Perplexity is preparing to introduce a research mode called "Deep Research", which is expected to go beyond the current "Research" feature. This new mode will likely include a model selector, offering access to advanced models such as Claude 4 Opus and Claude 4 Opus Thinking. The aim is to broaden the range of resources searched and provide more robust, multi-step reasoning, positioning Perplexity to compete directly with similar tools from ChatGPT and Gemini, both of which have expanded their o