Kiro is an AI coding environment backed by AWS that plans before it codes. Give it an idea and it writes requirements, a technical design and a task list as files in your repo, then its agents build the feature step by step. Built on VS Code and launched in mid-2025, Kiro is aimed at developers who want AI speed without the chaos of “vibe coding”.
Kiro review
Kiro’s big idea is spec-driven development. Most AI editors jump straight from prompt to code, which works for small changes but can turn messy on bigger features. Kiro first produces a spec: user stories, a design and a breakdown of tasks. You review and edit it, then run tasks one by one, with the plan kept in your repo for the whole team to see.
Two other features make it feel built for real teams. Hooks are automations that fire on events, like updating tests when a file changes or running checks before a commit. Steering files hold your conventions (code style, architecture rules, preferred libraries), so the agent follows them on every task. Because it is based on VS Code, most extensions and settings carry over.
Pricing has been its weak spot. Changes after the 2025 preview drew loud criticism from developers who found request-based limits confusing and expensive for heavy use. The free tier is fine for trying it, but serious daily use needs a paid plan, and you should watch your usage.
Key features
Specs
Turns a prompt into requirements, a design and a task list saved as markdown in your repo before any code is written.
Agent hooks
Event-driven automations, for example updating docs or tests whenever certain files change.
Steering files
Project rules the agent reads on every task, so output matches your team’s conventions.
Vibe mode
A quick chat-and-code mode for small changes when a full spec is overkill.
VS Code foundation
Familiar editor, with support for many VS Code extensions and settings.
AWS integration
Natural fit for teams building on AWS.
Who Kiro is best for
- Engineering teams: Shared, reviewable specs make AI-built features easier to trust.
- Developers on larger features: Planning first reduces rework on multi-file changes.
- AWS-centric companies: Fits existing AWS workflows and accounts.
- Tech leads: Steering files enforce standards across AI-written code.
Strengths
- Spec-first workflow produces cleaner, better-documented features
- Hooks and steering files are genuinely useful for teams
- Familiar VS Code base with a free tier to start
- Plans live in the repo, so they are reviewable and shareable
Weaknesses
- Pricing changes drew strong criticism and usage limits can feel tight
- Free tier is small for daily use
- Spec workflow can feel slow for quick fixes
- Model choice is narrower than some rivals
Kiro pricing
- Free: a small monthly allowance of agent usage, no card needed.
- Pro: about $20/month.
- Pro+: $40/month for higher limits.
- Power: $200/month for heavy users.
Usage beyond your plan is billed per request. Spec task requests cost more than quick chat requests, so check the usage dashboard regularly.
Prices checked November 2026. AI tool pricing changes often, so confirm on the official Kiro site before you buy.
How to get started with Kiro
- Download Kiro from kiro.dev and sign in.
- Open an existing project and add a steering file with your coding conventions.
- Describe a small feature and review the spec Kiro writes before running any tasks.
- Add one hook, such as updating tests on save, and watch your usage for the first week.
Kiro alternatives
- Cursor: The most popular AI code editor, faster for quick prompt-to-code work.
- Google Antigravity: Google’s multi-agent IDE with a built-in browser for testing.
- Windsurf: An agentic IDE built for long, flowing coding sessions.
- GitHub Copilot: Broad editor support and tight GitHub integration.
Our verdict
Kiro is the best option if you want AI coding with structure: specs, hooks and steering make AI-built features easier to review and maintain. It is less suited to quick hacks, and its usage-based pricing needs watching. Try the free tier on a real feature before you commit.
Kiro FAQ
Is Kiro free?
Yes. Kiro has a free tier with a small monthly allowance. Paid plans start at about $20 a month, with Pro+ at $40 and Power at $200.
Who makes Kiro?
Kiro is backed by Amazon Web Services (AWS). It launched in preview in mid-2025 and is built on VS Code.
What is spec-driven development in Kiro?
Kiro writes requirements, a design and a task list first, then builds the feature task by task, keeping the plan in your repo.
Sources: Kiro pricing explained (kiro.dev), The Register on Kiro pricing. Compare more options in our directory of 1,000+ AI tools.
