Claude Opus 4.5 (by Anthropic)

Overview

Anthropic's most intelligent model with advanced reasoning capabilities.

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Quick facts

• Modes: Text → Text · Image → Text · Video → Text

• Default output / size: Text responses (token-limited)

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What it's great for

• Most advanced Anthropic reasoning.

• Complex analysis and deep understanding.

• Highest-fidelity outputs for demanding tasks.

• Expert-level domain knowledge.

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Parameters

Control	Type	Default	Notes
Prompt	Text	—	Natural-language instruction (required)
Input Texts	List	—	Optional supporting documents

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Modes

Mode	Estimated time	Required inputs	Typical use
Text → Text	~28s	Prompt	Advanced reasoning & analysis
Image → Text	~28s	Images, Prompt	Deep visual analysis
Video → Text	~28s	Videos, Prompt	Comprehensive video summaries

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Prompt tips

• Best for tasks requiring maximum intelligence and nuance.

• Preload context via Input Texts for grounded reasoning.

• Ideal for strategic, analytical, and expert-level tasks.

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Safety

Moderation is enforced under Anthropic policies.

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