Tell Me Lies: Grok, GPT and Claude Voice Modes Guess Bitcoin’s Price

Can artificial intelligence (AI) think as well out loud as it does in writing? A bitcoin forecasting experiment conducted by Bitcoin.com News put ChatGPT, Grok, and Claude Opus 5.5 to the test, exposing shaky predictions, questionable reasoning, and a surprising twist: Claude’s voice model proved more transparent about its limitations than its text-based counterpart. Artificial intelligence (AI) can carry on a conversation, sound like a financial analyst, and deliver a bitcoin price prediction without missing a beat. But does speaking to an AI produce the same quality of reasoning as typing a question into one? An Oct. 23, 2026, experiment put that question to the test, and the answers were anything but straightforward. ChatGPT and Grok were questioned through voice interfaces, while Claude Opus 5.5 initially worked through text.

First reported by Bitcoin.com News. This page is a short excerpt; the full text is theirs.