(Image credit: Microsoft) Microsoft is making the most powerful large language model from OpenAI available for free on its Copilot platform. GPT-4-Turbo is the most capable artificial intelligence tool currently available and was previously only accessible with a paid subscription.This is a fine-tuned version of GPT-4 with a much larger context window, able to accept tens of thousands of words within a single chat before forgetting what was said at the start.OpenAI only offers GPT-3.5 for free u...