Claude Code vs OpenAI Codex
Claude Code vs OpenAI Codex (Coding Agents (CLI & Cloud)). Agent test scores: Claude Code not yet tested, OpenAI Codex not yet tested. No head-to-head verdict yet because Claude Code and OpenAI Codex have not been tested. Pricing: Claude Code — Included in Claude Pro $20/mo ($17/mo annual, $200 upfront); Max from $100/mo (5x or 20x); or API pay-as-you-go; OpenAI Codex — Included in ChatGPT Free, Go, Plus, Pro ($100 and $200 tiers), Business ($20 and $100 tiers), Enterprise. Plus price not shown on page (search excerpt: $20/mo).
Every fact on this page comes from our tool records and test logs. Last updated:
Side by side
| Claude Code | OpenAI Codex | |
|---|---|---|
| What it is | Anthropic's agentic coding tool for the terminal. | OpenAI's coding agent for CLI, IDE and cloud. |
| Pricing | Included in Claude Pro $20/mo ($17/mo annual, $200 upfront); Max from $100/mo (5x or 20x); or API pay-as-you-go | Included in ChatGPT Free, Go, Plus, Pro ($100 and $200 tiers), Business ($20 and $100 tiers), Enterprise. Plus price not shown on page (search excerpt: $20/mo) |
| Free tier | No (not included in Claude Free) | Yes: limited Codex on ChatGPT Free and Go |
| Pricing verified | 2026-10-16 | 2026-10-16 |
| Edition tested | — | — |
| Tested on | — | — |
| Outcome score | Not yet tested | Not yet tested |
| Speed score | Not yet tested | Not yet tested |
| Cost score | Not yet tested | Not yet tested |
| Developer experience score | Not yet tested | Not yet tested |
| Reliability score | Not yet tested | Not yet tested |
| Overall score | Not yet tested | Not yet tested |
What our tests found
Claude Code
Not yet tested. It is queued for our standard tasks.
OpenAI Codex
Not yet tested. It is queued for our standard tasks.
Verdict
Pending: we only publish a verdict once both tools have been tested.
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