// PASSPORT
← Back to register
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