing (usage-based).

Roo Code (VS Code extension)

  • Description: Cline fork that adds multi-agent modes (Architect, Code, Ask, Debug), custom modes, and stronger orchestration. Fully open source.
  • URL: https://roocode.com
  • VS Code integration: Built specifically for VS Code. Install Roo Code or run code --install-extension RooVeterinaryInc.roo-cline. Configure model providers in the side panel.
  • Free tier: Yes - free and open source; BYO model API key.
  • Paid: None.

Replit Agent

  • Description: Replit's in-browser AI agent that builds, runs, and deploys full applications from natural language - ideal for prototyping and learning.
  • URL: https://replit.com
  • VS Code integration: Browser-based; not a native VS Code extension. Replit publishes a Replit extension for SSH connections to Replit workspaces.
  • Free tier: Yes - Starter plan with limited Agent usage.
  • Paid: Core $20/mo (includes monthly Agent credits); Teams $35/user/mo.

Warp (AI Terminal)

  • Description: Modern Rust-built terminal with built-in AI agent, command suggestions, natural-language-to-shell, and workflow automation. Excellent companion to any of the AI coding agents above.
  • URL: https://warp.dev
  • Free tier: Yes - free plan with limited AI requests.
  • Paid: Pro $18/mo; Turbo $50/mo; Teams $22/user/mo.

Quick Comparison

Category Best Free Option Best Paid Pick
Full AI IDE Windsurf Free Cursor Pro ($20/mo)
IDE plugin Continue / Copilot Free GitHub Copilot Pro ($10/mo)
Terminal agent OpenCode / Gemini CLI Claude Code (via Claude Max)
Enterprise/secure Amazon Q Free Tabnine Enterprise / Cody Enterprise
Autonomous delegation - Devin / Antigravity

Notes

  • Most CLI tools (Claude Code, Codex, OpenCode, Gemini CLI, Cline, Roo Code) are BYO-key - the tool itself is free or near-free, and the real cost is your underlying model API usage.
  • For VS Code, multiple extensions can run side-by-side (e.g., Copilot + Cline + Continue) and be switched per task. Use code --list-extensions to see what's already installed.
  • Pricing is listed for individual developers; team and enterprise tiers typically add SSO, audit logging, admin controls, and zero-data-retention guarantees.
  • Always check the latest pricing pages - this space is moving fast and tiers change frequently.

AI Assisted Development (Online Tools)

Additional Tools to Consider

Below are research notes on popular AI coding tools not yet evaluated as full sections above.

Amazon Q Developer

  • Description: AWS's AI-powered coding assistant (successor to CodeWhisperer). Adds code completions, conversational AI, security scanning, and deep AWS expertise to IDEs and the CLI.
  • URL: https://aws.amazon.com/q/developer/
  • Free tier: Yes - 1,000 LOC/month per user.
  • Paid: Pro $19/user/mo.

Augment Code

  • Description: Agentic software-development platform with a Context Engine that maps codebases by structure rather than keyword. Available via IDE extensions, the Auggie CLI, and a macOS orchestration workspace.
  • URL: https://www.augmentcode.com
  • Free tier: Trial with 30,000 credits.
  • Paid: Indie $20/mo; Standard $60/mo/dev; Max $200/mo/dev; Enterprise custom.

Qwen Code

Devin (Cognition cloud)

  • Description: Cloud-based AI software engineer by Cognition. Autonomous task delegation, planning, coding, and PR review. Separate from the Devin Desktop IDE.
  • URL: https://devin.ai
  • Free tier: Yes - limited agent quota.
  • Paid: Pro $20/mo; Max $200/mo; Teams; Enterprise custom.

Kilo Code

  • Description: Open-source AI coding agent for VS Code, JetBrains, and the CLI. Supports 500+ models, switch models mid-task, and pay model providers at cost with zero markup.
  • URL: https://kilo.ai
  • GitHub: https://github.com/kilo-org/kilocode
  • Free tier: Yes - free and open source.
  • Paid: Pay-as-you-go hosted inference; Kilo Pass optional.

Pieces

  • Description: AI-powered workflow context tool and snippet manager. Captures code, links, notes, and screenshots across the OS with on-device long-term memory and a Pieces Copilot.
  • URL: https://pieces.app
  • Free tier: Yes - full on-device AI, long-term memory, and IDE integrations.
  • Paid: Pro $18.99/mo for premium LLMs and extended memory.

CodeRabbit

  • Description: AI code review agent for GitHub, GitLab, and Azure DevOps. Auto-reviews PRs, generates summaries, and includes an Issue Planner.
  • URL: https://www.coderabbit.ai
  • Free tier: Yes - for open-source public repos.
  • Paid: ~$24/mo/seat or $0.50/agent minute.

Sourcery

  • Description: AI code review and real-time refactoring assistant for Python, JavaScript, and TypeScript. Reviews PRs and suggests clean-code improvements in the IDE.
  • URL: https://sourcery.ai
  • Free tier: Yes - for open-source projects.
  • Paid: Pro $10/mo; Team $30/mo.

Blackbox AI

  • Description: Multi-agent coding platform with Chairman LLM arbitration (dispatches tasks to multiple agents and picks the best result). Includes a proprietary IDE, VS Code extension, CLI, cloud, API, and mobile apps.
  • URL: https://www.blackbox.ai
  • Free tier: Yes - basic tier.
  • Paid: Pro $10/mo; Pro Plus $20/mo; Pro Max $40/mo; Enterprise custom.

Aider

  • Description: Terminal-based AI pair programming tool. Works with your local git repo, supports multiple models, and can edit files in place with automatic commits.
  • URL: https://aider.chat/
  • GitHub: https://github.com/paul-gauthier/aider
  • Free tier: Yes - free and open source.
  • Paid: None (BYO API key).