Claude Opus 4.5 is the newer model, released after GPT-5 Pro.
| Spec | Claude Opus 4.5 | GPT-5 Pro |
|---|---|---|
| Input price | — | $15/M tokens |
| Output price | — | $120/M tokens |
| Context window | — | 400K tokens |
| Released | Nov 2025 | Oct 2025 |
| SWE-bench Verified | 80.9% | 74.9% |
Not enough votes to call it. On the specs, Claude Opus 4.5 has the edge: newer.
Claude Opus 4.5 wins Web Design and Conversation.
Claude Opus 4.5 uses 580.0x more bold
Claude Opus 4.5 is the newer model, released after GPT-5 Pro.
| Spec | Claude Opus 4.5 | GPT-5 Pro |
|---|---|---|
| Input price | — | $15/M tokens |
| Output price | — | $120/M tokens |
| Context window | — | 400K tokens |
| Released | Nov 2025 | Oct 2025 |
| SWE-bench Verified | 80.9% | 74.9% |
Not enough votes to call it. On the specs, Claude Opus 4.5 has the edge: newer.
Claude Opus 4.5 wins Web Design and Conversation.
Claude Opus 4.5 uses 580.0x more bold