3h ago

OpenAI's unreleased internal general-purpose model won gold at last year's International Mathematical Olympiad but remains publicly unidentified with no name or details released

Opacity also surrounds models used in Figure 01 demos.

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Original post
OPEthan Mollick#175Ethan Mollick@EMOLLICK

Did we ever learn what model won gold at the IMO from OpenAI? It was a year ago and it was called an unreleased internal general purpose model back then. Has GPT-5.5 Pro Extended caught up with whatever it was?

1:27 PM · May 20, 2026 View on X
REPLYAndrew Curran#517Andrew Curran@ANDREWCURRAN_

@emollick Was never named as far as I know. We also never learned the name of the OAI model that was in Figure 01.

Ethan MollickEthan Mollick@emollick

Did we ever learn what model won gold at the IMO from OpenAI? It was a year ago and it was called an unreleased internal general purpose model back then. Has GPT-5.5 Pro Extended caught up with whatever it was?

8:27 PM · May 20, 2026 · 17.5K Views
8:28 PM · May 20, 2026 · 1.8K Views