Claude Sonnet 3.5 (new/v2)
Anthropic · Multimodal model · Registered 2024-10-22
IDENTITY
Confirmed by
Confirmed first-party from Anthropic's model deprecations (platform.claude.com/docs/en/about-claude/model-deprecations) and release notes, 27 June 2026.
First registered
2024-10-22 (official_announcement)
Developer confirmed
2026-06-27
PROVENANCE
Claimed developer
Anthropic
Confirmed developer
Anthropic
Delta
613 days · match confirmed