Kiro vs Codex: Features, Pricing and User Reviews 2026
What are Kiro and Codex?
Kiro is a coding tool built by AWS that helps developers write software with the help of AI agents. Instead of turning a prompt straight into code, Kiro first turns your idea into clear written plans, called specs. These specs include requirements, a design plan, and a list of tasks that need to be done. AI agents then use these plans to write the code, run tests, and check that the result actually matches what you asked for. Kiro is built on Amazon Bedrock and follows AWS security and privacy standards. It works as a desktop app, a command line tool, a web app, and a mobile app, and it is used by solo developers, teams, and large companies.
Codex is an AI coding agent from OpenAI that can plan, write, test, and fix code with real autonomy. You describe a task in plain language, and Codex works through your project step by step, running commands, checking tests, and preparing changes for you to review.
It started as a tool for software engineers but has grown into a wider work assistant used by analysts, designers, and other non-technical teams too. Codex runs in isolated spaces, so it does not touch your main project files directly.
You can use it from a desktop app, a command line tool, inside your code editor, or through ChatGPT on the web, and everything stays in sync across each place you work.
Features of Kiro and Codex
Spec-driven development with requirements, design, and tasks
Parallel AI agents for faster work
Correctness checks beyond simple tests
Steering for consistent team standards
Hooks for automatic actions on file changes
Ready-made Powers for Figma, Terraform, AWS
MCP support for outside tools and data
Multiple models including Claude and GPT
Desktop, CLI, web, and mobile apps
Enterprise security and admin controls
AI agent for coding, testing, and reviewing
Multi-agent parallel task execution
Isolated sandboxes for safe changes
Reusable skills for repeat workflows
Role-based plugins for teams
Background automations for recurring tasks
Desktop, CLI, IDE, and web access
Synced work across your ChatGPT account
Approval gates and permission controls
Used by developers and knowledge workers
Use Cases of Kiro and Codex
Pricing of Kiro and Codex
Kiro offers a free plan and several paid plans based on monthly credits. The Free plan costs nothing and gives you 50 credits, open-weight models, and access to Claude Sonnet 4.5. Paid plans range from $20 to $200 per user each month, with credits growing from 1,000 up to 10,000. All paid plans let you buy extra credits for $0.04 each. Team versions add single sign-on, usage reports, and central billing, while Enterprise offers custom pricing for larger organizations.
Free: $0/month, 50 credits, open-weight models and Claude Sonnet 4.5
Pro: $20/user/month, 1,000 credits, premium models
Pro+: $40/user/month, 2,000 credits, premium models
Pro Max: $100/user/month, 5,000 credits, premium models
Power: $200/user/month, 10,000 credits, premium models
Enterprise: Custom pricing, extra security and admin controls
Codex is included as part of ChatGPT's plans, so pricing depends on which plan you choose.
Free ($0/month): Limited access to Codex along with basic chat features.
Go ($8/month): More messages, uploads, and memory, though Codex access stays limited.
Plus ($20/month): Unlocks expanded Codex usage along with stronger models and more features.
Pro (from $100/month): Gives the most Codex tasks, top-tier models, and unlimited image creation.
Business: Costs $20 per user a month billed yearly, or $25 monthly, with a minimum of two users, and includes full Codex access with admin tools.
Enterprise: Custom pricing that adds advanced security, data controls, and priority support.
FAQs: Kiro vs Codex
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