claude-sonnet-4-5-20250929

Claude Sonnet 4.5's date-fixed model identification is suitable for general production scenarios that require higher quality while focusing on response efficiency and cost. It can be used for complex Q&A, long document analysis, programming assistance, tool invocation, knowledge base Q&A, content generation and multi-step business processes. This version is context-aware, enabling better management of residual context in longer sessions or agent processes. Since the date suffix represents a fixed version, it is suitable for teams that require stable regression testing and repeatable output behavior; its life cycle should still be evaluated when selecting, and space should be reserved for subsequent migrations.

Context

1000000 tokens

Max output

128000 tokens

Input

llm image

Output

llm