Claude Sonnet 4.5 is the new-generation flagship model launched by Anthropic, focusing on intelligent agent applications and programming scenarios. This model has performed excellently in multiple code benchmark tests, and has also made significant progress in aspects such as architectural design, security protection, and compliance execution.
Available Models
Claude Sonnet 4.5 Thinking
claude-sonnet-4-5-thinking
The forced thinking version of Claude Sonnet 4.5. You can use this model if you need to force the activation of thinking.
Input type
Input
$0.400 / 1M
Context
200k
Output type
Text
Output
$2.00 / 1M
Max Output
64k
Claude Sonnet 4.5
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.
