One Useful Thing – And then there were three, Ethan Mollick: “For over a year, GPT-4 was the dominant AI model, clearly much smarter than any of the other LLM systems available. That situation has changed in the last month, there are now three GPT-4 class models, all powering their own chatbots: GPT-4 (accessible through ChatGPT Plus or Microsoft’s CoPilot), Anthropic’s Claude 3 Opus, and Google’s Gemini Advanced1. There is a lot of debate over which of these models are best, with dueling tests suggesting one or another dominates, but the answer is not clear cut. All three have different personalities and strengths, depending on whether you are coding or writing. Gemini is an excellent explainer but doesn’t let you upload files, GPT-4 has features (namely Code Interpreter and GPTs) that greatly extend what it can do, and Claude is the best writer and seems capable of surprising insight. The models all have different guardrails and biases, though those are always changing as the AI labs fine-tune their models further. But beyond the differences, there are four important similarities to know about…”