Claude Opus 5.5 vs Large
30-second takeaway
- Large has the cheaper input: $2.116 vs $4 (per 1M tokens, 47% less)
- Claude Opus 5.5 has the larger context: 1M vs 128K tokens
| Claude Opus 5.5 AI/ML API | Large AI/ML API | |
|---|---|---|
| Input | $4 | $2.116 |
| Output | $20 | $6.348 |
| Context | 1M | 128K |
More specs (max output / capabilities)
| max output | 128,000 | 102,400 |
| Reasoning | ✓ Yes | — No |
| Tool calls | ✓ Yes | ✓ Yes |
| Open weights | — No | — No |
Prices are official/data-source rates (per 1M tokens), not what relays actually charge — relay prices vary with discounts and group multipliers. See methodology.