Claude Opus 4.5 is the newer model, released after GPT-5.
| Spec | Claude Opus 4.5 | GPT-5 |
|---|---|---|
| Input price | — | $1.25/M tokens |
| Output price | — | $10/M tokens |
| Context window | — | 400K tokens |
| Released | Nov 2025 | Aug 2025 |
| SWE-bench Verified | 80.9% | 74.9% |
Not enough votes to call it. On the specs, nothing separates them.
Claude Opus 4.5 uses 18.5x more emoji
Claude Opus 4.5 is the newer model, released after GPT-5.
| Spec | Claude Opus 4.5 | GPT-5 |
|---|---|---|
| Input price | — | $1.25/M tokens |
| Output price | — | $10/M tokens |
| Context window | — | 400K tokens |
| Released | Nov 2025 | Aug 2025 |
| SWE-bench Verified | 80.9% | 74.9% |
Not enough votes to call it. On the specs, nothing separates them.
Claude Opus 4.5 uses 18.5x more emoji