ModelsClaude Sonnet 4.5

Claude Sonnet 4.5

by Anthropic

Mid-tier

Strong performance at better value

Pricing
Input
$3.00
per 1M tokens
Output
$15.00
per 1M tokens
Cached
$0.30
per 1M tokens
Note: Released Sep 2025. Anthropic's best coding model
Context & Output
Context Window1M tokens
Max Output8K tokens
Latency
Fast
Capabilities
Multimodal
Streaming
Function Calling
Prompt Caching
Key Strengths
What makes this model stand out
Best coding/agents
72.7% SWE-bench
90% cache savings
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