// PASSPORT
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Claude Sonnet 4.6
Anthropic · Multimodal model · Registered 2026-02-05
IDENTITY
Developer
Anthropic
Confirmed by
Official Anthropic announcement
First registered
2026-02-05 (official announcement)
Developer confirmed
2026-02-05
Gate
PROVENANCE COMPLETE
Status
Available
PROVENANCE
Claimed developer
Anthropic
Confirmed developer
Anthropic
Delta
0 days · match confirmed
EU COMPLIANCE
AI Act
registered — Anthropic signed full EU Code of Practice
GDPR notes
GDPR compliant
PASSPORT FIELDS
Model type
Multimodal
Parameters
undisclosed
Context window
200k tokens
Open source
No
Weights available
No
License
—
Model family
Claude
Parent model
claude-3-5-sonnet Part of lineage
Supersedes
Claude Sonnet 4.5 Part of lineage
PROVENANCE TIMELINE
2026-02-05
Claude Sonnet 4.6 released alongside Claude Opus 4.6
Source: Anthropic official · https://www.anthropic.com/news
2023-04-01
First recorded in AI news