Claude Opus 5.5
cortecs / claude-opus-5.5
Input price
$4.399
per 1M tokens
Output price
$21.998
per 1M tokens
Context
1,000K
tokens
Capabilities
✓ Reasoning✓ Tool calls✓ Image input— Open weights
| cache read | $0.219 |
| cache write | $5.5 |
| Context | 1,000,000 tokens |
| max output | 128,000 tokens |
| Released | 2026-09-22 |
| Data updated | 2026-09-22 |
⚠ The two sources disagree on price
models.dev says $4.399, LiteLLM says $4. We do not average or guess — both raw values are in models.json, see for yourself.
Prices are official/data-source rates (per 1M tokens), not what relays actually charge — relay prices vary with discounts and group multipliers. See methodology.