Claude Sonnet 4.6 is now available in Windsurf

Cognition1 min read

Claude Sonnet 4.6 is now live in Windsurf with limited-time promotional pricing for self serve users:

  • No thinking: 2x credits
  • With thinking: 3x credits

“For the first time, Sonnet brings frontier-level reasoning in a smaller and more cost effective form factor. It provides a viable alternative if you are a heavy Opus user.” - Jeff Wang, Windsurf CEO

“Claude Sonnet 4.6 has meaningfully closed the gap with Opus on bug detection, letting us run more reviewers in parallel, catch a wider variety of bugs, and do it all without increasing cost.” - Scott Wu, Cognition CEO

Claude Sonnet 4.6 is also available in Arena Mode’s Frontier and Hybrid battle groups.

Download the latest version of Windsurf to try out Claude Sonnet 4.6!

Claude Sonnet 4.6 announcement banner