How Much Does GPT-6.1 Terra Cost? Official Pricing and API Billing Explained: 4 Billing Categories + 3 Cost Calculation Examples
Author’s note: This article breaks down GPT-6.1 Terra’s pricing, its long-context tiers, and potential cache savings using official prices and three worked examples. GPT-6.1 Terra launched on October 26, 2026, with a focus on speed and affordability. Many people look at the pricing page and remember only “$1 for input,” then wonder why their bill…
