Aider vs Bolt.new
Pricing
Aider: Free (open source), you pay for API usage
| Plan | Price | Includes |
|---|---|---|
| Open source | $0 | Apache-2.0 licence; you supply your own LLM API key or run a local model |
Prices checked on the vendor's page
Bolt.new: Free tier (1M tokens/mo), Pro $25/mo
| Plan | Price | Includes |
|---|---|---|
| Free | $0 | 1M tokens a month, 300K daily limit, Bolt branding on sites |
| Pro | $25/mo | 10M tokens a month with rollover, custom domain, no Bolt branding |
| Teams | $30/member/mo | Pro per member plus centralized billing and admin controls |
Prices checked on the vendor's page
Description
Aider: Open-source terminal AI that edits your code and makes clean git commits automatically
Bolt.new: Build full-stack web apps in your browser by describing what you want, no local setup needed
Best for
Aider: Developers who code in the terminal and want an AI pair programmer that commits each change to git.
Bolt.new: Non-technical founders who want to build and host a web app or site from a prompt in the browser.
Pros
- Git-aware: every change is a well-described commit you can review or revert
- Works with Claude, OpenAI and DeepSeek models, plus local models
- Maps your whole codebase and can run linters and tests after each change
- Zero setup: open a browser tab and start building
- Live preview updates as the AI writes code
- Supports React, Next.js, Astro, and more out of the box
Cons
- Terminal-only: no GUI, no visual diff preview
- API costs are yours to manage and can add up with large context
- Development has slowed: the latest release, v0.86.0, came out in August 2025
- Free tier token limits mean you hit walls mid-project
- Browser-based means no access to native tools, local databases, or heavy computation
- Generated code can be messy and hard to maintain long-term
Details
Aider is a terminal tool that pair-programs with you. You tell it what to change, it edits the files, and (here is the part that wins people over) it creates a clean git commit with a descriptive message. Every change is tracked, reviewable, and revertable. No other AI coding tool handles version control this naturally.
Built by Paul Gauthier, it builds a map of your whole repository so it can work on larger codebases. The tradeoff is that it is terminal-only and requires you to bring your own API key, and there is a learning curve to getting the most out of it (knowing which files to add, how to prompt). Development has also slowed: the latest release, v0.86.0, came out in August 2025, and the repository has had no new commits since May 2026, so support for newer models may lag. If you are already comfortable with git and the command line, aider fits into your workflow like a glove. If you want a visual editor experience, look at Cursor or Cline instead.
Bolt.new runs a full Node.js environment inside your browser using WebContainers. You describe what you want to build, it writes the code, and you see a live preview instantly. No installing Node, no terminal, no VS Code, just a browser tab.
This is genuinely useful for prototyping. You can go from “I need a landing page with a waitlist form” to a working app in minutes. But the limitations show up when you try to build something complex: the free tier token limits are tight, and the generated code sometimes needs cleanup before it is production-ready. Think of it as a rapid prototyping tool, not a replacement for a real development setup.
Aider verified
Bolt.new verified
