What is Kiro?
Kiro is an AI development tool built and operated by AWS. Its main idea is spec-driven development: a prompt is turned into requirements, architectural designs and sequenced tasks, which the agents then implement. Before code is written, Kiro checks requirements for contradictions and gaps using automated reasoning, and it verifies behavior with property-based tests that assert rules across many inputs instead of a few examples.
In practice you can plan features with specs, run multiple agents in parallel on your local machine or in the cloud, and pull context from tools such as Figma or Terraform. The headless Kiro CLI can also run in CI/CD to review pull requests and fix bugs without an editor. Users can pick a model per task or let Auto choose one, and the tool supports AGENTS.md, MCP and Open VSX extensions.
Key features
- Spec-driven development: prompts turned into requirements, designs and tasks
- Property-based tests that check rules across many inputs
- Automated reasoning to find contradictions and gaps in requirements
- Parallel agents running locally or in the cloud
- Headless CLI for CI/CD pull request review
- Model selection per task, including an Auto mode
Who is it for
- software developers
- engineering teams
- enterprise development organizations
How to get started with Kiro
- Download Kiro and sign in with social login or AWS Builder ID
- Open your project in the IDE or run the CLI version
- Describe the task and Kiro generates requirements, design, and task list
- You work on a large codebase and need changes that follow a specification
- You want property-based tests that catch edge cases missed by unit tests
- Your team needs enterprise standards and PR review running in CI/CD
- You need a Polish-language interface, which the tool does not offer
- You need a larger free allowance, as the Free plan has only 50 credits per month
Pros and cons
- Catches edge cases that pass unit tests
- Enterprise controls such as IAM, SSO and usage dashboards
- Credit-based usage; complex tasks cost more credits
- Some premium models are not available in all countries or regions
Kiro pricing
| Plan | Price | Includes |
|---|---|---|
| Kiro Free | 0 USD / month | 50 credits; open weight models and Claude Sonnet 4.5; rate limits |
| Kiro Pro | 20 USD / month | 1,000 credits; premium models; add-on credits at 0.04 USD per credit |
| Kiro Pro+ | 40 USD / month | 2,000 credits; premium models; add-on credits at 0.04 USD per credit |
| Kiro Pro Max | 100 USD / month | 5,000 credits; premium models; add-on credits at 0.04 USD per credit |
| Kiro Power | 200 USD / month | 10,000 credits; premium models; add-on credits at 0.04 USD per credit |
Prices copied from Kiro pricing, checked October 12, 2026. Currency as shown by the vendor; taxes may apply.
Is Kiro free?
Yes, there is a free plan. Kiro Free: 50 credits, access to open weight models and Claude Sonnet 4.5, subject to rate limits.
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Kiro alternatives
| Tool | Price from | Free plan | Category |
|---|---|---|---|
 Google Antigravity | 30 USD/mo | yes | Coding |
 Cursor | 20 USD/mo | yes | Coding |
 OpenAI Codex | 71 PLN/mo | no | Coding |
 Kilo Code | 15 USD/mo | yes | Coding |
 Devin Desktop | 20 USD/mo | yes | Coding |
 Visual Studio | not listed | yes | Coding |
FAQ
What is Kiro used for?
AI coding agent from AWS that turns prompts into specs, tests code correctness, and runs parallel agents for developers and teams.
Is Kiro free?
Yes, there is a free plan. Kiro Free: 50 credits, access to open weight models and Claude Sonnet 4.5, subject to rate limits.
How much does Kiro cost?
The cheapest paid plan is 20 USD/mo (vendor pricing, October 12, 2026).
What are the best Kiro alternatives?
Closest alternatives: Google Antigravity, Cursor, OpenAI Codex, Kilo Code, Devin Desktop.
Data checked October 12, 2026 on the vendor website (kiro.dev).