# Anthropic: Claude Sonnet 4.6

`anthropic/claude-sonnet-4.6` — **openrouter** · CHAT

> Anthropic: Claude Sonnet 4.6 (anthropic/claude-sonnet-4.6) is a chat model from openrouter with a 1M-token context window; proprietary (API-only); capabilities tools, vision, reasoning; input image, pdf, text; output text.

| Field | Value |
| --- | --- |
| Vendor | openrouter |
| Kind | CHAT |
| Context window | 1,000,000 tokens |
| Max output tokens | 128,000 tokens |
| Indicative price (US list) | $3 in / $15 out per 1M tokens (indicative US list — verify with vendor) |
| Input modalities | image, pdf, text |
| Output modalities | text |
| Capabilities | tools, vision, reasoning |
| Weights | Proprietary (API-only) |
| Knowledge cutoff | 2025-08-31 |
| Release date | 2026-02-17 |
| Sources | committed, models-dev, openrouter-api |
| Last verified | 2026-11-05 |

*Part of the [Model Catalog](https://models.viglet.org/) — [openrouter models](https://models.viglet.org/models/openrouter/) · [Vendor JSON](https://models.viglet.org/by-vendor/openrouter.json) · [HTML](https://models.viglet.org/models/openrouter/anthropic-claude-sonnet-4.6.html)*