GPT-5.6 Luna Free: The Real $0 Paths (and the $0.20 That Ate the Market)
GPT-5.6 Luna API is OpenAI’s economy-tier reasoning model, released July 9, 2026, per Artificial Analysis, and “free” for it means one of two things: trial credits and playground access that are genuinely $0 but rate-limited and non-perpetual, or the post-cut API price of $0.20 input / $1.20 output per million tokens — an 80% cut … Read more