Microsoft has introduced a significant update to its AI assistant Copilot, dubbed GPT-4 Turbo, now available to free tier users.

The GPT-4 Turbo enhancement adds a Creative or Precise mode option, providing access to a more sophisticated AI model.

This new model has been trained on data up to April 2023, featuring advanced capabilities including text-to-speech and a large context window capable of 128,000 tokens.

While the free tier gains a powerful upgrade, the Pro tier, which costs $20 per month, still offers exclusive AI-driven features within Microsoft's Office suite.

Speculation suggests the free tier upgrade to GPT-4 Turbo could indicate an upcoming release of an even newer AI model, potentially GPT-4.5 Turbo.

Neither Microsoft nor OpenAI has confirmed the existence of a GPT-4.5 Turbo model, despite ongoing industry rumors.

The move by Microsoft is part of a larger trend where tech companies are aggressively integrating generative AI into their offerings, intensifying the competition in the AI chatbot domain.