Codex
A software engineering agent that runs tasks in parallel sandboxes and opens pull requests.
Full Codex record →Head to head
Codex vs Amazon Q Developer
Codex (OpenAI) and Amazon Q Developer (AWS) both sit in Coding. Amazon Q Developer is the cheaper entry point at Free tier available with 50 agentic chat interactions per month. Paid pricing not fully detailed on this page.. Every value below comes from the latest crawl of the vendors' own pages.
| Attribute | Codex OpenAI | Amazon Q Developer AWS |
|---|---|---|
| Segment | Coding | Coding |
| Version | Codex | Amazon Q Developer |
| Entry cost | from $20/mo | Free tier available with 50 agentic chat interactions per month. Paid pricing not fully detailed on this page. |
| Pricing tiers | Plus $20 · Pro $200 · Business $25 · API free | Amazon Q Developer Free Tier free |
| Model stack | 5.6 Sol · GPT-4 · GPT-5.2 · GPT-5.2-Codex · GPT-5.4 · GPT-5.6 · GPT-5.6 Luna · GPT-5.6 Sol · GPT-5.6 Terra · GPT-6 Astra · GPT-Live · gpt-oss | Amazon Bedrock · Amazon Bedrock / Nova / Titan · Amazon Bedrock / Nova / Titan / Claude · Amazon Bedrock / Nova foundation models · Amazon Bedrock Foundation Models · Amazon Bedrock Models · Amazon Nova · Amazon Q · Bedrock Models · Claude · Nova |
| Context window | 400K tokens | — |
| Public API | ||
| Routes models | ||
| Changes / 30d | 8 | 8 |
| Origin | Global | United States |
| Capabilities | Codex CLI, Codex IDE extension, Codex cloud, Codex Micro, Code review, Security workbench, Code generation, Codex Security | Agentic refactor, Java/.NET migration, AWS-aware context, CLI agent, inline code suggestions, agentic coding, vulnerability scanning, chat |
Amazon Q Developer
Inline completion, agentic refactors and legacy migration across AWS environments.
Full Amazon Q Developer record →