Claude Sonnet 4.5 (Thinking)
Release Date: 9/29/2025
Benchmarked by
Claude Sonnet 4.5 is Anthropic's best model for complex agents and coding, supporting 200K context (1M tokens beta), with state-of-the-art reasoning, intelligence, and tool integration. It excels in autonomous agent workflows and computer use.
Avg. Accuracy
74.3%
Latency
170.6s
Cost (In/Out)
3.00 / 15.00
Context Window
1000k
Max Output Tokens
64k
Input Modality
Benchmarks
Accuracy
Rankings
Academic Benchmarks
Proprietary Benchmarks (contact us to get access)