How to connect Anthropic’s AI models to ONLYOFFICE and use them for document editing

Since the updated AI plugin for ONLYOFFICE came out, we have published several articles in our blog telling you how to connect various AI providers and models to our editors, such as Mistral, Together AI, Ollama, DeepSeek and more. In this article, you will learn how to connect and use the Claude chatbot, a family of large language models created by Anthropic.

About Anthropic and Claude

Anthropic is a US-based AI safety and research company that has been developing artificial intelligence technology since 2021. Driven by the idea of responsible usage of generative AI, the company strives to deploy safe and reliable AI models for public use.

Anthropic’s flagship product is Claude, a family of large language models (LLMs) that combine speed and performance. The Claude chatbot can perform complex cognitive tasks and provides excellent vision analysis capabilities, allowing you to transcribe and analyze images, from handwritten notes to photos.

Claude 3.7 Sonnet is Anthropics’s most intelligent model and the first hybrid reasoning model. Its strengths include step-by-step solutions to complex problems, information analysis, creative thinking and generation of original content, which makes it an ideal AI assistant for office suites, like ONLYOFFICE Docs.

How to connect Anthropic’s AI models to ONLYOFFICE

Let’s find out how to connect Anthropic’s AI models to the ONLYOFFICE editors and use their capabilities for effortless document editing.

Step 1. Install the AI plugin in ONLYOFFICE

To use the Clade chatbot and other models developed by Anthropic, you need to install and activate the AI plugin in ONLYOFFICE. To do so, open your document, switch to the Plugins tab on the top toolbar and launch the Plugin Manager. You will instantly see the AI plugin. Click the Install button and wait for a few seconds till the plugin gets installed.

Step 2. Activate the AI tab

Upon successful installation, close the Plugin Manager and click the Background plugins button on the same tab. To enable AI features in ONLYOFFICE, turn on the corresponding slider. After activating the AI plugin, you will see a new tab after the Plugins tab — AI.

Step 3. Connect Anthropic and configure the AI plugin

To connect Anthropic’s AI models to ONLYOFFICE, switch to the newly appeared AI tab and click Settings to access the AI configuration menu.

In this menu, select Edit AI models and click the + button.

Open the list of available AI providers and choose Anthropic. You will also see some other options, like Open AI, Together AI, Mistral, Groq, DeepSeek, etc., that are compatible with the ONLYOFFICE editors too.

In the Edit AI Model window, you need to input your API key* and select one of Anthropic’s models from the drop-down list. If you see no models, click the Update models list button.

*Note: ONLYOFFICE doesn’t provide any API keys, and you should get them from the corresponding AI provider. For more information about API keys, their pricing and how you can get them, visit Anthropic’s official website.

Let’s try the flagship model, Claude 3.7 Sonnet, and opt for it. Once the required model is chosen and all parameters are configured, click OK.

Now you can see the list of all AI models in the AI models list. Using the buttons on the right, you are allowed to add new models, edit the existing ones and even delete them if necessary.

Step 4. Assign AI tasks

Now that the AI model is connected, you need to decide what this model will be used for. Since the ONLYOFFICE plugin supports several models simultaneously, you are allowed to assign various tasks.

In the AI models list window, click Back to access the AI configuration menu, and select the installed model in the drop-down lists associated with the following tasks:

• Ask AI;
• Summarization;
• Translation;
• Text Analysis.

When you assign a model for one of the tasks above, it will be used de default. For example, if Claude 3.7 Sonnet is chosen for the Ask AI option, you will interact with this model when sending your prompts in a separate window.

This way, the ONLYOFFICE plugin gives you total control over your AI assistant. You can add one chatbot and use it for everything, from translation to text generation. Alternatively, are free to add several chatbots by various providers and try various combinations to increase your productivity. It’s up to you to decide how artificial intelligence will assist you.

When you finish the configuration process, close the window. Now you are ready to put the Claude chatbot to the test.

How to use Anthropic’s AI models in ONLYOFFICE

Using Anthropic’s AI models, Claude 3.7 Sonnet in particular, you can do a lot of things. The chatbot can assist you in the following tasks:

Writing

• Essays, articles and blog posts;
• Creative writing (stories, poems, dialogues);
• Professional documents (letters, emails, reports);
• Educational content and explanations;
• Marketing copy and product descriptions.

Data analysis

• Text summaries of numerical data;
• Explanations of trends and patterns;
• Step-by-step problem solving;
• Comparative analyses.

Programming

• Code snippets and examples in many languages;
• Explanations of programming concepts;
• Debugging help and code reviews;
• Simple algorithms and functions.

Planning

• Outlines and frameworks;
• Schedules and timelines;
• Project plans and workflows;
• Checklists and templates.

Language services

• Translations (explanations, not certified);
• Grammar and style improvements;
• Paraphrasing and summarizing;
• Vocabulary explanations.

Of course, this is not a definitive list since Anthropic’s AI models offer more useful features. You can explore them via the AI tab or by right-clicking on the selected text in your document.

Get started with Anthropic’s AI models in ONLYOFFICE

Get a powerful combination of the ONLYOFFICE suite and AI tools made by Anthropic by downloading the free desktop client for Windows, macOS, or Linux, or create a free ONLYOFFICE DocSpace account:

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Watch our free webinar about the AI assistant in the ONLYOFFICE editors and how to use it: