“GPT-5.6 Terra now costs $2 per million input tokens and $12 per million output tokens after a 20% price drop.”

By Sam Altman (@sama) · Posted 30 Jul 2026 · checked 24 Oct 2026 · 92% confidence

What they posted

major price cuts today: *80% drop for GPT-5.6 Luna, now $0.20 per million input tokens and $1.20 per million output *20% drop for GPT-5.6 Terra, to $2/$12 *GPT-5.6 Sol gets Fast mode in the API, up to 2.5x the speed for 2x the price, same intelligence https://t.co/erC6u4VoDR

Why it's Truth

OpenAI official blog and consistent reporting from 9to5Mac, VentureBeat, and pricing databases confirm the exact $2/$12 rates after the stated 20% drop on July 30, 2026.

Sources

• OpenAI
• Reuters
• Wall Street Journal
• SaaS Price Hub
• EdenAI
• 9to5Mac
• VentureBeat
• LiteLLM