Kiro review

Kiro stands out for structure. Instead of going straight from prompt to code, it writes requirements, an architecture design and a sequenced task list, then implements them with parallel agents, and it checks requirements for contradictions and adds property-based tests that assert rules across all inputs. It runs as an IDE, a CLI, a web app and in ACP-compatible editors, and the headless CLI can review pull requests in CI. Pricing is the most transparent on this list: Free includes 50 credits a month, Pro is $20 per user for 1,000 credits, and add-on credits cost $0.04 each. Each model has a published credit multiplier, from 0.06x for Claude Haiku 5.5 to 6.0x for Claude Fable 5.1 relative to Auto. Teams buy pooled seats at $20 each with 500 credits per seat. The trade-off is that unused individual credits expire each month.

Who it is for

Developers and teams who want structured specs, property-based tests and predictable credit-based pricing.

Price

Free plan with 50 credits; Pro $20 per user per month with 1,000 credits; team seats $20 with 500 pooled credits.

KIRO PRO $20 per user / month 1,000 credits
Quoted from the vendor pricing page on November 6, 2026.

Key features

• Spec-driven development that turns prompts into requirements, designs and tasks
• Property-based tests to catch edge cases unit tests miss
• Parallel agents locally or in the cloud
• Headless CLI for pull request reviews and fixes in CI/CD
• Credit pooling for teams of two or more

Strengths and weaknesses

• Strength: Free plan with 50 credits a month and Claude Sonnet 4.5
• Strength: Add-on credits at a published $0.04 each
• Strength: First upgrade to Pro gives the rest of the month free plus 500 trial credits
• Weakness: Unused monthly credits do not roll over on individual plans
• Weakness: Premium models such as Claude Opus 5.5 cost several times Auto's credit rate
• Weakness: Use through third-party automation harnesses is not permitted

Key facts

• Free plan: Yes, 50 credits per month
• Pro: $20 per user per month, 1,000 credits
• Pro+: $40 per user per month, 2,000 credits
• Power: $200 per user per month, 10,000 credits
• Add-on credits: $0.04 per credit

Where it ranks

Kiro is No. 6 in our Best AI Coding Assistants verdict.