Claude Opus 5

Claude Opus 5

Developer	Anthropic
Release date	July 24, 2026
Family	Claude
Generation	Claude 5
Level
Context window	1M tokens
Max output	128K tokens
Input	Text, image, file
Output	Text
Knowledge cutoff	2026-05
Weights	Closed
Predecessor	Claude Opus 4.8
Successor	Claude Opus 5.5
Website	anthropic.com
Links	Docs

Part of a series on

input: $5.00
cached: $0.50
output: $25.00
cache write: $6.25
Context: 1Mtokens
Released: 3mo ago

Specifications

Model

Developer: Anthropic
Family: Claude Claude 5
Type: Language model
Released: July 24, 2026
Model ID: anthropic/claude-opus-5

Capabilities

Input → output: Text, image, file → Text
Max output: 128K tokens
Tokenizer: Claude
Knowledge cutoff: 2026-05

Weights

Openness: Closed

Sources:models.devOpenRouter

Metadata synced Nov 3, 2026, 11:17 PM UTC

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