Basis: GPT-6 Astra completed a 50-tab tax workbook twice as fast as GPT-5.6 Sol

KEY POINTS

1. Basis reports that GPT-6 Astra completed a 50-tab tax workbook twice as fast as GPT-5.6 Sol and demonstrated a stronger understanding of user intent, giving Basis more confidence for real-world use.
2. Faster completion and improved intent understanding suggest practical gains for deploying advanced models in real-world tax workflows.
3. Basis completes a tax workbook 2x faster with GPT-6 Astra