Unreleased OpenAI model GPT-6 Sol goes live on LMArena, free to test for 24 hours
arena · x · 2026-09-28
LMArena announced that OpenAI's unreleased model GPT-6 Sol (Medium) is now available in Direct Mode, free for users to test for the next 24 hours through Sept. 29 at 9am PT. After that, the model will remain available only in Battle and Agent Mode, where it is already live. It's another early leak of OpenAI's next flagship model via the blind-testing platform.
Related event: Unreleased OpenAI GPT-6 Sol Appears on LMArena for Limited Testing(2 posts)→
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