Compare · Prices checked October 29, 2026 and October 28, 2026
Kiro vs Claude Code vs OpenAI Codex (2026)
Published starting prices: Kiro, Free; Pro $20/user/mo. Claude Code, from $20/mo. OpenAI Codex, Free; Plus $20/mo. All three side by side: public pricing, what each does, real use cases and who each suits, from our listings with sources. We haven't tested them hands-on.
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CodingFree tier
Kiro
AWS's agentic IDE that works from specs: it turns a prompt into requirements, a design and tasks, then writes the code.
Per seatFree; Pro $20/user/mo
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Coding
Claude Code
Anthropic's coding agent for the terminal, editor and web. It reads your codebase, makes changes and runs commands.
Subscription · 8 use casesfrom $20/mo
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CodingFree tier
OpenAI Codex
OpenAI's coding agent, in a desktop app, CLI, IDE extension and on the web; included with ChatGPT plans.
Subscription · 5 use casesFree; Plus $20/mo
Short answer: Kiro vs Claude Code vs OpenAI Codex pricing
Lowest listed monthly plans: Kiro Pro: $20/user/mo (1,000 credits); Claude Code Pro: $20/mo ($17/mo billed annually, $200 up front; Claude Code included); OpenAI Codex Go: $8/mo (lightweight tasks). Of the plans listed in US dollars per month, OpenAI Codex lists the lowest. Kiro and OpenAI Codex have a free plan. Plans differ in what they include (credits, usage limits and models) and some are billed yearly, so compare the plan details. Checked October 29, 2026 and October 28, 2026. Kiro: yes. Its Free plan is $0/month (50 credits), checked October 29, 2026. Claude Code: no $0 plan on its pricing page (checked October 28, 2026). OpenAI Codex: yes. Its Free plan is $0 (quick tasks), checked October 28, 2026.
Pricing side by side · FAQ · Just two of them? Claude Code vs OpenAI Codex · Kiro vs Claude Code · Kiro vs OpenAI Codex
Pricing side by side
| Item |  Kiro |  Claude Code |  OpenAI Codex |
|---|---|---|---|
| Starting price | Free; Pro $20/user/mo | from $20/mo | Free; Plus $20/mo |
| Pricing model | Per seat | Subscription | Subscription |
| Free plan | Yes | No | Yes |
| Plans |
|
|
|
| Pricing note | not published | Also available pay-as-you-go through the Anthropic API. | Or use your own API key and pay API prices. |
| Checked | October 29, 2026 | October 28, 2026 | October 28, 2026 |
| Source | Vendor pricing page | Vendor pricing page | Vendor pricing page |
Copied from each vendor's public pricing page on the date shown. "not published" means the vendor doesn't publish it; we don't guess. Prices change; confirm with the vendor.
Features and details from our listings
| Item | Kiro | Claude Code | OpenAI Codex |
|---|---|---|---|
| What it is | AWS's agentic IDE that works from specs: it turns a prompt into requirements, a design and tasks, then writes the code. | Anthropic's coding agent for the terminal, editor and web. It reads your codebase, makes changes and runs commands. | OpenAI's coding agent, in a desktop app, CLI, IDE extension and on the web; included with ChatGPT plans. |
| Made by | Amazon Web Services | Anthropic | OpenAI |
| Listed under | Coding agents | Coding agents | Coding agents |
| Jobs it fits |
|
|
|
| Verified public use cases | 0 | 8 | 5 |
Who each is best for
- Per seatFree plan
Kiro is best for
- Teams that need to: Turn a spec into working code; Run coding agents in an IDE.
- Budget: starts at Free; Pro $20/user/mo (per seat, free plan available).
- Subscription
Claude Code is best for
- Teams that need to: Make larger changes in an existing codebase; Update old code to run on modern systems; Security and code review passes.
- Budget: starts at $20/mo (subscription).
- Watch out: In April 2026 a heavily upvoted GitHub issue said Claude Code had become unusable for complex engineering tasks after updates; quality can shift between releases. Source
- SubscriptionFree plan
OpenAI Codex is best for
- Teams that need to: Port or rewrite code against a test suite; Delegate coding tasks to run in the cloud.
- Budget: starts at Free; Plus $20/mo (subscription, free plan available).
From our listing data (jobs and public pricing); not a hands-on test. Full details: Kiro · Claude Code · OpenAI Codex.
FAQ
Which is cheapest: Kiro, Claude Code or OpenAI Codex?
Lowest listed monthly plans: Kiro Pro: $20/user/mo (1,000 credits); Claude Code Pro: $20/mo ($17/mo billed annually, $200 up front; Claude Code included); OpenAI Codex Go: $8/mo (lightweight tasks). Of the plans listed in US dollars per month, OpenAI Codex lists the lowest. Kiro and OpenAI Codex have a free plan. Plans differ in what they include (credits, usage limits and models) and some are billed yearly, so compare the plan details. Checked October 29, 2026 and October 28, 2026.
Are Kiro, Claude Code and OpenAI Codex free?
Kiro: yes. Its Free plan is $0/month (50 credits), checked October 29, 2026. Claude Code: no $0 plan on its pricing page (checked October 28, 2026). OpenAI Codex: yes. Its Free plan is $0 (quick tasks), checked October 28, 2026.
How much does Kiro cost?
Kiro lists Free: $0/month (50 credits); Pro: $20/user/mo (1,000 credits); Pro+: $40/user/mo (2,000 credits); Pro Max: $100/user/mo (5,000 credits); Power: $200/user/mo (10,000 credits). Its lowest listed monthly plan is Pro: $20/user/mo (1,000 credits). Checked October 29, 2026 on the vendor's pricing page.
How much does Claude Code cost?
Claude Code lists Pro: $20/mo ($17/mo billed annually, $200 up front; Claude Code included); Max 5x: $100/mo (5x Pro usage); Max 20x: $200/mo (20x Pro usage). Its lowest listed monthly plan is Pro: $20/mo ($17/mo billed annually, $200 up front; Claude Code included). Also available pay-as-you-go through the Anthropic API. Checked October 28, 2026 on the vendor's pricing page.
How much does OpenAI Codex cost?
OpenAI Codex lists Free: $0 (quick tasks); Go: $8/mo (lightweight tasks); Plus: $20/mo (Codex on web, CLI, IDE); Pro: from $100/mo (plans at $100, $200 or $500/mo); Business: $25/user/mo ($20 billed annually). Its lowest listed monthly plan is Go: $8/mo (lightweight tasks). Or use your own API key and pay API prices. Checked October 28, 2026 on the vendor's pricing page.
Did AITeamGuide test them?
Not hands-on. This comparison is built from each vendor's public pricing page (with the date we checked it), published product information and credited public use cases.
Can a vendor pay to win this comparison?
No. Nothing here is paid. Paid placements on AITeamGuide are always labelled "Sponsored" or "Featured" and never change a comparison or ranking.
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Work at Kiro or Claude Code or OpenAI Codex? Vendors can claim their listing for free or feature it with a label that says "Sponsored"; paid status never changes the order on this page. Building a different agent? List it here.
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