https://tokencost.app/blog/llm-fast-mode-latency-pricing TokenCost en 2026-08-01T00:00:00.000Z OpenAI and Anthropic both charge exactly double for speed. One of them tells you how much speed you get, and no benchmark on earth is allowed to check either claim. https://tokencost.app/blog/gpt-5-6-luna-price-cut TokenCost en 2026-07-31T00:00:00.000Z OpenAI cut GPT-5.6 Luna by 80% and left Sol untouched. That is a 25x spread inside one model family, and it shrinks to 18x the moment you measure real work.