Claude Sonnet 4
Claude Sonnet 4 is a reasoning model created by Anthropic. It is served by Anthropic API.
Self-hostableNo
Reasoning TierExtended
Max Tokens1M in / 64K out
Training Cutoff2025-03
Release Date2025-05-14
Humanity's Last Exam49.0%
SWE-Bench Resolved76.8%
Claude Sonnet 4 Pricing
$0.00
Input: $0.00·Output: $0.00