AnthropicClosed Weights

Claude 4 Sonnet Thinking

anthropic/claude-sonnet-4:thinking

Best Input Price

$3.00 / 1M

Anthropic's Claude 4 Sonnet with the ability to show its thinking process step by step.

Context Window

1,000,000 tokens

Reasoning

Supported

Tool Calling

Supported

Released

2025-02-24

Inference Providers (1)

Provider	Model ID	Context	Input / 1M	Output / 1M	Action
NanoGPT	anthropic/claude-sonnet-4:thinking	1,000,000	$3.00	$15.00	Docs ↗