Claude Sonnet 4.6
language modelAnthropic
Sonnet 4.6 is Anthropic's most capable Sonnet-class model yet, with frontier performance across coding, agents, and professional work. It excels at iterative development, complex codebase navigation, end-to-end project management with...
Key facts
| Made by | Anthropic |
|---|---|
| Type | language model |
| Released | February 17, 2026 |
| Reads at once | 1,000,000 tokens |
| Price (API, per million tokens) | $3 in · $15 out |
| Input → output | text, image, file → text |
Questions about Claude Sonnet 4.6
Who makes Claude Sonnet 4.6?
Claude Sonnet 4.6 is made by Anthropic.
When was Claude Sonnet 4.6 released?
We first saw Claude Sonnet 4.6 listed on February 17, 2026.
How much does Claude Sonnet 4.6 cost?
Through OpenRouter it costs $3 per million input tokens and $15 per million output tokens. Prices change, so check the provider before you build on it.
How much text can Claude Sonnet 4.6 read at once?
Up to 1,000,000 tokens, roughly 750K words.
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