Claude 4

Model Family

Claude 4 generation within Anthropic's Claude model family.

Models in this family

Model	Family	Released	Modality	Context	Open source	API	Status
Claude Opus 4.8	Claude 4	May 28, 2026	textimage	—	—	—	active
Claude Opus 4.7	Claude 4	Apr 16, 2026	textimage	—	—	—	legacy
Claude Sonnet 4.6	Claude 4	Feb 17, 2026	textimage	—	—	—	legacy
Claude Opus 4.6	Claude 4	Feb 5, 2026	textimage	—	—	—	legacy
Claude Opus 4.5	Claude 4	Nov 24, 2025	textimage	—	—	—	legacy
Claude Haiku 4.5	Claude 4	Oct 15, 2025	textimage	—	—	—	active
Claude Sonnet 4.5	Claude 4	Sep 29, 2025	textimage	—	—	—	legacy
Claude Opus 4.1	Claude 4	Aug 5, 2025	textimage	—	—	—	legacy
Claude Opus 4	Claude 4	May 22, 2025	textimage	—	—	—	legacy
Claude Sonnet 4	Claude 4	May 22, 2025	textimage	—	—	—	legacy

May 22, 2025Claude 4 model family releasedClaude 4Model release

Anthropic released Claude Opus 4 and Claude Sonnet 4 for coding, advanced reasoning, and agent workflows.