Aider vs Bolt.new
A side-by-side comparison of capabilities, autonomy, integrations, and pricing to help you choose.
Short answer: choose Aider if you want open-source ai pair programming in your terminal, backed by git (Supervised agent, free); choose Bolt.new if you want prompt, edit, and deploy full-stack web apps in the browser (Supervised agent, freemium).
| Aider | Bolt.new | |
|---|---|---|
| What it is | Open-source AI pair programming in your terminal, backed by Git | Prompt, edit, and deploy full-stack web apps in the browser |
| Type | agent | agent |
| Autonomy | Supervised agent | Supervised agent |
| Pricing | free · Free (open source; pay your own model costs) | freemium · Free (1M tokens/mo); Pro from $25/mo |
| Best for | developers | consumers, developers, smb |
| Deployment | self-hosted | saas |
| Modalities | text, code | text, code |
| Models | model-agnostic | claude, model-agnostic |
| Protocols | function-calling, rest-api | rest-api |
| Integrations | Git, GitHub, OpenAI, Anthropic, Google Gemini, DeepSeek | Netlify, Supabase, GitHub, Expo |
| Capabilities | 4 documented | 3 documented |
Aider
- +Fully open source (Apache-2.0) and free; you only pay your chosen model provider
- +Git-native: every AI change is a reviewable, revertible commit
- +Model-agnostic with a repo map that scales to larger codebases
- -Terminal-only with no GUI or IDE-native experience for those who want one
- -Runs locally and edits real files, so a human must review every change
Bolt.new
- +Full dev environment runs in the browser via WebContainers, with the AI controlling filesystem, terminal, and server
- +Generates true full-stack apps (not just UI) and can deploy via Bolt Cloud
- +No local setup; fast for prototyping and iterating by chatting
- -Token-based usage cost can rise quickly on complex or long-running builds
- -Output needs human review and iteration; it is not a hands-off autonomous engineer
Which should you choose?
Aider is open-source ai pair programming in your terminal, backed by git, best for developers. Bolt.new is prompt, edit, and deploy full-stack web apps in the browser, best for consumers, developers, smb. The right choice depends on the autonomy level you want, your existing integrations, and your budget, all compared above.