Anthropic’s latest version of its most powerful generative AI model could shake up the way you manage your spreadsheets. The company declared Claude Opus 4.5, announced Monday, is aimed at tasks you do at work, like coding and office work.
Google revealed its powerful new Gemini 3 model last week, and OpenAI released GPT-5.1 the previous week. Now it’s Anthropic’s turn. The company, popular with businesses and software developers, said Opus 4.5 focuses on getting work done, not generating content.
Claude Opus 4.5 will be available everywhere and will be a default model for Pro (from $17/month), Max (from $100/month) and Enterprise users.
Opus 4.5 is designed to produce documents, spreadsheets and presentations and can automate menial office tasks using your computer and browser. This includes its deployment to Claude for Chromiuma browser extension that allows Claude to perform Internet tasks for Max users.
This version places the three Claude models in generation 4.5. Anthropic released Sonnet 4.5its intermediate model, in September and Haiku 4.5its smallest model, in October.
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Advance reasoning models like Opus are designed to handle complex and demanding tasks. While a smaller, cheaper large language model will provide an answer based on the probabilities of its training data, a reasoning model will rerun and refine its operations to get a better or more complete answer. It takes more time, but it means the AI ​​can handle more difficult operations.
Reasoning models are particularly useful for complex programming projects or intensive research. The downside is that they are slower and more expensive to operate, so companies often limit them to paid plans or impose strict limits on usage.
