I wonder if it's the same model and they just keep adding more post-training. | Hacker News

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		wmf 38 days ago \| parent \| context \| favorite \| on: GPT-5.5 I wonder if it's the same model and they just keep adding more post-training.

Squarex 38 days ago [–]

The rumor was that the 5.5 is a brand new pretrain. But who knows, it's 2x as expensive as 5.4, so it would check out.

hyperbovine 37 days ago | [–]

If so that would be big, they haven’t been able to successfully pretrain in close to two years (since 4o).

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