GPT-5.6 API Key: One Key, Three Tiers, and Which to Put It On
The GPT-5.6 Luna API is OpenAI’s economy-tier reasoning model — released July 9, 2026 per Artificial Analysis, with a 1M-token context window — and the key that reaches it is the first real integration decision, because the same credential can also unlock the rest of the family. A key issued on OpenAI’s own platform talks … Read more