Send a prompt to Claude (Anthropic). Optionally attach a local file — code, text, image, or PDF — for Claude to read and include in its analysis. Use this when you want Claude's perspective on a question, piece of code, document, or design.

Send a prompt to OpenAI (GPT-4o by default). Optionally attach a local file. Use this when you want a second opinion on code, an alternative implementation, or OpenAI's perspective on an architecture or design decision.

Send a research question to Perplexity for a web-grounded answer with citations. Text and code files can be attached. Images and PDFs cannot (Perplexity has no vision API). Use this for current information, documentation lookups, or questions that benefit from live web search.

Send a prompt to multiple AIs in parallel and receive a synthesized comparison. Attach a file to have all selected AIs analyse the same document, image, or code. Perplexity only receives text/code files; images and PDFs are forwarded to Claude and OpenAI only. When synthesize is true (the default), Claude produces a final summary identifying agreements, differences, and a recommended course of action.