Claude Opus 4.1

Anthropic's most powerful model yet and the state-of-the-art coding model. Claude Opus 4.1 delivers sustained performance on long-running tasks that require focused effort and thousands of steps, significantly expanding what AI agents can solve.

Try in Vertex AI View model card in Model Garden

Technical specifications
Model ID	`claude-opus-4-1@20250805`
Launch stage	GA
Supported inputs & outputs	Inputs: Text, Code, Images Outputs: Text
Token limits	Maximum input tokens: 200,000 Maximum output tokens: 32,000
Capabilities	Supported Web search Preview feature Batch predictions Prompt caching Function calling Extended thinking Count tokens Not supported
Usage types	Supported Fixed quota Provisioned Throughput Not supported
	Images	Limitation and specifications: See Vision in Anthropic's documentation
	Documents	Limitation and specifications: See PDF support in Anthropic's documentation
Versions	`claude-opus-4-1@20250805` Launch stage: Generally available Release date: August 5, 2025
Supported regions
	Model availability (Includes fixed quota & Provisioned Throughput)	United States `us-east5` Global `global endpoint`
	ML processing	United States `Multi-region`
Quota limits	us-east5: QPM: 25 Context length: 200,000 global endpoint: QPM: 25 Context length: 200,000
Pricing	See Pricing.