Expired65% confidenceFactExact time

"GPT-5.6 Sol Ultra" does not conform to any of OpenAI's official naming conventions.

3

Sources

65%

Confidence

Medium-term (~90 days)

Relevance

7/11/2026

First Seen

Valid until: 10/9/2026(expired)

Sources

Can AI Prove Mathematical Conjectures? The Truth Behind the GPT-5.6 Incident and the Limits of Large Language Models

hackernewshackernews7/10/2026

Related Claims

VerifiedOpenAI has never released a model named "GPT-5.6," and the codenames "sol luna terra" have no official sources to substantiate them.79% similar VerifiedAs of the article's publication, no official OpenAI channel had confirmed the existence of a product named 'GPT-6 Astra'.76% similar

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