Anthropic Claude claude-3-opus-20240229

end of lifeno security fixes since 2026-01-05

Anthropic Claude claude-3-opus-20240229 reached end of life 9 months ago.

Supported now: Anthropic Claude claude-sonnet-4-5-20250929 (until 2026-11-30)

Facts

Released
(2 years ago)
Active support ended
(15 months ago)
Security support ended
(9 months ago)
Source
endoflife.date (checked 2026-09-09)

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