Aider vs Bolt.new

Aider (Paul Gauthier (open source)) and Bolt.new (StackBlitz) compared head-to-head: prices from $0 and $0, model-dependent vs. model-dependent context, free tiers, models, limits plus strengths and weaknesses. Find out which AI coding agent fits your workflow.

Aider vs Bolt.new — Category side-by-side

Provider	Aider Paul Gauthier (open source)	Bolt.new StackBlitz
From /month	Free	Free
Billing	BYO-key (usage)	freemium + tokens
Top models	Claude Sonnet 4, GPT-5, DeepSeek	Claude Sonnet 4, GPT-5, Gemini 2.5 Pro
Context	model-dependent	model-dependent
Limits	whatever your API key allows	token-based; Pro: 10M tokens/mo
Free tier	free software (model usage billed separately)	yes — daily token allowance
Best for	Terminal-first devs who want git-native AI edits	Building & shipping fullstack apps from a prompt
Strengths	Git-native workflow Works with any API provider Lightweight CLI	Deploy-from-prompt Zero-setup browser IDE Fast prototyping
Weaknesses	CLI only You supply & pay for the model	Token costs on big apps Less control than local dev

Recommendation by priority

💰 On a budget? Aider ($0) is cheaper than Bolt.new ($0).

Aider is especially strong when you care about "Terminal-first devs who want git-native AI edits".

Go to Aider → Go to Bolt.new →

Frequently asked questions: Aider vs Bolt.new

Aider or Bolt.new: which is cheaper?

The entry price depends on each provider and plan tier. This page shows the current indicative values side by side.

Which offers more context — Aider or Bolt.new?

Aider reaches model-dependent, Bolt.new reaches model-dependent. More context helps with long files and large repos.

Is there a free tier for Aider or Bolt.new?

Yes — details on free tiers and free quotas are in the side-by-side table above.