Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...
Rank
#19
Up 7% week over week
Tokens
1.39T
2026-09-11
Requests
27.1M
27,099,356
Tool calls
-
Input / M
$2.00
Output / M
$10
Cache / M
$0.20
Context
1M
1,000,000 tokens