| Claude Code | GPT-5.5 | |
|---|---|---|
| arenaElo | 1420 | 1432 |
| humanEval | 93.1 | 94.2 |
| sweBench | 64.3 | 66 |
| mmlu | 92.3 | 93 |
| gpqa | 65.2 | 68.7 |
| aime | 88 | 92 |
| Price in/out ($/M) | $15 / $75 | $12 / $48 |
GPT-5.5 is the model you embed inside your SaaS features. Claude Code is the agent that writes the SaaS itself. They are complementary: use Claude Code during the build phase to ship production code, then wire GPT-5.5 into the runtime for end-user multimodal experiences.