// PASSPORT
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Claude Mythos 5
Anthropic · Multimodal model · Registered 2026-06-09
IDENTITY
Developer
Anthropic
Confirmed by
Confirmed via https://www.anthropic.com/news/claude-fable-5-mythos-5 (9 Jun 2026 joint launch with Fable 5; the announcement names both).
First registered
2026-06-09 (anthropic_official)
Developer confirmed
2026-06-09
Gate
PROVENANCE COMPLETE
Status
Available · limited release
PROVENANCE
Claimed developer
Anthropic
Confirmed developer
Anthropic
Delta
0 days · match confirmed
EU COMPLIANCE
AI Act
GPAI
PASSPORT FIELDS
Model type
Multimodal
Parameters
Undisclosed
Context window
Unknown
Open source
No
Weights available
No
License
Model family
Claude
Supersedes
Claude Mythos Preview Part of lineage
PROVENANCE TIMELINE
2026-06-27
RESTORED (LIMITED)
2026-06-12
SUSPENDED — US government export-control directive
2026-06-09
Supersedes Claude Mythos Preview for Glasswing partners