| Codex CLI | Claude Opus 4.7 | |
|---|---|---|
| arenaElo | 1408 | 1420 |
| humanEval | 95.5 | 93.1 |
| sweBench | 70 | 64.3 |
| mmlu | 88.6 | 92.3 |
| gpqa | 60.8 | 65.2 |
| aime | 86 | 88 |
| Price in/out ($/M) | $9 / $36 | $15 / $75 |
Codex CLI delivers an integrated terminal experience on GPT-5.4 Codex; raw Opus 4.7 gives you API access to plug into any harness you want. Use Codex CLI to ship fast; use Opus 4.7 API when you need custom orchestration.