OpenAI’s Astra Is Here: What to Know About GPT-6

The next flagship generation of ChatGPT is here. OpenAI announced on Thursday that it’s beginning to roll out GPT-6-Astra, which the company’s president, Greg Brockman, called a “generational leap in capability” that brings the frontier fully into the “AGI era.”

According to evaluations released by OpenAI, Astra performed better than its previous family of models, GPT-5.6, and its flagship model, Sol. On computer-use tasks, it touted higher performance in less time. Like every model release, OpenAI says the new one (Astra) is better than the previous ones on a number of topics, including coding, alignment and safety.

Astra is also built to run more and better AI agents, or bots that can handle autonomous tasks. That’s a key piece for workplaces adopting AI, as well as for Astra’s improved ability to create documents, spreadsheets and presentations based on specific information on your laptop (not just random internet garbage).

To create Astra, OpenAI did “by far our largest scale training run,” Aidan Clark, vice president of research, told reporters on Thursday. The company pretrained the model on more than 100,000 GPUs, meaning it used a very significant amount of compute. Astra was also OpenAI’s first model that involved previous AI models very heavily in the training process, with the older generations helping train the new one.