Side-by-side comparison of pricing, ..., and generation speed.
| Metric | Claude Opus 4.6 | GPT-5.4 |
|---|---|---|
| Input ($/M tokens) | $5 | $2.5 |
| Output ($/M tokens) | $25 | $15 |
| Cached Input ($/M) | $0.5 | $0.25 |
| Context Window | 1000K | 1050K |
Data from Artificial Analysis API — 12 benchmarks
| Feature | Claude Opus 4.6 | GPT-5.4 |
|---|---|---|
| vision | ✅ | ✅ |
| Function Calling | ✅ | ✅ |
| streaming | ✅ | ✅ |
| JSON Mode | — | ✅ |