Claude Opus 4.6 is the newer model, released after GPT-5 Nano.
| Spec | Claude Opus 4.6 | GPT-5 Nano |
|---|---|---|
| Input price | $5/M tokens | — |
| Output price | $25/M tokens | — |
| Context window | 1.0M tokens | — |
| Released | Feb 2026 | Aug 2025 |
| SWE-bench Verified | 80.8% | 54.7% |
Not enough votes to call it. On the specs, Claude Opus 4.6 has the edge: bigger model tier, newer, bigger context window.
Claude Opus 4.6 uses 519.3x more bold
Claude Opus 4.6 is the newer model, released after GPT-5 Nano.
| Spec | Claude Opus 4.6 | GPT-5 Nano |
|---|---|---|
| Input price | $5/M tokens | — |
| Output price | $25/M tokens | — |
| Context window | 1.0M tokens | — |
| Released | Feb 2026 | Aug 2025 |
| SWE-bench Verified | 80.8% | 54.7% |
Not enough votes to call it. On the specs, Claude Opus 4.6 has the edge: bigger model tier, newer, bigger context window.
Claude Opus 4.6 uses 519.3x more bold