Some evidence suggests that Anthropic is using Brave to drive web searches for its AI-powered chatbot, Claude.

Anthropic released Claude 3.7 Sonnet. As the industry's first hybrid reasoning model, it was a major milestone for the company. Rather than forcing users to pick between a version of Claude that can answer a question nearly instantaneously or work through a problem step by step,

What sets Anthropic’s web search feature apart is that it is automatic. Rather than requiring users to manually select a web search on a given query (as with OpenAI’s ChatGPT), Claude decides on its own whether fetching web data would improve an answer.