Claude Sonnet 4.5 (latest)
by Anthropic · claude-sonnet family · released 2025-09-29
On output pricing, Claude Sonnet 4.5 (latest) is cheaper than 86 of the 613 priced models tracked here, at $15/Mtok. Its 1,000,000-token context window is larger than 609 of 701 models. Capabilities: vision, tools, reasoning, structured output.
Specifications
| Provider | Anthropic |
| Family | claude-sonnet |
| Input price | $3/Mtok |
| Output price | $15/Mtok |
| Cache read price | $0.3/Mtok |
| Cache write price | $3.75/Mtok |
| Context window | 1,000,000 |
| Max output tokens | 64,000 |
| Input modalities | text, image, pdf |
| Output modalities | text |
| Capabilities | vision, tools, reasoning, structured output |
| Knowledge cutoff | 2025-07-31 |
| Released | 2025-09-29 |
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Data synced daily from models.dev (last synced 9 hours ago). Always verify pricing with Anthropic before deploying to production.