Claude Sonnet 4.5

Anthropic

High-intelligence model excelling at complex agents, coding, and analysis tasks

Pricing

per 1M tokens

Input / 1M$3.00
Output / 1M$15.00
Cache Read / 1M$0.30
Cache Write / 1M$3.75
Cache Read$0.30
Cache Write$3.75

Specifications

API Model IDclaude-sonnet-4-5-20250514
Context Window200K tokens
Max Output64K tokens

Modalities

textimage

Capabilities

tool-usestreamingjson-modevisioncodeextended-thinking

Other Anthropic Text / Chat Models

ModelInput / 1MOutput / 1MCache Read / 1MCache Write / 1M
Claude Opus 4.6$5.00$25.00$0.50$6.25
Claude Sonnet 4.6$3.00$15.00$0.30$3.75
Claude Haiku 4.5$1.00$5.00$0.10$1.25
Claude Haiku 3.5$0.80$4.00$0.08$1.00