OpenAI GPT-5.6 Reportedly Set for Next Month With 1.5M-Token Context
Developers found an unannounced OpenAI GPT-5.6 entry in Codex backend logs under the codename iris-alpha, with a 1.5 million-token context window, about 43% higher than GPT-5.5’s 1.05 million-token limit.
Why it matters: HKR-H/K/R all pass: the Codex-log leak, 1.5M-token window, and 43% increase are concrete and practitioner-relevant. It stays below 85 because this is not an official GPT-5.6 launch.