Claude Sonnet 4.6

anthropic/claude-sonnet-4.6

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 memory, polished document creation, and confident computer use for web QA and workflow automation.

Input price
$3.00USD / 1M tokens
Output price
$15.00USD / 1M tokens
Cache read
$0.30USD / 1M tokens
Cache write
$3.75USD / 1M tokens
Context window
1M
Max output
128K

Specifications

CapabilitiesChatVisionReasoningStructured outputFunction calling
Input
Text, image
Output
Text
Available

Questions

FAQ

How do I call Anthropic Claude Sonnet 4.6 through SandBase?

Create a SandBase API key, then send requests with the model ID "anthropic/claude-sonnet-4.6" to Chat Completions API (/v1/chat/completions) or Messages API (/v1/messages) at https://api.sandbase.ai. The request examples on this page show the exact payload.

How much does Anthropic Claude Sonnet 4.6 cost?

$3 per 1M input tokens and $15 per 1M output tokens, billed per request from your SandBase balance. Discounts, when available, are shown in the pricing on this page.

What is the context window of Anthropic Claude Sonnet 4.6?

1M tokens of context, with up to 128K output tokens per response.

Which features does Anthropic Claude Sonnet 4.6 support?

Anthropic Claude Sonnet 4.6 supports vision (image input), reasoning, function calling, structured output. See Specifications above for the full list.

Do I need a separate Anthropic account?

No. One SandBase API key and balance gives you access to Anthropic Claude Sonnet 4.6 and the other models in the catalog; you do not need to sign up with Anthropic separately.