Bolt.new vs Kiro
A side-by-side comparison of capabilities, autonomy, integrations, and pricing to help you choose.
Short answer: choose Bolt.new if you want prompt, edit, and deploy full-stack web apps in the browser (Supervised agent, freemium); choose Kiro if you want aws's spec-driven agentic ide for structured software engineering (Supervised agent, freemium).
| Bolt.new | Kiro | |
|---|---|---|
| What it is | Prompt, edit, and deploy full-stack web apps in the browser | AWS's spec-driven agentic IDE for structured software engineering |
| Type | agent | product-with-agents |
| Autonomy | Supervised agent | Supervised agent |
| Pricing | freemium · Free (1M tokens/mo); Pro from $25/mo | freemium · $0 (Free, 50 credits); Pro $20/mo |
| Best for | consumers, developers, smb | developers, mid-market, enterprise |
| Deployment | saas | saas, api |
| Modalities | text, code | text, code |
| Models | claude, model-agnostic | claude, open-source, model-agnostic |
| Protocols | rest-api | mcp, function-calling |
| Integrations | Netlify, Supabase, GitHub, Expo | Amazon Bedrock, AWS IAM Identity Center, MCP servers, Amazon Q Developer (migration) |
| Capabilities | 3 documented | 4 documented |
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
Kiro
- +Spec-first workflow makes AI output more reviewable, auditable, and team-ownable than free-form prompting
- +Model-flexible via Amazon Bedrock (Claude, DeepSeek, MiniMax, open-weight) with task-based routing
- +Backed by AWS with enterprise auth (SAML/SCIM SSO) and a migration path from Amazon Q Developer
- -Credit-based usage can get expensive and unpredictable at scale, and unused credits do not roll over
- -The requirements/design/tasks process adds overhead versus lightweight assistants for quick edits
Which should you choose?
Bolt.new is prompt, edit, and deploy full-stack web apps in the browser, best for consumers, developers, smb. Kiro is aws's spec-driven agentic ide for structured software engineering, best for developers, mid-market, enterprise. The right choice depends on the autonomy level you want, your existing integrations, and your budget, all compared above.
This comparison is generated from the sourced Bolt.new and Kiro profiles. Open either profile to review its evidence and last-reviewed date.