> For the complete documentation index, see [llms.txt](https://docs.flora.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.flora.ai/models/text-models/claude-opus-4.5-by-anthropic.md).

# 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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