OpenAI has announced an upgrade to its ChatGPT model, named GPT-4o, which enhances its creative writing capabilities to be more natural and engaging.

This upgrade significantly improves the model's ability to produce tailored writing, enhancing its relevance and readability.

Users have responded positively to the update, noting substantial improvements in creative writing, with one user even likening its rap lyric creation skills to those of Eminem.

For those needing a lighter option, OpenAI has introduced GPT-4o-mini, which uses the same training data as GPT-4o but is more efficient for smaller tasks like code generation.

While GPT-4o is available to all OpenAI subscribers, free-tier users have limited access, being switched to the smaller GPT-4o-mini model after a few uses.

The model's rapid response capabilities make it ideal for real-time translation and conversation applications, including a new Advanced Voice Mode for desktops.

Additionally, ChatGPT-4o shows improved performance in handling uploaded files, providing deeper insights and more thorough responses, especially with spreadsheets and images.

In benchmarks, GPT-4o-mini has outperformed competitors like Google's Gemini 1.5 Flash and Meta's Llama 3 8b, scoring 82% on the MMLU reasoning benchmark.

Released in May 2024, GPT-4o delivers double the performance at half the resource cost compared to its predecessor, GPT-4-Turbo, excelling in voice, multilingual, and vision tasks.

As anticipation builds for GPT-5, speculation suggests its release could occur in late 2024, following the rapid updates and success of GPT-4 and its derivatives.

In addition to the model upgrades, OpenAI has also introduced a searchable chat history feature for the ChatGPT web app, enhancing user experience by allowing easy access to previous conversations.