Claude 3.5 Sonnet
The model that made Claude the developers' favorite — and first used a computer.
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Claude 3.5 Sonnet (June 2024, upgraded October 2024) became the default coding model of its era and introduced public 'computer use' — controlling a desktop by looking at the screen. Its coding dominance seeded Cursor's and Claude Code's rise.
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Record reviewed as of 2026-01-15 — see Methodology.