Kiro
Agentic AI for spec-driven development with parallel agents.
At a glance
Free + paid · Source review 2026-11-04- Price & billing
Free $0 per month verified: 50 credits, open-weight models and Claude Sonnet 4.5. Paid tiers are page observations in $ without a named currency: Pro $20, Pro+ $40, Pro Max $100, Power $200 per user per month, plus add-on credits at $0.04 per credit.
- Free allowance
Free $0 per month verified: 50 credits, open-weight models and Claude Sonnet 4.5.
- Best suited to
Developers and teams that want structure in AI coding through spec-driven development.; Teams that want to catch issues unit tests miss, using property-based tests that assert rules across all inputs.; Teams building across large codebases with parallel agents, on a local machine or in the cloud, from plan to pull request.
Fit is editorial guidance, not a measured result.- Platforms
Access: not separately verified. Operating systems not separately verified.
Published-source facts and editorial guidance. No product test is implied. Confirm current conditions before purchase.
No product screenshot is claimed for this listing. Use the official website ↗ to inspect the current interface.
What to know before choosing
Good fit
Developers and teams that want structure in AI coding through spec-driven development.; Teams that want to catch issues unit tests miss, using property-based tests that assert rules across all inputs.; Teams building across large codebases with parallel agents, on a local machine or in the cloud, from plan to pull request.
Limits and trade-offs
Users who need premium models on the free tier, since Free includes open-weight models and Claude Sonnet 4.5 while premium models are on paid tiers.; Users who need more than 50 credits a month on the free tier, since Free covers 50 credits and further use needs a paid tier or add-on credits.; Users who prefer vibe coding without specs, since Kiro centers spec-driven development with requirements, designs, and tasks.
Plans and free allowances
Free $0 per month verified: 50 credits, open-weight models and Claude Sonnet 4.5. Paid tiers are page observations in $ without a named currency: Pro $20, Pro+ $40, Pro Max $100, Power $200 per user per month, plus add-on credits at $0.04 per credit.
Evidence
Official homepage ↗ (reviewed 2026-11-04), Official pricing page ↗ (reviewed 2026-11-04), Official FAQ page ↗ (reviewed 2026-11-04)
Official published documentation reviewed; not a product test
Dates: Last reviewed 2026-11-04. Last reviewed is the latest source or editorial review date; it is not a content-change date.
A closer look at Kiro
Kiro is an agentic AI for developers and teams, available as an IDE, CLI, web interface, mobile app, and Kiro Crew: turn prompts into executable specs with requirements, architectural designs, and sequenced tasks, validate code correctness with automated reasoning and property-based tests that catch bugs unit tests miss, and build across large codebases with parallel agents that learn from every session.
Editorial guidance based on published documentation. The workflow below is a suggested starting point, not a measured product result.
When to choose Kiro
- Developers and teams that want structure in AI coding through spec-driven development.
- Teams that want to catch issues unit tests miss, using property-based tests that assert rules across all inputs.
- Teams building across large codebases with parallel agents, on a local machine or in the cloud, from plan to pull request.
When to choose something else
- Users who need premium models on the free tier, since Free includes open-weight models and Claude Sonnet 4.5 while premium models are on paid tiers.
- Users who need more than 50 credits a month on the free tier, since Free covers 50 credits and further use needs a paid tier or add-on credits.
- Users who prefer vibe coding without specs, since Kiro centers spec-driven development with requirements, designs, and tasks.
A practical starting workflow
- Install the CLI or download Kiro and turn a prompt into a spec with requirements, designs, and sequenced tasks.
- Let parallel agents implement the spec, checking requirements for contradictions and gaps with automated reasoning.
- Validate behavior with property-based tests, then ship maintainable code that matches the specification.
Check before committing
- Paid tier amounts appear without a named currency on the pricing page, Pro $20, Pro+ $40, Pro Max $100, and Power $200 per user per month, so they are described as page observations and not recorded as structured facts.
- The pricing page states that prices do not include applicable taxes or duties unless explicitly noted.
Common questions
What is Kiro?
Kiro is an agentic AI with an IDE, CLI, web interface, mobile app, and Kiro Crew that helps developers and teams turn prompts into executable specs, validate code correctness to find bugs unit tests miss, and build across large codebases with parallel agents.
What does the free tier include?
The free tier is $0 per month with 50 credits and access to open-weight models and Claude Sonnet 4.5, as a perpetual tier for new users.
How does Kiro pricing work?
Kiro offers flexible tiers around developer use: a perpetual free tier with 50 credits, paid tiers from Pro to Power for increased capacity, and add-on credits at $0.04 per credit to continue beyond plan limits.
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Sources and checks
Last source review is not a date of product testing. No rating or test result is implied by inclusion. Check the current plan and terms before buying.