Anthropic · announcementIntroducing Sonnet 4.6

valid_from

2026-02-17

valid_to

null (still holds)

confidence

0.50

superseded_by

null

first seen

2026-10-27

last updated

2026-10-28

Sources

• Introducing Sonnet 4.6primary · anthropic.com

/claim/clm_DCB7F74E7C35.md/v1/claims/clm_DCB7F74E7C35timelinesubmit a correction