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anthropicAnthropic: Claude Sonnet 4.5
Claude Sonnet 4.5 is Anthropic’s most advanced Sonnet model to date, optimized for real-world agents and coding workflows. It delivers state-of-the-art performance on coding benchmarks such as SWE-bench Verified, with...
anthropic/claude-sonnet-4.5
Context Size
1,000K
Input Price
450,000 pts/M
Output Price
2,250,000 pts/M
Architecture
Text
Image
File
Supported Parameters
include_reasoningmax_tokensreasoningresponse_formatstopstructured_outputstemperaturetool_choicetoolstop_ktop_p
Details
TokenizerClaude
Max Completion64,000 tokens
Provider Context1,000K tokens
ModeratedYes
CreatedSep 29, 2025