Model dossier

Anthropic: Claude Opus 4.5

Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use. It offers strong multimodal capabilities, competitive performance across real-world coding and...

Context200,000
Max output64,000
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Anthropic: Claude Opus 4.5

Model ID
anthropic/claude-opus-4.5
Canonical slug
anthropic/claude-4.5-opus-20251124
Knowledge cutoff
n/a
Created
11/24/2025
fileimagetexttoolsstructured
text+image+file->textfileimagetext
Context200,000
Max output64,000
TokenizerClaude