Cursor
@cursor_ai
Sonnet 4.6 is now available in Cursor. Our benchmarks show it as a notable improvement over Sonnet 4.5 on longer tasks, but below Opus 4.6 for intelligence.
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View on XCursor Adds Claude Sonnet 4.6 with Better Long-Task Benchmark Performance
· Updated
Cursor added Claude Sonnet 4.6 to its model lineup. Anthropic released Sonnet 4.6 on February 17, 2026, as a full upgrade across coding, computer use, long-reasoning, and agent planning. Cursor's benchmarks position it as a meaningful step up from Sonnet 4.5 specifically on longer tasks - the kind of multi-file, extended refactoring sessions where Cursor is most used.
Sonnet 4.6 outperforms Sonnet 4.5 on sustained work, but Opus 4.6 still leads on intelligence-heavy tasks. For Cursor users, that's a clear decision tree: Sonnet 4.6 for long coding runs, Opus 4.6 when reasoning depth matters more than cost.
Switch to Sonnet 4.6 in Cursor's model picker - it's available now.
