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Claude Opus 5.5

claude-opus

Claude model for long-running agentic coding and knowledge work

Family
claude-opus
Providers
29
Context
1,000,000
Output
128,000
Knowledge
2026-06
Weights
Closed
Input
textimagepdf
Output
text
Release date
2026-09-22
Updated
2026-09-22

Providers

Source: models.dev