# Claude Code vs GPT-5 Codex (2026): Benchmarks, Price & Verdict | Alher Tech

> Claude Code vs GPT-5 Codex: head-to-head 2026 comparison across Arena Elo, MMLU, GPQA, HumanEval, context window and pricing. Verdict + use cases.

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|  | Claude Code | GPT-5 Codex |
| --- | --- | --- |
| arenaElo | 1420 | 1395 |
| humanEval | 93.1 | 94.8 |
| sweBench | 64.3 | 68 |
| mmlu | 92.3 | 87.2 |
| gpqa | 65.2 | 58.4 |
| aime | 88 | 85 |
| Price in/out ($/M) | $15 / $75 | $8 / $32 |

## Our verdict

Claude Code is the CLI, GPT-5 Codex is the model. If you want OpenAI's coder inside an Anthropic-style CLI, combine Codex with Codex CLI. Compared directly: Claude Code has the better UX and agent stability, GPT-5 Codex has the better raw HumanEval.

[Claude Code](https://alhertech.com/en/ai-comparison/claude-code/) · [GPT-5 Codex](https://alhertech.com/en/ai-comparison/gpt-5-codex/) · [All AI model comparisons](https://alhertech.com/en/ai-comparison/)