Claude Opus 5.5
by Anthropic · claude-opus family · released 2026-09-22
On output pricing, Claude Opus 5.5 is cheaper than 70 of the 721 priced models tracked here, at $20/Mtok. Its 1,000,000-token context window is larger than 684 of 838 models. Capabilities: vision, tools, reasoning, structured output.
Specifications
| Provider | Anthropic |
| Family | claude-opus |
| Input price | $4/Mtok |
| Output price | $20/Mtok |
| Cache read price | $0.2/Mtok |
| Cache write price | $5/Mtok |
| Context window | 1,000,000 |
| Max output tokens | 128,000 |
| Input modalities | text, image, pdf |
| Output modalities | text |
| Capabilities | vision, tools, reasoning, structured output |
| Knowledge cutoff | 2026-06-01 |
| Released | 2026-09-22 |
Similar models
Related reading
Data synced daily from models.dev (last synced 9 hours ago). Always verify pricing with Anthropic before deploying to production.