OpenAI reports that Basis, a company using its models for accounting work, finished a 50-tab tax workbook twice as fast with GPT-6 Astra as it did with the previous model, GPT-5.6 Sol. The comparison is drawn from OpenAI's own announcement about the deployment.
The speedup is attributed to GPT-6 Astra's stronger understanding of user intent, which gives Basis more confidence in real-world use. According to the source, this improved comprehension is the key factor behind the performance gain on the complex workbook task.
Because the only source is OpenAI's announcement, there is no independent verification of the results, and no competing model or alternative benchmark is discussed in the source.