The next generation of the largest and most powerful 'frontier' AI models will be a key test for the pace of AI progress, with OpenAI's upcoming GPT-5 the most highly anticipated.
For OpenAI, the stakes are high, facing a growing assortment of rivals and with huge spend on training and running models to recoup. Staying at the cutting edge is key to justifying itself to the big tech backers on which it depends.
If OpenAI can deliver technology that matches its ambitious vision for what AI can be, it will be transformative for its own prospects, but also the economy more broadly. Falling short could be fatal.