Claude-opusClosed Weights

Anthropic: Claude Opus 4.5

claude-4.5-opus

Best Input Price

$5.00 / 1M

Flagship Claude model for deep reasoning, coding, and long-horizon agents

Context Window

200,000 tokens

Reasoning

Supported

Tool Calling

Supported

Released

2025-11-24

Inference Providers (1)

Provider	Model ID	Context	Input / 1M	Output / 1M	Action
Helicone	claude-4.5-opus	200,000	$5.00	$25.00	Docs ↗