claude-sonnet-4-5-20250929

Common Name: Claude Sonnet 4.5 (20250929)

Anthropic
Released on Sep 29, 2025 12:00 AMKnowledge Cutoff Jan 31, 2025 12:00 AMSupportedTool InvocationSupportedReasoning
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Snapshot of Claude Sonnet 4.5 from September 29, 2025. Most intelligent model with exceptional coding and reasoning.

Specifications

Context
200K
Maximum Output
64K
Inputtext, image, pdf
Outputtext

Performance (7-day Average)

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Availability Trend (24h)

Pricing

< 200K
Input$3.30/MTokens
Output$16.50/MTokens
Batch Input$1.65/MTokens
Batch Output$8.25/MTokens
Cache Creation$4.125/MTokens
Cached Input$0.33/MTokens
200K+
Input$6.60/MTokens
Output$24.75/MTokens
Batch Input$3.30/MTokens
Batch Output$12.375/MTokens
Cache Creation$8.25/MTokens
Cached Input$0.66/MTokens

Performance Metrics (24h)

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