Cursor
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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
Cursor· Updated
Cursor added Claude Sonnet 4.6 to its model lineup, with benchmarks showing a notable improvement over Sonnet 4.5 on longer tasks. It sits below Opus 4.6 on raw intelligence, making it the practical middle ground for extended coding sessions.
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.
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