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Timeline / Milestones

Anthropic releases Claude Opus 4.5

Model releaseAnthropic24 Nov 2025

Anthropic released Claude Opus 4.5, aimed at coding, agents and computer use, at a lower price than earlier Opus models.

Sources: Anthropic

Releases around this date

029 Sept2113 Oct2327 Oct3210 Nov1424 Nov108 Dec0622 Dec225 Jan2519 Jan

Releases per week across every project listed on recomp.party; the dashed line is 24 Nov 2025. A date on the timeline is context, not a cause. Faded weeks are still filling in: new projects are usually listed one to three weeks after they appear.