# Claude Code vs Codex CLI (2026): Benchmarks, Price & Verdict | Alher Tech

> Claude Code vs Codex CLI: head-to-head 2026 comparison across Arena Elo, MMLU, GPQA, HumanEval, context window and pricing. Verdict + use cases.

- Canonical page: https://alhertech.com/en/ai-comparison/claude-code-vs-codex-cli/
- Site: Alher Tech (custom software, AI agents and SEO engineering, https://alhertech.com/)
- Contact: https://alhertech.com/en/contact/

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|  | Claude Code | Codex CLI |
| --- | --- | --- |
| arenaElo | 1420 | 1408 |
| humanEval | 93.1 | 95.5 |
| sweBench | 64.3 | 70 |
| mmlu | 92.3 | 88.6 |
| gpqa | 65.2 | 60.8 |
| aime | 88 | 86 |
| Price in/out ($/M) | $15 / $75 | $9 / $36 |

## Our verdict

Claude Code rides on Opus 4.7: stronger long-horizon agents, 1M context, best-in-class MCP ecosystem. Codex CLI rides on GPT-5.4 Codex: highest HumanEval, tight OpenAI tool-calling, faster loops. Pick Claude Code for multi-hour refactors; pick Codex CLI for fast PR factories.

[Claude Code](https://alhertech.com/en/ai-comparison/claude-code/) · [Codex CLI](https://alhertech.com/en/ai-comparison/codex-cli/) · [All AI model comparisons](https://alhertech.com/en/ai-comparison/)