Rumor says GPT-5.6.1 is incoming as OpenAI tests Zinc and Magnesium
brandon_galang · x · 2026-07-29
A post on X claims that GPT-5.6.1 is incoming, citing a separate rumor that new OpenAI model variants called Zinc and Magnesium appeared in DesignArena.
The cited rumor says those names are likely updates to GPT-5.6 Sol and GPT-5.6 Terra, both currently disabled, and suggests they could arrive this week or next as OpenAI’s response to Claude Opus 5. This remains unconfirmed.
Related event: OpenAI Spotted Testing New Model Codenames Zinc and Magnesium(2 posts)→
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