Kiro vs OpenAI Codex
Short answer: Kiro is in AI IDEs; OpenAI Codex is in CLI coding agents, so they solve different parts of the job. OpenAI Codex has the lower entry price ($8/month vs $20/month for Kiro). Both Kiro and OpenAI Codex have a free plan.
| Kiro | OpenAI Codex | |
|---|---|---|
| Type | AI IDEs | CLI coding agents |
| Vendor | Amazon Web Services | OpenAI |
| Status | Active | Active |
| Free plan | Yes (Perpetual free tier with 50 credits.) | Yes (Codex is included in ChatGPT Free (quick coding tasks).) |
| Paid plans from | $20/mo | $8/mo |
| Plans | Free: Free · Pro: $20 · Pro+: $40 · Pro Max: $100 · Power: $200 · Enterprise: — | Free: Free · Go: $8 · Plus: $20 · Pro: $100 · Business: $25 · Enterprise & Edu: — |
| Open source | Not verified yet | Not verified yet |
| Editors named on vendor page | VS Code, terminal/CLI | terminal/CLI |
| Features named on vendor page | MCP, code review, background/cloud agents, Figma, test generation, documentation generation, SSO/SAML | MCP, self-hosting, code review, code completion, security scanning, background/cloud agents, SSO/SAML |
| Model families named | Claude, OpenAI GPT, open-weight models | Claude, OpenAI GPT |
| Checked | Oct 26, 2026 | Oct 26, 2026 |
“Named on vendor page” means the phrase appears on the vendor's own page we captured; it is not a hands-on test. Unknown values are left blank rather than guessed.
FAQ
Is Kiro cheaper than OpenAI Codex?
OpenAI Codex has the lower entry price ($8/month vs $20/month for Kiro). Prices are from each vendor's pricing page.
Do Kiro and OpenAI Codex have free plans?
Both Kiro and OpenAI Codex have a free plan.
What is the difference between Kiro and OpenAI Codex?
Kiro is in AI IDEs; OpenAI Codex is in CLI coding agents, so they solve different parts of the job. Kiro is made by Amazon Web Services; OpenAI Codex is made by OpenAI. See the table for plans, editors and features each vendor names.