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Claude Opus 4.5

Model facts

Provider: Anthropic
Released: 2025-11-24
Retirement: 2026-11-24

Technical details

Model ID: claude-opus-4-5
Status: Active
Context window: 200,000 tokens
Max output: 64,000 tokens
Knowledge cutoff: 2025-03-31
Input modalities: Text, Image, PDF
Output modalities: Text
Pricing (per 1M tokens): $5 in / $25 out
Tool use: Yes

Links

models.dev entry

Claude Opus chronology

Preceded by

Claude Opus 4.1

Succeeded by

Claude Opus 4.6

Claude chronology

Preceded by

Claude Haiku 4.5

Succeeded by

Claude Opus 4.6

A large language model by Anthropic.