OpenAI Silent on GPT-5.6 With June Deadline Approaching

OpenAI has not announced or released a model called GPT-5.6 as of June 13, according to the company's official release notes. The release notes, current through June 13, show no mention of GPT-5.6, which has been the subject of speculation regarding a possible launch by the end of the month.

The company's most recent major release was GPT-5.5 on April 23, followed by the GPT-5.5 Instant update that became the default ChatGPT model on May 5. GPT-5.5 and GPT-5.5 Pro have been available through the API since April 24.

OpenAI's official release notes show continued updates to the GPT-5.5 family, including the retirement of GPT-5.2 models from ChatGPT as of June 12. No official system card, developer blog post, or API changelog referencing GPT-5.6 has been published.

The absence of an announcement leaves the status of GPT-5.6 unclear. No confirmed release date or public access plan has been disclosed, and no authoritative source has reported backend evidence of the model.

The next step would be an official OpenAI announcement, system card, or API update confirming the model's existence and release schedule. Without that, the question of whether GPT-5.6 arrives by the end of June remains unresolved.