Claude Opus 4.5
Anthropic
anthropic/claude-opus-4.5Claude Opus 4.5 is a further refinement of Anthropic's Opus flagship line, with improved coding, reasoning, and long-horizon agentic capabilities over Opus 4.1. It targets the most demanding professional software engineering and analysis tasks.
Cost rate
5x
Context
200K
Released
Nov 24, 2025
Input
FileImageText
Output
Text
Support
ReasoningTool callingStructured outputs
Best at
The categories where this model ranks highest.
Document analysis
#20 · top 51%
Writing, Literature, & Language
#23 · top 6%
Entertainment, Sports, & Media
#23 · top 6%
Business, Management, & Finance
#28 · top 7%
Performance
Median latency and throughput measured across recent requests.
Throughput45 tok/s
Latency