Claude Sonnet 4.5

Latest Claude Sonnet with improved reasoning and extended thinking.

openrouter/claude-sonnet-4-5
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Streaming
Vision
Tools
Reasoning
JSON Output
Structured JSON
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OpenRouter Pricing for Claude Sonnet 4.5

View detailed pricing and capabilities for this provider.

Context: 1M
Input
$3
/M tokens
Cache Read
$0.3
/M tokens
Output
$15
/M tokens
Cache Write 5m
$3.75
/M tokens
Cache Write 1h
$6
/M tokens
Tiered Pricing
IN
CACHED
OUT
≤200K tokens
$3
$0.3
$15
>200K tokens
$6
$0.6
$22.5
+ $0.010 per search
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