Claude · model releaseClaude Sonnet 4.6

validasserted

Valid from: 2026-02-17
Valid until: still holds
Published: 2026-02-17
Recorded by AsOf: 2026-10-31
Checked: 2026-10-31 · its source page states the value and the date
Confidence: 0.70

Sources

“February 17, 2026 Claude Sonnet 4.6 launch We launched our most capable Sonnet model yet”— what the page says, read 2026-10-31

Claude apps release notes, February 17, 2026primary · support.claude.com · 2026-02-17

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