Claude Opus 4.6 — EchtRaaW Passport

// PASSPORT

Claude Opus 4.6

Anthropic · Multimodal model · Registered 2026-04-19

IDENTITY

Developer

Anthropic

Confirmed by

Confirmed via https://www.anthropic.com/news/claude-opus-4-6

First registered

2026-04-19 (reddit_claudeai)

Developer confirmed

2026-02-05

Gate

PROVENANCE COMPLETE

Status

Available

PROVENANCE

Claimed developer

Anthropic

Confirmed developer

Anthropic

Delta

— · match confirmed

EU COMPLIANCE

AI Act

GPAI ⓘ

PASSPORT FIELDS

Model type

Multimodal

Parameters

Undisclosed

Context window

1,000,000 tokens (200K default; 1M token window in beta via API header)

Open source

Weights available

License

Anthropic Commercial Terms of Service (proprietary)

Supersedes

Claude Opus 4.5 Part of lineage

PROVENANCE TIMELINE

2026-04-19

First recorded in AI news