Tech Trend Insight

I would not replace Sol with Terra simply because the token rate is halved. I would first ask how much extra review or unfinished work that saving can absorb—and whether both models were judged on the same tasks. This comparison turns that question into a practical break-even calculation. GPT‑6.1 Terra and GPT‑6.1 Sol are the candidates; accepted invoice drafts are the buying unit. We will design a paired trial, separate request costs from task outcomes, and explain why a backup model’s overall success rate can mislead you on the first model’s failures.