AWS · Tools

Kiro

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At a glance

Price
from 20 $/mo
Vendor
AWS

Specifications & properties

Key decision factors

Pricing model
Freemium 1
Tool form
  • Standalone IDE
1
Autonomy level
Autonomous agent 1
Model choice
Multiple models 1

Pricing

Price from
20 $/mo 1
Free tier
Yes 1

Model

Available models
Auto (mix of frontier models), Claude Sonnet 4.5/4.6, Haiku 4.5, Opus, open weight models 1

Integration

MCP support
Yes 1
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Agentic IDE from AWS built on Code OSS that structures AI coding with spec-driven development and parallel agents.

Profile

Kiro is an agentic engineering platform built by AWS that pushes past ad-hoc "vibe coding" prompts toward spec-driven development, turning a prompt into structured requirements, a design, and a sequenced task list before agents start implementing.

Who builds it

Kiro is built and operated by a small, opinionated team within AWS, on AWS infrastructure. The name is meant to evoke "a hardworking person who never gives up," reflecting the team's stated goal of iterating quickly on an AI-powered development experience rather than shipping a single, static assistant.

Core features

  • Spec-driven development: converts an initial prompt into requirements, an architectural design, and a sequenced task list before any code is written, instead of jumping straight to generation.
  • Correctness validation: uses property-based testing to catch edge cases that conventional unit tests can miss.
  • Parallel agents: multiple agents can work on a codebase at once and carry learning across sessions rather than starting from zero each time.
  • Multiple surfaces: available as an IDE, a CLI, a web browser experience, and a mobile app, so work can be reviewed or steered from different contexts.
  • Tool integrations: connects to Figma, Terraform, GitHub, GitLab, and CI/CD systems as part of a spec-to-implementation workflow.
  • Broad language support: Python, JavaScript, TypeScript, Java, Rust, Go, and other common languages.
  • Enterprise controls: IAM/SSO authentication, usage dashboards, cost controls, and governance features built on AWS infrastructure.

Pricing

Kiro uses a credit-based model with no daily or weekly rate limits, letting you choose among multiple AI models (including Claude Opus, Sonnet, and Haiku, among others) at different credit costs:

  • Kiro Free: $0/month — 50 credits, with access to open-weight models and Claude Sonnet 4.5.
  • Kiro Pro: $20/month — 1,000 credits, premium model access, add-on credits at $0.04 each.
  • Kiro Pro+: $40/month — 2,000 credits, same premium model access and add-on rate.
  • Kiro Pro Max: $100/month — 5,000 credits.
  • Kiro Power: $200/month — 10,000 credits.
  • Team plans mirror the individual pricing tiers per user, adding consolidated billing, usage analytics, SSO via AWS IAM Identity Center, and organizational dashboards.
  • Unused monthly credits expire and don't roll over; new users signing up via social login or AWS Builder ID get a $20 signup bonus.

Who it's for

Teams and individual developers who want AI agents to work from an agreed specification rather than a loose prompt — useful for larger codebases where an unreviewed "vibe coded" change is risky, and for organizations already standardized on AWS that want IAM/SSO-based governance over who can run agents and how much they can spend. The free tier's 50 credits are enough to trial the spec-driven workflow before committing to a paid plan.

Frequently asked questions

Is Kiro free?

Yes, Kiro Free is $0/month and includes 50 credits along with access to open-weight models and Claude Sonnet 4.5, which is enough to trial the spec-driven workflow before upgrading to a paid tier.

What does Kiro cost beyond the free tier?

Paid individual tiers are Kiro Pro at $20/month (1,000 credits), Kiro Pro+ at $40/month (2,000 credits), Kiro Pro Max at $100/month (5,000 credits), and Kiro Power at $200/month (10,000 credits), with add-on credits available at $0.04 each once your monthly allotment runs out.

What is spec-driven development in Kiro?

Instead of generating code straight from a loose prompt ("vibe coding"), Kiro first turns your prompt into structured requirements, an architectural design, and a sequenced task list, then has agents implement against that spec, which the team frames as better suited to building across large codebases.

Who builds Kiro?

Kiro is built and operated by AWS, specifically a small, opinionated team within Amazon, and runs on AWS infrastructure with enterprise features like IAM/SSO authentication built in.

Does Kiro have team or enterprise pricing?

Yes. Kiro's Team plans mirror the individual pricing tiers on a per-user basis ($20 to $200 per user per month) and add consolidated billing, usage analytics, SSO via AWS IAM Identity Center, and organizational dashboards for governance.

What platforms and languages does Kiro support?

Kiro is available as an IDE, a CLI, a web browser experience, and a mobile app, and supports common languages including Python, JavaScript, TypeScript, Java, Rust, and Go, with integrations for tools like Figma, Terraform, GitHub, and GitLab.